6
Powder Grades
COSMOS
N°277614
99.3%
Purity (Intertek)
1g
Min. Order

Glabridin Powder Grades Explained: 40%, 90%, 98%, 99%

Glabridin powder is available in multiple purity grades, each with different physical properties, solubility options, and use levels. Choosing the wrong grade for a formulation system leads to compatibility problems, stability issues, or unnecessary cost.

Here is how the main grades compare:

GradeFormSolubilityRecommended Use LevelShelf LifeCOSMOS
40% (white)White powderAlcohol-soluble0.1%–1.0%24 months
40% (reddish-brown)Reddish-brown powderAlcohol-soluble0.1%–1.0%24 months
90% (alcohol-soluble)White powderAlcohol-soluble0.01%–0.5%24 months
90% (oil-soluble)White powderOil-soluble~0.2% (adjust per system)24 months
98%White powderAlcohol-soluble0.01%–0.5%24 months
99%White powderAlcohol-soluble0.01%–0.5%24 months

A few points worth noting:

  • The 40% grade comes in two SKUs — white and reddish-brown. Both have the same assay content and alcohol-soluble profile. The color difference is mainly due to a higher degree of decolorization in the white grade, resulting in lower color-related compounds; the reddish-brown grade retains more of the natural color components from the raw material. The white grade is preferred for light-colored or visually sensitive formulations (e.g., clear serums, essences, pale emulsions), while the reddish-brown grade is more suitable for darker or opaque systems where color impact is less critical.
  • The 90% oil-soluble grade is a distinct product from the alcohol-soluble 90%. It uses a patented process to restructure glabridin into uniform 50 μm spherical particles, allowing stable dispersion in anhydrous systems, face oils, and O/W emulsion oil phases. Recommended usage level is around 0.2% in typical oil-phase systems; adjust based on formulation system and target glabridin concentration.
  • There are also 1%–5% liquid grades (both alcohol-soluble and water-soluble) and a 10% water-soluble powder produced via HP-β-cyclodextrin inclusion complex technology, suited to aqueous systems where a pre-dissolved format is preferred.

All grades are tested by HPLC. Purity figures on COAs reflect actual glabridin content, not total extract.

How to Choose the Right Grade for Your Product

Grade selection comes down to three factors: formulation system, target active level, and formula color requirements.

By Formulation System

  • Water-based toners, essences, hydrogels → 10% water-soluble powder, or 1%–5% water-soluble liquid
  • Hydroalcoholic systems (toners, mists) → 1%–5% alcohol-soluble liquid, or 40%/90%/98% powder dissolved in a polyol phase
  • O/W emulsions (oil phase addition) → 90% oil-soluble powder
  • Anhydrous systems, face oils, lip care → 90% oil-soluble powder
  • Clinical, luxury, or high-assay products → 98% powder

By Target Active Level and Cost

Higher-purity grades require a lower use level to achieve the same active concentration in the finished formula. At comparable active delivery, the cost difference between grades narrows significantly. For OEM brightening serum actives where cost per batch matters, the 40% grade is often the practical choice for mass-market formulas. For premium or clinical positioning, 98% offers precise dosing at low use levels.

Formula Color

If finished product appearance is critical — especially in serums, essence toners, and light emulsions — specify white powder grades (40% white, 90%, 98%) and avoid reddish-brown variants.

What Affects Glabridin Powder Pricing?

Understanding what drives glabridin price helps procurement teams make like-for-like comparisons between suppliers.

1. Purity grade
Higher purity requires more processing steps and greater raw material input per kilogram of finished product. 98% grades are priced higher than 40% due to the additional purification stages involved.

2. Raw material origin and supply chain
Glabridin is extracted from Glycyrrhiza glabra (licorice root). Suppliers with secured upstream sourcing — direct grassland management, long-term harvest contracts — tend to offer more stable pricing than those buying spot material. Harvest conditions in Central Asia, where the highest-quality licorice is grown, affect seasonal price fluctuations.

3. Order volume
Per-kilogram pricing decreases at higher volumes. Pricing typically scales with order volume — contact the supplier directly for current tier pricing.

4. Certifications included
COSMOS-certified grades carry a modest premium reflecting certification and audit costs. If your brand requires COSMOS compliance, factor this in when comparing quotes — a non-certified lower price is not a like-for-like comparison.

5. Documentation package
Suppliers who provide full batch documentation — COA, HPLC chromatogram, heavy metal report, pesticide residue report — have higher operating costs reflected in pricing. Quotes that appear lower may not include equivalent documentation.

MOQ and Ordering Process

MOQ for glabridin powder varies considerably between suppliers. Traders often have lower minimum quantities because they hold buffer stock; direct manufacturers may set higher minimums for custom or certified grades.

As a direct manufacturer, Huatai Bio accepts orders from 1g across all grades — 40%, 90%, 98%, and 99% — with no enforced minimum. This makes sample qualification straightforward before committing to commercial volumes.

A typical ordering process with a direct glabridin powder supplier runs as follows:

  1. Request sample and COA — qualify the product against your internal specifications before ordering
  2. Submit technical inquiry — specify grade, solubility, quantity, and any certification requirements
  3. Receive quotation — pricing, lead time, packaging options (typically 1kg sealed aluminum foil bags)
  4. Place order and confirm documentation — agree on which documents will accompany the batch (COA, HPLC chromatogram, heavy metals, pesticides, COSMOS certificate if applicable)
  5. Receive shipment and conduct incoming QC — cross-check COA data against your own or third-party retesting

Glabridin for OEM Brightening Formulas

For OEM skincare ingredient supplier contexts, glabridin is typically used in brightening serums, spot correction treatments, and multi-active whitening emulsions. The most common grades specified by OEM formulators are:

  • 40% white powder — typical formulation range for brightening serums is 0.1%–0.5%; cost-efficient for mass-market production
  • 90% alcohol-soluble — typical formulation range 0.05%–0.2% for premium serum formulas requiring precise low-level dosing
  • 90% oil-soluble — for face oil and anhydrous formats where alcohol-soluble grades are not compatible
  • 10% water-soluble — for essence toners and water-based brightening ampoules

When sourcing glabridin powder for OEM brightening serum actives, ensure the supplier can provide grade-specific HPLC chromatograms for each batch, not just a generic COA template. Batch-to-batch consistency matters for OEM operations running repeated production cycles.

Why Choose Huatai Bio

Shaanxi Huatai Bio-Fine Chemical Co., Ltd. has supplied high-purity glabridin powder to OEM manufacturers and cosmetic brands across 30+ countries since 2008.

  • Full grade range: 40% (white and reddish-brown), 90% (alcohol-soluble and oil-soluble), 98%, 99%, custom
  • COSMOS v4 certified (Ecocert Greenlife SAS, N°277614) for 40%, 90%, and 98% grades
  • Intertek-verified purity: 99.3% HPLC (Report SHAH01681145)
  • Full batch documentation per order: COA, HPLC chromatogram, heavy metal report, pesticide residue report
  • No minimum order quantity — samples from 1g, bulk from any volume
  • 24-hour COA and sample turnaround on request

Frequently Asked Questions

What is the difference between glabridin 40% and 98%?
Both are alcohol-soluble white powders, but 98% has undergone additional purification stages to reach a higher active concentration. At comparable active delivery in a formula, 40% is used at a higher percentage (0.1%–1.0%) while 98% is used at a lower percentage (0.01%–0.5%). The practical difference for most formulas is cost per active gram versus dosing precision — 98% offers more precise control at very low use levels.
What is the MOQ for bulk glabridin powder?
MOQ varies by supplier. Huatai Bio accepts orders from 1g across all grades with no enforced minimum. For commercial bulk orders, typical packaging is 1kg sealed aluminum foil bags. Contact the team directly for volume pricing tiers.
How is glabridin powder price calculated?
Glabridin price is primarily driven by purity grade, order volume, and whether COSMOS-certified grades are required. Higher purity grades are priced higher due to the additional processing steps involved. Volume discounts apply at commercial quantities. Documentation requirements also affect the final price.
Can glabridin be used in OEM brightening serum formulas?
Yes — glabridin is widely used in OEM brightening serums, spot correction treatments, and whitening emulsions. The 40% white powder (typical range 0.1%–0.5%) and 90% alcohol-soluble (typical range 0.05%–0.2%) are the most commonly specified grades. Always request batch-specific HPLC chromatograms rather than relying on a generic COA template, especially for recurring production runs.
How do I request a glabridin powder sample?
Contact Huatai Bio via glabridinchina.com or WhatsApp at +86 17868678161. Specify the grade, solubility, and intended application. Samples ship with a batch-specific COA; HPLC chromatograms and third-party test reports can be requested separately.
Request samples, COA, or grade specifications glabridinchina.com · +86 17868678161
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References

  1. Huatai Bio-Fine Chemical — Glabridin Product Grade Matrix (internal specification, May 2026)
  2. Ecocert Greenlife SAS — COSMOS v4 Certificate N°277614-20251216_0226
  3. Intertek Testing Services Ltd., Shanghai — HPLC Purity Report SHAH01681145