{"id":14047,"date":"2026-06-05T01:48:34","date_gmt":"2026-06-05T01:48:34","guid":{"rendered":"https:\/\/glabridinchina.com\/?p=14047"},"modified":"2026-06-05T02:30:02","modified_gmt":"2026-06-05T02:30:02","slug":"how-to-stabilize-glabridin-in-cosmetic-formulations","status":"publish","type":"post","link":"https:\/\/glabridinchina.com\/fr\/how-to-stabilize-glabridin-in-cosmetic-formulations\/","title":{"rendered":"Comment stabiliser la glabridine dans les formulations cosm\u00e9tiques"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"14047\" class=\"elementor elementor-14047\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-45fff30 e-flex e-con-boxed e-con e-parent\" data-id=\"45fff30\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-21b23ee elementor-widget elementor-widget-html\" data-id=\"21b23ee\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t  <script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\\\/\\\/glabridinchina.com\\\/how-to-stabilize-glabridin-in-cosmetic-formulations\\\/\"\n    },\n    \"about\": {\n        \"@type\": \"ChemicalSubstance\",\n        \"name\": \"Glabridin\",\n        \"alternateName\": \"\\u5149\\u7518\\u8349\\u5b9a\"\n    },\n    \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Huatai Bio-Fine Chemical\",\n        \"url\": \"https:\\\/\\\/glabridinchina.com\"\n    },\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do you stabilize glabridin in cosmetic formulations?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Stabilizing glabridin in cosmetic formulations requires systematic management of the key factors that drive its degradation, including oxidative exposure, trace metal ion contamination, formulation pH, and processing and storage temperature. Practical controls include: (1) antioxidant protection \\u2014 tocopherol at 0.2\\u20130.5% in the oil phase, supplemented by BHT or rosemary extract; (2) metal chelation \\u2014 disodium EDTA at 0.05\\u20130.1%, or sodium phytate for clean-label systems; (3) pH management \\u2014 maintain final formulation pH at 4.0\\u20135.5, verified after all cool-down additions; (4) temperature control \\u2014 incorporate glabridin below 60\\u00b0C, added to the main batch only during cool-down. Packaging selection (airless pump, UV-blocking container) further supports finished product stability.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the maximum processing temperature for glabridin?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The maximum processing temperature is 60\\u00b0C. Stability data (Ao et al., Natural Product Communications, 2010) shows glabridin generally demonstrates good stability below 60\\u00b0C with minimal content change. Above this threshold, thermal degradation accelerates significantly. In practice, glabridin should be pre-dissolved at 40\\u201350\\u00b0C and added to the main batch only during cool-down, never directly into a hot phase.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does humidity affect glabridin stability?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Stability data (Ao et al., Natural Product Communications, 2010) shows that at RH 75% and RH 90%, glabridin content is measurably lower than under dry storage conditions, with higher humidity correlating with greater degradation. Both raw materials and finished products are recommended to be stored under light-protected, dry, and sealed conditions.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What pH range stabilizes glabridin?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Glabridin demonstrates good stability under mildly acidic to neutral conditions. Based on formulation experience and stability studies on polyphenolic compounds, a pH range of approximately 4.0\\u20135.5 is generally considered favorable. pH 5.5\\u20136.5 is acceptable with reinforced antioxidant protection. Above pH 7.0, accelerated oxidative degradation occurs under alkaline conditions and glabridin should not be formulated in this range. Always verify final pH after all cool-down additions are complete.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does encapsulation improve glabridin stability in water-based formulations?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Huatai's 10% water-soluble grade uses hydroxypropyl \\u03b2-cyclodextrin (HP-\\u03b2-CD) encapsulation with a loading capacity of 15\\u201318%, stably maintained at 10% glabridin content. The HP-\\u03b2-CD shell protects glabridin from aqueous oxidation and improves photostability relative to unencapsulated oil dispersions in aqueous systems. Thermal stability is maintained at approximately 100\\u00b0C processing conditions, and photostability testing shows approximately 10% mass loss over 4 days.\"\n            }\n        }\n    ]\n}<\/script>\n  \n  <style>\n    :root {\n      --color-bg:           #f9f9f7;\n      --color-surface:      #ffffff;\n      --color-border:       #e5e2d9;\n      --color-text:         #1c1c1a;\n      --color-text-muted:   #6a6760;\n      --color-accent:       #2d5a3d;\n      --color-accent-light: #edf4ef;\n      --color-accent-mid:   #4a7c5f;\n      --color-warn:         #7a4f1e;\n      --color-warn-light:   #fdf4eb;\n      --color-data-bg:      #f3f1ed;\n      --font-heading:       'Merriweather', Georgia, 'Times New Roman', serif;\n      --font-body:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;\n      --max-width:          800px;\n      --radius:             6px;\n    }\n\n    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }\n    html { scroll-behavior: smooth; }\n\n    body {\n      font-family: var(--font-body);\n      font-size: 16px;\n      line-height: 1.8;\n      color: var(--color-text);\n      background: var(--color-bg);\n      -webkit-font-smoothing: antialiased;\n    }\n\n    \/* \u2500\u2500 Layout \u2500\u2500 *\/\n    .page-wrap {\n      max-width:100%;\n      margin: 0 auto;\n      padding: 0 24px 80px;\n    }\n\n    \/* \u2500\u2500 Header \u2500\u2500 *\/\n    .site-header {\n      border-bottom: 1px solid var(--color-border);\n      padding: 16px 24px;\n      display: flex;\n      align-items: center;\n      gap: 10px;\n    }\n    .site-header .brand {\n      font-family: var(--font-body);\n      font-size: 14px;\n      font-weight: 600;\n      color: var(--color-accent);\n      text-decoration: none;\n      letter-spacing: 0.01em;\n    }\n    .site-header .sep { color: var(--color-border); }\n    .site-header .section-label {\n      font-size: 13px;\n      color: var(--color-text-muted);\n    }\n\n    \/* \u2500\u2500 Article header \u2500\u2500 *\/\n    .article-header {\n      padding: 48px 0 32px;\n      border-bottom: 1px solid var(--color-border);\n      margin-bottom: 40px;\n    }\n    .tag-row {\n      display: flex;\n      gap: 8px;\n      margin-bottom: 16px;\n      flex-wrap: wrap;\n    }\n    .tag {\n      font-size: 11px;\n      font-weight: 600;\n      letter-spacing: 0.07em;\n      text-transform: uppercase;\n      padding: 3px 9px;\n      border-radius: 3px;\n      background: var(--color-accent-light);\n      color: var(--color-accent);\n    }\n    .tag.secondary {\n      background: var(--color-data-bg);\n      color: var(--color-text-muted);\n    }\n    h1 {\n      font-family: var(--font-heading);\n      font-size: clamp(24px, 3.5vw, 34px);\n      font-weight: 700;\n      line-height: 1.25;\n      color: var(--color-text);\n      margin-bottom: 16px;\n      letter-spacing: -0.01em;\n    }\n    .article-intro {\n      font-size: 17px;\n      line-height: 1.7;\n      color: var(--color-text-muted);\n      font-weight: 300;\n      max-width: 100%;\n    }\n    .byline {\n      margin-top: 18px;\n      font-size: 13px;\n      color: var(--color-text-muted);\n      display: flex;\n      align-items: center;\n      gap: 12px;\n      flex-wrap: wrap;\n    }\n    .byline strong { color: var(--color-text); font-weight: 600; }\n\n    \/* \u2500\u2500 Body \u2500\u2500 *\/\n    .article-body h2 {\n      font-family: var(--font-heading);\n      font-size: 20px;\n      font-weight: 700;\n      color: var(--color-text);\n      margin: 48px 0 14px;\n      padding-bottom: 10px;\n      border-bottom: 2px solid var(--color-accent-light);\n      letter-spacing: -0.01em;\n    }\n    .article-body h3 {\n      font-family: var(--font-heading);\n      font-size: 17px;\n      font-weight: 700;\n      color: var(--color-text);\n      margin: 36px 0 12px;\n      display: flex;\n      align-items: center;\n      gap: 10px;\n    }\n    .control-badge {\n      display: inline-flex;\n      align-items: center;\n      justify-content: center;\n      background: var(--color-accent);\n      color: #fff;\n      font-family: var(--font-body);\n      font-size: 11px;\n      font-weight: 700;\n      letter-spacing: 0.06em;\n      text-transform: uppercase;\n      padding: 3px 9px;\n      border-radius: 3px;\n      white-space: nowrap;\n    }\n    .article-body p { margin-bottom: 16px; }\n    .article-body ul {\n      margin: 10px 0 18px;\n      padding-left: 0;\n      list-style: none;\n    }\n    .article-body ul li {\n      padding: 4px 0 4px 20px;\n      position: relative;\n    }\n    .article-body ul li::before {\n      content: '\u2014';\n      position: absolute;\n      left: 0;\n      color: var(--color-accent-mid);\n      font-weight: 600;\n    }\n    .article-body strong { font-weight: 600; }\n    .article-body em { font-style: italic; }\n\n    \/* \u2500\u2500 Tables \u2500\u2500 *\/\n    .table-wrap {\n      overflow-x: auto;\n      margin: 20px 0 24px;\n      border-radius: var(--radius);\n      border: 1px solid var(--color-border);\n    }\n    table {\n      width: 100%;\n      border-collapse: collapse;\n      font-size: 14.5px;\n    }\n    thead th {\n      background: var(--color-data-bg);\n      font-weight: 600;\n      font-size: 11px;\n      letter-spacing: 0.05em;\n      text-transform: uppercase;\n      color: var(--color-text-muted);\n      padding: 10px 14px;\n      text-align: left;\n      border-bottom: 1px solid var(--color-border);\n    }\n    tbody td {\n      padding: 9px 14px;\n      border-bottom: 1px solid var(--color-border);\n      vertical-align: top;\n      line-height: 1.55;\n    }\n    tbody tr:last-child td { border-bottom: none; }\n    tbody tr:hover { background: #fafaf6; }\n    td strong { color: var(--color-accent); }\n\n    \/* \u2500\u2500 Callouts \u2500\u2500 *\/\n    .callout {\n      border-left: 3px solid var(--color-accent);\n      background: var(--color-accent-light);\n      padding: 14px 18px;\n      border-radius: 0 var(--radius) var(--radius) 0;\n      margin: 20px 0;\n      font-size: 15px;\n      line-height: 1.65;\n    }\n    .callout.warning {\n      border-left-color: var(--color-warn);\n      background: var(--color-warn-light);\n    }\n    .callout p { margin-bottom: 0; }\n    .callout p + p { margin-top: 8px; }\n\n    \/* \u2500\u2500 Figures \u2500\u2500 *\/\n    .figure { margin: 24px 0 28px; }\n    .figure img {\n      width: 100%;\n      max-width: 560px;\n      display: block;\n      border: 1px solid var(--color-border);\n      border-radius: var(--radius);\n    }\n    .figure figcaption {\n      margin-top: 8px;\n      font-size: 13px;\n      color: var(--color-text-muted);\n      line-height: 1.5;\n      font-style: italic;\n      max-width: 560px;\n    }\n\n    \/* \u2500\u2500 Checklist \u2500\u2500 *\/\n    .checklist {\n      background: var(--color-surface);\n      border: 1px solid var(--color-border);\n      border-radius: var(--radius);\n      padding: 20px 24px;\n      margin: 20px 0 24px;\n    }\n    .checklist-item {\n      display: flex;\n      align-items: flex-start;\n      gap: 12px;\n      padding: 7px 0;\n      border-bottom: 1px solid var(--color-border);\n      font-size: 15px;\n      line-height: 1.55;\n    }\n    .checklist-item:last-child { border-bottom: none; }\n    .check-box {\n      width: 18px;\n      height: 18px;\n      border: 2px solid var(--color-border);\n      border-radius: 3px;\n      flex-shrink: 0;\n      margin-top: 2px;\n    }\n\n    \/* \u2500\u2500 Related \u2500\u2500 *\/\n    .related-section {\n      margin-top: 52px;\n      padding-top: 28px;\n      border-top: 1px solid var(--color-border);\n    }\n    .related-section h2 {\n      font-family: var(--font-body);\n      font-size: 15px;\n      font-weight: 700;\n      margin-bottom: 14px;\n      color: var(--color-text);\n      border: none;\n      padding: 0;\n      text-transform: uppercase;\n      letter-spacing: 0.05em;\n    }\n    .related-links { display: grid; gap: 8px; }\n    .related-link {\n      display: flex;\n      align-items: center;\n      gap: 12px;\n      padding: 12px 14px;\n      background: var(--color-surface);\n      border: 1px solid var(--color-border);\n      border-radius: var(--radius);\n      text-decoration: none;\n      color: var(--color-text);\n      font-size: 14px;\n      transition: border-color 0.15s, background 0.15s;\n    }\n    .related-link:hover {\n      border-color: var(--color-accent);\n      background: var(--color-accent-light);\n    }\n    .related-link-arrow {\n      color: var(--color-accent);\n      font-size: 16px;\n      flex-shrink: 0;\n      margin-left: auto;\n    }\n\n    \/* \u2500\u2500 CTA \u2500\u2500 *\/\n    .cta-box {\n      margin-top: 36px;\n      background: var(--color-accent);\n      border-radius: var(--radius);\n      padding: 24px 28px;\n      display: flex;\n      align-items: center;\n      justify-content: space-between;\n      gap: 20px;\n      flex-wrap: wrap;\n    }\n    .cta-box-text { color: rgba(255,255,255,0.85); font-size: 14px; }\n    .cta-box-text strong {\n      color: #fff;\n      display: block;\n      font-size: 16px;\n      margin-bottom: 3px;\n      font-family: var(--font-heading);\n    }\n    .cta-btn {\n      background: #fff;\n      color: var(--color-accent);\n      text-decoration: none;\n      font-weight: 700;\n      font-size: 13px;\n      padding: 9px 20px;\n      border-radius: 4px;\n      white-space: nowrap;\n      letter-spacing: 0.02em;\n      flex-shrink: 0;\n    }\n\n    \/* \u2500\u2500 References \u2500\u2500 *\/\n    .references {\n      margin-top: 44px;\n      padding-top: 24px;\n      border-top: 1px solid var(--color-border);\n    }\n    .references h2 {\n      font-family: var(--font-body);\n      font-size: 12px;\n      font-weight: 700;\n      margin-bottom: 12px;\n      color: var(--color-text-muted);\n      border: none;\n      padding: 0;\n      text-transform: uppercase;\n      letter-spacing: 0.07em;\n    }\n    .references ol { padding-left: 18px; }\n    .references li {\n      font-size: 13px;\n      color: var(--color-text-muted);\n      line-height: 1.6;\n      margin-bottom: 7px;\n    }\n    .references a { color: var(--color-accent); }\n\n    \/* \u2500\u2500 Footer \u2500\u2500 *\/\n    .article-footer {\n      margin-top: 36px;\n      padding-top: 18px;\n      border-top: 1px solid var(--color-border);\n      font-size: 12px;\n      color: var(--color-text-muted);\n      line-height: 1.6;\n    }\n  <\/style>\n<\/head>\n<body>\n  <div class=\"page-wrap\">\n    <header class=\"article-header\">\n      <div class=\"tag-row\">\n        <span class=\"tag\">FAQ<\/span>\n        <span class=\"tag secondary\">Glabridine<\/span>\n        <span class=\"tag secondary\">Stabilit\u00e9 de la formulation<\/span>\n      <\/div>\n      <p class=\"article-intro\">La stabilisation de la glabridine dans les formulations cosm\u00e9tiques n\u00e9cessite une gestion syst\u00e9matique des facteurs cl\u00e9s qui entra\u00eenent sa d\u00e9gradation \u2014 exposition \u00e0 l'oxydation, contamination par des ions de m\u00e9taux traces, pH de la formulation et temp\u00e9rature de traitement. Cet article couvre le protocole de stabilisation complet, de la manipulation des mati\u00e8res premi\u00e8res \u00e0 l'emballage du produit fini.<\/p>\n      <div class=\"byline\">\n        <span><strong>Huatai Bio-Fine Chemical<\/strong> \u2014 fabricant d'actifs cosm\u00e9tiques de haute puret\u00e9 depuis 2008<\/span>\n        <span style=\"color:var(--color-border)\">\u00b7<\/span>\n        <span>Publi\u00e9 2026<\/span>\n      <\/div>\n    <\/header>\n\n    <article class=\"article-body\">\n\n      <p>La stabilisation de la glabridine dans les formulations cosm\u00e9tiques n\u00e9cessite une gestion syst\u00e9matique des facteurs cl\u00e9s qui entra\u00eenent sa d\u00e9gradation, notamment l'exposition \u00e0 l'oxydation, la contamination par des ions de m\u00e9taux traces, le pH de la formulation et la temp\u00e9rature de traitement et de stockage. Comme ces facteurs interagissent souvent entre eux, l'optimisation d'un seul facteur tout en n\u00e9gligeant les autres n'atteint g\u00e9n\u00e9ralement pas une stabilit\u00e9 satisfaisante \u00e0 long terme.<\/p>\n\n      <h2>Les quatre contr\u00f4les de stabilisation<\/h2>\n\n      <!-- Control 1 -->\n      <h3><span class=\"control-badge\">Contr\u00f4le 1<\/span> Temp\u00e9rature : la contrainte de traitement<\/h3>\n\n      <p><strong>Temp\u00e9rature de traitement maximale : 60\u00b0C.<\/strong><\/p>\n\n      <p>Cette fen\u00eatre de stabilit\u00e9 thermique a \u00e9t\u00e9 \u00e9tablie dans des conditions d\u00e9finies (Ao et al., <em>Natural Product Communications<\/em>, 2010, DOI: 10.1177\/1934578X1000501214) : en dessous de 60\u00b0C, la glabridine pr\u00e9sente g\u00e9n\u00e9ralement une bonne stabilit\u00e9 avec un changement de contenu minimal. Cependant, une fois ce seuil de temp\u00e9rature d\u00e9pass\u00e9, la d\u00e9gradation thermique s'acc\u00e9l\u00e8re consid\u00e9rablement, entra\u00eenant une perte de contenu actif.<\/p>\n\n      <p>En pratique de formulation, cela se traduit par une r\u00e8gle unique et non n\u00e9gociable : <strong>la glabridine doit \u00eatre ajout\u00e9e au lot principal uniquement pendant le refroidissement, jamais dans une phase chaude.<\/strong><\/p>\n\n      <p><strong>S\u00e9quence d'incorporation standard :<\/strong><\/p>\n\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Stade de traitement<\/th>\n              <th>Temp\u00e9rature<\/th>\n              <th>Action<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Pr\u00e9-dissolution<\/td>\n              <td>40\u201350\u00b0C<\/td>\n              <td>Dissoudre la glabridine dans du propyl\u00e8ne glycol, du butyl\u00e8ne glycol ou de l'\u00e9thanol ; remuer jusqu'\u00e0 obtention d'une solution limpide<\/td>\n            <\/tr>\n            <tr>\n              <td>Refroidissement du lot principal<\/td>\n              <td>En dessous de 50\u00b0C<\/td>\n              <td>Ajouter l'actif pr\u00e9dissous ; remuer pour incorporer<\/td>\n            <\/tr>\n            <tr>\n              <td>Exposition br\u00e8ve maximale<\/td>\n              <td>60\u00b0C<\/td>\n              <td>Acceptable pour de courtes dur\u00e9es ; ne pas maintenir au-dessus de cette temp\u00e9rature<\/td>\n            <\/tr>\n            <tr>\n              <td>Stockage (produit fini)<\/td>\n              <td>15\u201325\u00b0C<\/td>\n              <td>\u00c0 l'abri de la chaleur, de la lumi\u00e8re et de l'humidit\u00e9<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <figure class=\"figure\">\n        <img decoding=\"async\" src=\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png\"\n             alt=\"Graphique lin\u00e9aire montrant la concentration de glabridine sur 24 heures \u00e0 six temp\u00e9ratures : 4\u00b0C, 25\u00b0C, 40\u00b0C, 60\u00b0C, 80\u00b0C et 100\u00b0C\">\n        <figcaption>Fig. 1 \u2014 Stabilit\u00e9 thermique de la glabridine \u00e0 4\u2013100\u00b0C sur 24 heures. Les concentrations \u00e0 4\u00b0C, 25\u00b0C, 40\u00b0C et 60\u00b0C restent essentiellement stables. La d\u00e9gradation s'acc\u00e9l\u00e8re significativement \u00e0 80\u00b0C et 100\u00b0C. Donn\u00e9es : Ao et al., <em>Natural Product Communications<\/em>, 2010.<\/figcaption>\n      <\/figure>\n\n      <div class=\"callout warning\">\n        <p><strong>Que se passe-t-il lorsque la glabridine est ajout\u00e9e au-dessus de 60\u00b0C :<\/strong> Une perte d'activit\u00e9 se produit avant que l'\u00e9mulsification ne soit compl\u00e8te. Le produit fini peut \u00eatre conforme aux sp\u00e9cifications \u00e0 T=0 (car la d\u00e9gradation \u00e9tait partielle), mais une stabilit\u00e9 acc\u00e9l\u00e9r\u00e9e r\u00e9v\u00e9lera un d\u00e9veloppement de couleur acc\u00e9l\u00e9r\u00e9 et une baisse du dosage \u2014 car la capacit\u00e9 antioxydante du syst\u00e8me \u00e9tait d\u00e9j\u00e0 partiellement consomm\u00e9e lors de la fabrication.<\/p>\n      <\/div>\n\n      <p>La m\u00eame \u00e9tude a \u00e9galement identifi\u00e9 l'humidit\u00e9 comme un facteur environnemental important affectant la stabilit\u00e9 de la glabridine. \u00c0 75% et 90% d'humidit\u00e9 relative (HR), la teneur en glabridine \u00e9tait significativement plus faible que dans des conditions de stockage \u00e0 sec, une humidit\u00e9 plus \u00e9lev\u00e9e corr\u00e9lant avec une plus grande d\u00e9gradation. Il est donc recommand\u00e9 de stocker les mati\u00e8res premi\u00e8res et les produits finis \u00e0 l'abri de la lumi\u00e8re, au sec et sous scell\u00e9s pour obtenir une stabilit\u00e9 optimale.<\/p>\n\n      <!-- Control 2 -->\n      <h3><span class=\"control-badge\">Contr\u00f4le 2<\/span> Protection antioxydante<\/h3>\n\n      <p>Les deux groupes hydroxyles ph\u00e9noliques de la glabridine sont la source structurelle de son activit\u00e9 inhibitrice de la tyrosinase \u2014 et simultan\u00e9ment le site de vuln\u00e9rabilit\u00e9 oxydative. Un syst\u00e8me antioxydant efficace intercepte de mani\u00e8re sacrificielle les radicaux libres avant qu'ils n'atteignent la mol\u00e9cule de glabridine.<\/p>\n\n      <p><strong>Syst\u00e8me antioxydant recommand\u00e9 par type de formulation :<\/strong><\/p>\n\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Type de formulation<\/th>\n              <th>Antioxydant primaire<\/th>\n              <th>Antioxydant secondaire<\/th>\n              <th>Notes<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>\u00c9mulsion O\/E standard<\/td>\n              <td>Tocoph\u00e9rol 0,2\u20130,5%<\/td>\n              <td>BHT 0,02\u20130,05%<\/td>\n              <td>Le plus robuste ; BHT dans la phase huileuse<\/td>\n            <\/tr>\n            <tr>\n              <td>COSMOS \/ clean-label<\/td>\n              <td>Tocoph\u00e9rol 0,2\u20130,5%<\/td>\n              <td>Extrait de romarin 0,05\u20130,2%<\/td>\n              <td>Certifi\u00e9 COSMOS<\/td>\n            <\/tr>\n            <tr>\n              <td>Huile pour le visage \/ anhydre<\/td>\n              <td>Tocoph\u00e9rol 0,3\u20130,5%<\/td>\n              <td>Palmitate d'ascorbyle 0,05\u20130,1%<\/td>\n              <td>Charge antioxydante \u00e9lev\u00e9e ; eau minimale<\/td>\n            <\/tr>\n            <tr>\n              <td>Tonique\/essence \u00e0 base d'eau<\/td>\n              <td>\u2014 (utiliser le grade 10% HP-\u03b2-CD)<\/td>\n              <td>Phosphate d'ascorbyle de sodium 0,2\u20130,5%<\/td>\n              <td>L'encapsulation HP-\u03b2-CD assure la protection de la phase huileuse ; renforcement optionnel des antioxydants de la phase aqueuse<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <div class=\"callout\">\n        <p><strong>L'emplacement est important :<\/strong> Le tocoph\u00e9rol doit \u00eatre incorpor\u00e9 dans la phase huileuse ou dissous avec l'actif, et non ajout\u00e9 \u00e0 la phase aqueuse. C'est un antioxydant de la phase lipidique qui n'a aucun effet protecteur lorsqu'il est dispers\u00e9 dans un syst\u00e8me aqueux.<\/p>\n      <\/div>\n\n      <p>Pour la voie COSMOS d'\u00e9tiquetage propre : l'extrait de romarin (standardis\u00e9 par sa teneur en acide carnosique) offre une protection comparable au BHT dans les tests acc\u00e9l\u00e9r\u00e9s, avec l'avantage suppl\u00e9mentaire d'\u00eatre certifi\u00e9 COSMOS et compatible avec les grades de glabridine certifi\u00e9s COSMOS de Huatai.<\/p>\n\n      <!-- Control 3 -->\n      <h3><span class=\"control-badge\">Contr\u00f4le 3<\/span> Ch\u00e9lation des m\u00e9taux<\/h3>\n\n      <p>Les antioxydants fonctionnent en terminant les r\u00e9actions en cha\u00eene des radicaux libres, tandis que les agents ch\u00e9lateurs agissent en liant les ions de m\u00e9taux de transition tels que le Fe et le Cu, supprimant leur capacit\u00e9 \u00e0 catalyser les r\u00e9actions d'oxydation. Les deux strat\u00e9gies sont compl\u00e9mentaires et abordent diff\u00e9rents points du parcours de d\u00e9gradation.<\/p>\n\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Ch\u00e9lateur<\/th>\n              <th>Niveau d'utilisation<\/th>\n              <th>Compatibilit\u00e9<\/th>\n              <th>Notes<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><strong>EDTA disodique<\/strong><\/td>\n              <td>0,05 % \u2013 0,1 %<\/td>\n              <td>Universel<\/td>\n              <td>Le plus efficace ; choix standard de l'industrie<\/td>\n            <\/tr>\n            <tr>\n              <td>Phytate de sodium<\/td>\n              <td>0,1%\u20130,5%<\/td>\n              <td>Compatible COSMOS<\/td>\n              <td>Agent ch\u00e9latant naturel ; d\u00e9montre \u00e9galement des propri\u00e9t\u00e9s antioxydantes et de conditionnement de la peau<\/td>\n            <\/tr>\n            <tr>\n              <td>Gluconate de sodium<\/td>\n              <td>0,1\u00a0%\u20130,3\u00a0%<\/td>\n              <td>Universel<\/td>\n              <td>Plus doux ; pour des formulations \u00e0 additifs minimaux<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>Retirer l'EDTA sans introduire d'agent ch\u00e9latant alternatif efficace augmente souvent le risque de d\u00e9coloration oxydative et de probl\u00e8mes de stabilit\u00e9. Les extraits botaniques, les d\u00e9riv\u00e9s de vitamines et les huiles v\u00e9g\u00e9tales peuvent contenir des traces r\u00e9siduelles de Fe, Cu et d'autres ions m\u00e9talliques, qui peuvent catalyser les r\u00e9actions oxydatives dans certaines conditions. Cet effet catalytique peut se manifester par des changements de stabilit\u00e9 visibles en quelques semaines selon le syst\u00e8me de formulation.<\/p>\n\n      <p>Le phytate de sodium est le remplacement recommand\u00e9 conforme \u00e0 COSMOS. Il est efficace dans la plage de pH utilis\u00e9e pour les formulations de glabridine (4,0\u20136,5), d\u00e9montre des propri\u00e9t\u00e9s antioxydantes et de conditionnement de la peau, et est accept\u00e9 selon COSMOS v4.<\/p>\n\n      <!-- Control 4 -->\n      <h3><span class=\"control-badge\">Contr\u00f4le 4<\/span> Gestion du pH<\/h3>\n\n      <p>La glabridine pr\u00e9sente une bonne stabilit\u00e9 dans des conditions l\u00e9g\u00e8rement acides \u00e0 neutres, tandis que son taux de d\u00e9gradation augmente dans les environnements alcalins. Sur la base de l'exp\u00e9rience de formulation et des \u00e9tudes de stabilit\u00e9 sur les compos\u00e9s polyph\u00e9noliques, une plage de pH d'environ 4,0\u20135,5 est g\u00e9n\u00e9ralement consid\u00e9r\u00e9e comme favorable pour maintenir la stabilit\u00e9 de la glabridine dans les syst\u00e8mes cosm\u00e9tiques.<\/p>\n\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Gamme de pH<\/th>\n              <th>Stabilit\u00e9<\/th>\n              <th>Recommandation<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><strong>4,0\u20135,5<\/strong><\/td>\n              <td><strong>Favorable<\/strong><\/td>\n              <td>Plage cible ; tampon pour maintenir<\/td>\n            <\/tr>\n            <tr>\n              <td>5,5\u20136,5<\/td>\n              <td>Bien<\/td>\n              <td>Acceptable ; renforcer le syst\u00e8me antioxydant<\/td>\n            <\/tr>\n            <tr>\n              <td>6,5\u20137,0<\/td>\n              <td>Marginal<\/td>\n              <td>Risque de d\u00e9gradation plus \u00e9lev\u00e9 ; surveiller attentivement lors des tests de stabilit\u00e9<\/td>\n            <\/tr>\n            <tr>\n              <td>&gt;7,0<\/td>\n              <td>Faible<\/td>\n              <td>\u00c0 \u00e9viter \u2014 d\u00e9gradation oxydative acc\u00e9l\u00e9r\u00e9e dans des conditions alcalines, changement de couleur progressif<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <figure class=\"figure\">\n        <img decoding=\"async\" src=\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_pH_stability.png\"\n             alt=\"Curve chart showing glabridin concentration across pH 1\u201313, stable plateau at pH 1\u20136 with sharp decline above pH 7\">\n        <figcaption>Fig. 2 \u2014 Effet du pH sur la stabilit\u00e9 de la glabridine. La concentration reste stable sur une plage de pH de 1 \u00e0 6, puis diminue fortement au-dessus de pH 7. \u00c0 pH 13, la concentration tombe \u00e0 environ 7 \u00b5g\/mL. Donn\u00e9es : Ao et al., <em>Natural Product Communications<\/em>, 2010.<\/figcaption>\n      <\/figure>\n\n      <div class=\"callout warning\">\n        <p><strong>R\u00e8gle de v\u00e9rification du pH :<\/strong> Toujours mesurer le pH final <em>apr\u00e8s<\/em> toutes les additions de refroidissement sont termin\u00e9es \u2014 pas avant. Certains co-actifs tels que le niacinamide, l'acide tranexamique et certains peptides peuvent influencer le pH final du syst\u00e8me de formulation. M\u00eame si le syst\u00e8me de base affiche un pH d'environ 5,8 avant l'ajout d'actifs, le pH final peut changer apr\u00e8s que tous les ingr\u00e9dients de la phase de refroidissement soient enti\u00e8rement incorpor\u00e9s et homog\u00e9n\u00e9is\u00e9s. Si le pH n'est pas re-mesur\u00e9 et ajust\u00e9 dans l'\u00e9tat d'\u00e9quilibre final, le pH r\u00e9el du produit fini peut s'\u00e9carter de la cible pr\u00e9vue, affectant potentiellement la stabilit\u00e9 \u00e0 long terme.<\/p>\n      <\/div>\n\n      <p>Les syst\u00e8mes tampons organiques tels que <strong>l'acide citrique\/citrate de sodium<\/strong> (plage d'efficacit\u00e9 pH 3,0\u20136,2) ou <strong>l'acide lactique\/lactate de sodium<\/strong> (plage d'efficacit\u00e9 pH 3,6\u20135,8) sont couramment utilis\u00e9s dans les formulations cosm\u00e9tiques. Les deux offrent une bonne compatibilit\u00e9 de formulation et pr\u00e9sentent g\u00e9n\u00e9ralement un risque plus faible d'introduire une contamination par des traces de m\u00e9taux par rapport aux syst\u00e8mes tampons inorganiques.<\/p>\n\n      <!-- Packaging -->\n      <h2>Emballage : Un facteur externe cl\u00e9 affectant la stabilit\u00e9<\/h2>\n\n      <p>Au-del\u00e0 de la chimie de la formulation, l'emballage joue un r\u00f4le important dans la gestion de la stabilit\u00e9 de la glabridine pendant l'utilisation par le consommateur en limitant l'exposition \u00e0 la lumi\u00e8re, \u00e0 l'oxyg\u00e8ne et \u00e0 d'autres facteurs de stress environnementaux.<\/p>\n\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Choix de l'emballage<\/th>\n              <th>M\u00e9canisme de protection<\/th>\n              <th>Format applicable<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td><strong>Pompe sans air<\/strong><\/td>\n              <td>\u00c9limine l'exposition r\u00e9p\u00e9t\u00e9e \u00e0 l'O\u2082 dans l'espace de t\u00eate \u00e0 chaque pression<\/td>\n              <td>S\u00e9rums, \u00e9mulsions, lotions<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Contenant opaque ou bloquant les UV<\/strong><\/td>\n              <td>R\u00e9duit le risque de photod\u00e9gradation ; l'exposition \u00e0 la lumi\u00e8re a \u00e9t\u00e9 identifi\u00e9e comme un facteur de d\u00e9gradation primaire de la glabridine (Ao et al., 2010)<\/td>\n              <td>S\u00e9rums huileux transparents, toniques dans des flacons transparents<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Couverture d'azote pendant le remplissage<\/strong><\/td>\n              <td>R\u00e9duit l'O\u2082 dissous au point de fabrication<\/td>\n              <td>Formulations haut de gamme avec des revendications de longue dur\u00e9e de conservation<\/td>\n            <\/tr>\n            <tr>\n              <td><strong>Sachet scell\u00e9 en papier d'aluminium<\/strong><\/td>\n              <td>Offre une barri\u00e8re efficace contre la lumi\u00e8re et l'oxyg\u00e8ne<\/td>\n              <td>Formats \u00e0 usage unique, formats de voyage<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p>La combinaison d'une pompe sans air + d'un contenant opaque est la solution la plus pratique pour la plupart des formulations de d\u00e9tail. Elle ne n\u00e9cessite aucune modification de la formulation elle-m\u00eame et aborde directement les deux principales voies de d\u00e9gradation du produit fini.<\/p>\n\n      <!-- Stability Testing -->\n      <h2>Protocole de test de stabilit\u00e9<\/h2>\n\n      <p>Aligner les tests de stabilit\u00e9 sur les normes ICH pour g\u00e9n\u00e9rer des donn\u00e9es de dur\u00e9e de conservation d\u00e9fendables :<\/p>\n\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Condition<\/th>\n              <th>Param\u00e8tres<\/th>\n              <th>Dur\u00e9e<\/th>\n              <th>Base r\u00e9glementaire<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Acc\u00e9l\u00e9r\u00e9<\/td>\n              <td>40\u00b0C \/ 75% HR<\/td>\n              <td>12 semaines<\/td>\n              <td>ICH Q1A(R2)<\/td>\n            <\/tr>\n            <tr>\n              <td>Cong\u00e9lation-d\u00e9gel<\/td>\n              <td>\u221210\u00b0C \u2194 25\u00b0C, cycles de 24h<\/td>\n              <td>5 cycles<\/td>\n              <td>Ligne directrice PCPC\/CTFA<\/td>\n            <\/tr>\n            <tr>\n              <td>Photostabilit\u00e9<\/td>\n              <td>D65 + UV selon ICH Q1B<\/td>\n              <td>6 semaines<\/td>\n              <td>ICH Q1B<\/td>\n            <\/tr>\n            <tr>\n              <td>Temps r\u00e9el<\/td>\n              <td>25\u00b0C \/ 60% HR<\/td>\n              <td>24 mois<\/td>\n              <td>ICH Q1A(R2)<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <p><strong>Param\u00e8tres d'\u00e9valuation \u00e0 chaque point temporel :<\/strong><\/p>\n      <ul>\n        <li>pH \u2014 signaler tout d\u00e9calage sup\u00e9rieur \u00e0 0,3 unit\u00e9<\/li>\n        <li>Couleur : CIE L*a*b* \u2014 suivre sp\u00e9cifiquement \u0394b* (indice de jaunissement)<\/li>\n        <li>Dosage de la glabridine par HPLC<\/li>\n        <li>Viscosit\u00e9<\/li>\n        <li>Organoleptique : odeur, s\u00e9paration de phase visuelle<\/li>\n      <\/ul>\n\n      <p>Les tests de stabilit\u00e9 acc\u00e9l\u00e9r\u00e9e \u00e0 40\u00b0C\/75% d'humidit\u00e9 relative pendant environ 12 semaines sont couramment utilis\u00e9s dans le d\u00e9veloppement cosm\u00e9tique comme mod\u00e8le pr\u00e9dictif pr\u00e9coce pour \u00e9valuer la robustesse de la formulation et les tendances de d\u00e9gradation. Bien que le comportement de d\u00e9gradation d\u00e9pendant de la temp\u00e9rature puisse \u00eatre d\u00e9crit \u00e0 l'aide de relations d'Arrhenius, une \u00e9quivalence directe entre les p\u00e9riodes de stockage acc\u00e9l\u00e9r\u00e9 et en temps r\u00e9el ne peut pas \u00eatre universellement \u00e9tablie et n\u00e9cessite une \u00e9valuation cin\u00e9tique sp\u00e9cifique au produit conform\u00e9ment \u00e0 la norme ICH Q1E.<\/p>\n\n      <p>Une formulation de glabridine bien stabilis\u00e9e devrait pr\u00e9senter une d\u00e9gradation minimale de l'actif et un changement de couleur limit\u00e9 dans des conditions de stabilit\u00e9 acc\u00e9l\u00e9r\u00e9e, avec une perte d'actif g\u00e9n\u00e9ralement cibl\u00e9e \u00e0 moins de 5% et un \u0394b* maintenu \u00e0 un faible niveau conform\u00e9ment aux sp\u00e9cifications pr\u00e9d\u00e9finies du produit.<\/p>\n\n      <!-- Checklist -->\n      <h2>Liste de contr\u00f4le de stabilisation<\/h2>\n\n      <p>Avant de soumettre une formulation contenant de la glabridine \u00e0 des tests de stabilit\u00e9, v\u00e9rifiez chacun des \u00e9l\u00e9ments suivants :<\/p>\n\n      <div class=\"checklist\">\n        <div class=\"checklist-item\">\n          <div class=\"check-box\"><\/div>\n          <span>Glabridine ajout\u00e9e en dessous de 60\u00b0C \u2014 ajout pendant le refroidissement, document\u00e9 dans la SOP<\/span>\n        <\/div>\n        <div class=\"checklist-item\">\n          <div class=\"check-box\"><\/div>\n          <span>Antioxydant (tocoph\u00e9rol) incorpor\u00e9 dans la phase huileuse \u00e0 \u22650,2%<\/span>\n        <\/div>\n        <div class=\"checklist-item\">\n          <div class=\"check-box\"><\/div>\n          <span>Agent ch\u00e9lateur de m\u00e9taux (EDTA ou phytate de sodium) pr\u00e9sent dans la phase aqueuse<\/span>\n        <\/div>\n        <div class=\"checklist-item\">\n          <div class=\"check-box\"><\/div>\n          <span>pH final mesur\u00e9 apr\u00e8s tous les ajouts pendant le refroidissement : cible 4,0\u20135,5<\/span>\n        <\/div>\n        <div class=\"checklist-item\">\n          <div class=\"check-box\"><\/div>\n          <span>Syst\u00e8me tampon dans la phase aqueuse pour maintenir le pH pendant la dur\u00e9e de conservation<\/span>\n        <\/div>\n        <div class=\"checklist-item\">\n          <div class=\"check-box\"><\/div>\n          <span>Emballage : pompe sans air et\/ou contenant bloquant les UV confirm\u00e9<\/span>\n        <\/div>\n        <div class=\"checklist-item\">\n          <div class=\"check-box\"><\/div>\n          <span>Programme de stabilit\u00e9 align\u00e9 sur ICH Q1A(R2) et Q1B<\/span>\n        <\/div>\n        <div class=\"checklist-item\">\n          <div class=\"check-box\"><\/div>\n          <span>\u0394b* suivi \u00e0 chaque point temporel (indice de jaunissement)<\/span>\n        <\/div>\n      <\/div>\n\n      <div class=\"callout\">\n        <p>Chaque lot est exp\u00e9di\u00e9 avec COA, TDS et SDS\/MSDS. Tests suppl\u00e9mentaires disponibles sur demande.<\/p>\n      <\/div>\n\n      <!-- Related -->\n      <div class=\"related-section\">\n        <h2>Ressources connexes<\/h2>\n        <div class=\"related-links\">\n          <a class=\"related-link\" href=\"https:\/\/glabridinchina.com\/fr\/glabridin\/\">\n            <span>Guide de la Glabridine pour la Formulation Cosm\u00e9tique \u2014 R\u00e9f\u00e9rence Technique Compl\u00e8te<br><small style=\"color:var(--color-text-muted);font-weight:400\">Donn\u00e9es de stabilit\u00e9 compl\u00e8tes, matrice de grades et protocoles de formulation<\/small><\/span>\n            <span class=\"related-link-arrow\">\u2192<\/span>\n          <\/a>\n          <a class=\"related-link\" href=\"https:\/\/glabridinchina.com\/fr\/why-does-glabridin-discolor-in-emulsions-huatai-bio-fine-chemical\/\">\n            <span>Pourquoi la glabridine se d\u00e9colore-t-elle dans les \u00e9mulsions ?<br><small style=\"color:var(--color-text-muted);font-weight:400\">Analyse des causes profondes et cadre de diagnostic pour la d\u00e9coloration des formules<\/small><\/span>\n            <span class=\"related-link-arrow\">\u2192<\/span>\n          <\/a>\n          <a class=\"related-link\" href=\"\/fr\/\">\n            <span>Quelle plage de pH la glabridine n\u00e9cessite-t-elle dans les formulations cosm\u00e9tiques ?<br><small style=\"color:var(--color-text-muted);font-weight:400\">S\u00e9lection du tampon et gestion du pH en d\u00e9tail<\/small><\/span>\n            <span class=\"related-link-arrow\">\u2192<\/span>\n          <\/a>\n          <a class=\"related-link\" href=\"\/fr\/\">\n            <span>La glabridine peut-elle fonctionner dans des syst\u00e8mes \u00e0 base d'eau ?<br><small style=\"color:var(--color-text-muted);font-weight:400\">Sp\u00e9cifications techniques du grade HP-\u03b2-CD et incorporation aqueuse<\/small><\/span>\n            <span class=\"related-link-arrow\">\u2192<\/span>\n          <\/a>\n        <\/div>\n      <\/div>\n\n      <!-- CTA -->\n      <div class=\"cta-box\">\n        <div class=\"cta-box-text\">\n          <strong>Demander des \u00e9chantillons, un COA ou une consultation technique<\/strong>\n          glabridinchina.com \u00b7 jelly@huataibio.com \u00b7 +86 17868678161\n        <\/div>\n        <a class=\"cta-btn\" href=\"https:\/\/glabridinchina.com\/fr\/nous-contacter\/\">Contactez-nous \u2192<\/a>\n      <\/div>\n\n      <!-- References -->\n      <div class=\"references\">\n        <h2>R\u00e9f\u00e9rences<\/h2>\n        <ol>\n          <li>Ao M, Shi Y, Cui Y, Guo W, Wang J, Yu L. Facteurs influen\u00e7ant la stabilit\u00e9 de la glabridine. <em>Natural Product Communications<\/em>, Vol. 5(12), 1907\u20131912, 2010. DOI: 10.1177\/1934578X1000501214. PMID: 21299118.<\/li>\n          <li>Yokota T, Nishio H, Kubota Y, Mizoguchi M. L'effet inhibiteur de la glabridine extraite de la r\u00e9glisse sur la m\u00e9lanogen\u00e8se et l'inflammation. <em>Pigment Cell Research<\/em>, 11(6), 355\u2013361, 1998. DOI: 10.1111\/j.1600-0749.1998.tb00494.x.<\/li>\n          <li>ICH Q1A(R2) : Essais de stabilit\u00e9 des nouvelles substances m\u00e9dicamenteuses et des nouveaux produits m\u00e9dicamenteux. Conseil international d'harmonisation, 2003.<\/li>\n          <li>ICH Q1B : Essais de photostabilit\u00e9 des nouvelles substances et des nouveaux produits m\u00e9dicamenteux. Conseil international d'harmonisation, 1996.<\/li>\n          <li>ICH Q1E : \u00c9valuation des donn\u00e9es de stabilit\u00e9. Conseil international d'harmonisation, 2003.<\/li>\n        <\/ol>\n      <\/div>\n\n      <div class=\"article-footer\">\n        <p>Pour les formulateurs de cosm\u00e9tiques professionnels et les publics de R&amp;D. Ne constitue pas un avis r\u00e9glementaire.<br>\n        Publi\u00e9 en 2026 \u2014 Huatai Bio-Fine Chemical, Xi'an, Shaanxi, Chine.<\/p>\n      <\/div>\n\n    <\/article>\n  <\/div>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>FAQ Stabilit\u00e9 de la formulation de glabridine La stabilisation de la glabridine dans les formulations cosm\u00e9tiques n\u00e9cessite une gestion syst\u00e9matique des facteurs cl\u00e9s qui entra\u00eenent sa d\u00e9gradation : exposition \u00e0 l'oxydation, traces de m\u00e9taux\u2026<\/p>","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[414],"tags":[],"class_list":["post-14047","post","type-post","status-publish","format-standard","hentry","category-troubleshooting-faq"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.8 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Stabilize Glabridin in Cosmetic Formulations | Huatai Bio-Fine Chemical<\/title>\n<meta name=\"description\" content=\"A complete stabilization protocol for glabridin in cosmetic formulations: temperature control, antioxidant system design, metal chelation, pH management, and packaging. From Huatai, manufacturer of high-purity glabridin since 2008.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/glabridinchina.com\/fr\/how-to-stabilize-glabridin-in-cosmetic-formulations\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Stabilize Glabridin in Cosmetic Formulations\" \/>\n<meta property=\"og:description\" content=\"A complete stabilization protocol for glabridin in cosmetic formulations: temperature control, antioxidant system design, metal chelation, pH management, and packaging. From Huatai, manufacturer of high-purity glabridin since 2008.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/glabridinchina.com\/fr\/how-to-stabilize-glabridin-in-cosmetic-formulations\/\" \/>\n<meta property=\"og:site_name\" content=\"Shaanxi Huatai Bio-Fine Chemical Co., Ltd.\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-05T01:48:34+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-05T02:30:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png\" \/>\n<meta name=\"author\" content=\"Huatai\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Huatai\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/\"},\"author\":{\"name\":\"Huatai\",\"@id\":\"https:\/\/glabridinchina.com\/#\/schema\/person\/1fc9183390cde309170faf98dbabcaab\"},\"headline\":\"How to Stabilize Glabridin in Cosmetic Formulations\",\"datePublished\":\"2026-06-05T01:48:34+00:00\",\"dateModified\":\"2026-06-05T02:30:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/\"},\"wordCount\":1609,\"publisher\":{\"@id\":\"https:\/\/glabridinchina.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png\",\"articleSection\":[\"Troubleshooting &amp; FAQ\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/\",\"url\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/\",\"name\":\"How to Stabilize Glabridin in Cosmetic Formulations | Huatai Bio-Fine Chemical\",\"isPartOf\":{\"@id\":\"https:\/\/glabridinchina.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png\",\"datePublished\":\"2026-06-05T01:48:34+00:00\",\"dateModified\":\"2026-06-05T02:30:02+00:00\",\"description\":\"A complete stabilization protocol for glabridin in cosmetic formulations: temperature control, antioxidant system design, metal chelation, pH management, and packaging. From Huatai, manufacturer of high-purity glabridin since 2008.\",\"breadcrumb\":{\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#primaryimage\",\"url\":\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png\",\"contentUrl\":\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/glabridinchina.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to Stabilize Glabridin in Cosmetic Formulations\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/glabridinchina.com\/#website\",\"url\":\"https:\/\/glabridinchina.com\/\",\"name\":\"Shaanxi Huatai Bio-Fine Chemical Co., Ltd.\",\"description\":\"Huatai Bio-Fine Chemicals: ISO-certified manufacturer of high-purity skincare ingredients like Glabridin and Tranexamic Acid. Offering flexible supply with full documentation for brands &amp; OEMs worldwide.\",\"publisher\":{\"@id\":\"https:\/\/glabridinchina.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/glabridinchina.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/glabridinchina.com\/#organization\",\"name\":\"Shaanxi Huatai Bio-Fine Chemical Co., Ltd.\",\"url\":\"https:\/\/glabridinchina.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/glabridinchina.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2024\/10\/\u516c\u53f8LOGO.webp\",\"contentUrl\":\"https:\/\/glabridinchina.com\/wp-content\/uploads\/2024\/10\/\u516c\u53f8LOGO.webp\",\"width\":1278,\"height\":783,\"caption\":\"Shaanxi Huatai Bio-Fine Chemical Co., Ltd.\"},\"image\":{\"@id\":\"https:\/\/glabridinchina.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/glabridinchina.com\/#\/schema\/person\/1fc9183390cde309170faf98dbabcaab\",\"name\":\"Huatai\",\"url\":\"https:\/\/glabridinchina.com\/fr\/author\/huatai\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"How to Stabilize Glabridin in Cosmetic Formulations | Huatai Bio-Fine Chemical","description":"A complete stabilization protocol for glabridin in cosmetic formulations: temperature control, antioxidant system design, metal chelation, pH management, and packaging. From Huatai, manufacturer of high-purity glabridin since 2008.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/glabridinchina.com\/fr\/how-to-stabilize-glabridin-in-cosmetic-formulations\/","og_locale":"fr_FR","og_type":"article","og_title":"How to Stabilize Glabridin in Cosmetic Formulations","og_description":"A complete stabilization protocol for glabridin in cosmetic formulations: temperature control, antioxidant system design, metal chelation, pH management, and packaging. From Huatai, manufacturer of high-purity glabridin since 2008.","og_url":"https:\/\/glabridinchina.com\/fr\/how-to-stabilize-glabridin-in-cosmetic-formulations\/","og_site_name":"Shaanxi Huatai Bio-Fine Chemical Co., Ltd.","article_published_time":"2026-06-05T01:48:34+00:00","article_modified_time":"2026-06-05T02:30:02+00:00","og_image":[{"url":"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png","type":"","width":"","height":""}],"author":"Huatai","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Huatai"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#article","isPartOf":{"@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/"},"author":{"name":"Huatai","@id":"https:\/\/glabridinchina.com\/#\/schema\/person\/1fc9183390cde309170faf98dbabcaab"},"headline":"How to Stabilize Glabridin in Cosmetic Formulations","datePublished":"2026-06-05T01:48:34+00:00","dateModified":"2026-06-05T02:30:02+00:00","mainEntityOfPage":{"@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/"},"wordCount":1609,"publisher":{"@id":"https:\/\/glabridinchina.com\/#organization"},"image":{"@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#primaryimage"},"thumbnailUrl":"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png","articleSection":["Troubleshooting &amp; FAQ"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/","url":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/","name":"How to Stabilize Glabridin in Cosmetic Formulations | Huatai Bio-Fine Chemical","isPartOf":{"@id":"https:\/\/glabridinchina.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#primaryimage"},"image":{"@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#primaryimage"},"thumbnailUrl":"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png","datePublished":"2026-06-05T01:48:34+00:00","dateModified":"2026-06-05T02:30:02+00:00","description":"A complete stabilization protocol for glabridin in cosmetic formulations: temperature control, antioxidant system design, metal chelation, pH management, and packaging. From Huatai, manufacturer of high-purity glabridin since 2008.","breadcrumb":{"@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#primaryimage","url":"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png","contentUrl":"https:\/\/glabridinchina.com\/wp-content\/uploads\/2026\/06\/glabridin_thermal_stability.png"},{"@type":"BreadcrumbList","@id":"https:\/\/glabridinchina.com\/how-to-stabilize-glabridin-in-cosmetic-formulations\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/glabridinchina.com\/"},{"@type":"ListItem","position":2,"name":"How to Stabilize Glabridin in Cosmetic Formulations"}]},{"@type":"WebSite","@id":"https:\/\/glabridinchina.com\/#website","url":"https:\/\/glabridinchina.com\/","name":"Shaanxi Huatai Bio-Fine Chemical Co., Ltd.","description":"Huatai Bio-Fine Chemicals: ISO-certified manufacturer of high-purity skincare ingredients like Glabridin and Tranexamic Acid. Offering flexible supply with full documentation for brands &amp; OEMs worldwide.","publisher":{"@id":"https:\/\/glabridinchina.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/glabridinchina.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/glabridinchina.com\/#organization","name":"Shaanxi Huatai Bio-Fine Chemical Co., Ltd.","url":"https:\/\/glabridinchina.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/glabridinchina.com\/#\/schema\/logo\/image\/","url":"https:\/\/glabridinchina.com\/wp-content\/uploads\/2024\/10\/\u516c\u53f8LOGO.webp","contentUrl":"https:\/\/glabridinchina.com\/wp-content\/uploads\/2024\/10\/\u516c\u53f8LOGO.webp","width":1278,"height":783,"caption":"Shaanxi Huatai Bio-Fine Chemical Co., Ltd."},"image":{"@id":"https:\/\/glabridinchina.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/glabridinchina.com\/#\/schema\/person\/1fc9183390cde309170faf98dbabcaab","name":"Huatai","url":"https:\/\/glabridinchina.com\/fr\/author\/huatai\/"}]}},"_links":{"self":[{"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/posts\/14047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/comments?post=14047"}],"version-history":[{"count":4,"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/posts\/14047\/revisions"}],"predecessor-version":[{"id":14054,"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/posts\/14047\/revisions\/14054"}],"wp:attachment":[{"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/media?parent=14047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/categories?post=14047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/glabridinchina.com\/fr\/wp-json\/wp\/v2\/tags?post=14047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}