
Milk Thistle Extract, derived from the seeds of Silybum marianum, is a highly potent botanical active standardized for its main component, Silymarin, a powerful complex of flavonolignans. In skincare, it provides exceptional benefits by offering superior photoprotective defense against UV and environmental damage, exhibiting strong anti-inflammatory and soothing properties, and delivering robust, multi-pathway antioxidant action. It is a premium, clinical-grade ingredient for advanced anti-aging, sensitive, and sun-damage repair formulations.
| INCI Name | Silybum Marianum (Milk Thistle) Extract |
|---|---|
| CAS No. | 84604-20-6 |
| Origin | Extracted from Milk Thistle Seeds |
| Appearance | Brownish yellow to yellow-brown powder |
| Active Ingredient | Silymarin ≥ 80% (customizable) |
| Odor | Mild plant-like odor |
| Solubility | Soluble in ethanol and propylene glycol; slightly soluble in water |
| Recommended Usage | 0.1% – 2% (depending on formulation) |
Clinically proven to reduce skin sensitivity markers by 40% within 48 hours, while delivering superior photoprotective efficacy—neutralizing UV-induced free radicals and inhibiting inflammatory cytokine release with zero risk of rebound or irritation.
In the advanced landscape of clinical photoprotection and barrier-repair skincare, delivering potent antioxidant defense without triggering surface reactivity is the ultimate formulation challenge. As a specialized high-purity cosmetic active ingredient manufacturer established in 2008, Shaanxi Huatai Bio-Fine Chemicals Co. delivers a premium Milk Thistle Extract rigorously standardized to high-purity Silymarin, engineered to completely remove residual impurities. Built to be 100% farnesol-free, it establishes a flawless safety profile that eradicates the risk of ingredient-induced sensitization. By functioning as a high-potency, biphenol-rich botanical modulator, this ultra-pure active provides professional-grade cellular DNA protection, anti-inflammatory suppression, and intensive structural revitalizing for even the most hyper-reactive, compromised skin.
For Global OEM/ODM Innovators: Achieve ultimate formulation elegance and precision. Our high-purity Milk Thistle Extract is engineered for superior stability in glycol and oil phases, ensuring seamless integration into your high-performance delivery systems, including anti-pollution serums, UV-recovery creams, and intensive barrier-repair balms. It offers exceptional stability across a wide pH range, ensuring your R&D teams can deliver consistent, reliable performance across complex multi-active formulations without manufacturing friction. Its refined, odorless, and color-neutral profile guarantees it will never interfere with your brand’s signature product aesthetics.
For High-End Beauty Brands: Elevate your market positioning and clinical claims. This ultra-pure, standardized bioactive is the signature choice for strict “Clean Beauty” mandates and highly tolerable “SOS Emergency Repair” formulations. Empower your brand to market “Professional-Grade Cellular Photoprotection,” “Chronic Redness Modulation,” and “Environmental Defense” without the risks linked to synthetic additives. Capture the fierce loyalty of consumers demanding highly potent, non-sensitizing clinical solutions that deliver flawless skin uniformity, profound environmental resilience, and essential everyday structural defense.
Appearance: Refined, high-purity active powder (optimized for aesthetic integration)
Active Content: Standardized to ≥ 80.0% Silymarin (HPLC verified for maximum antioxidant and inflammatory suppression power)
Heavy Metals: < 10 ppm
Arsenic: < 1 ppm
Recommended Dosage: 0.2% – 1.5% (Highly potent for daily environmental protection and intensive barrier repair)
pH Stability: Highly stable across the optimal pH range of 4.0 – 7.0
Processing Guidelines: Highly lipophilic. Incorporate into the oil phase or solubilize in a suitable glycol carrier prior to emulsification. Compatible with most cosmetic systems, including Ferulic Acid, Vitamin E, and hydrating complexes.
Provide your R&D laboratory with an instant blueprint for market success. Our Milk Thistle Extract acts as a supreme biological defense engine, protecting and amplifying the restorative efficacy of companion actives:
Milk Thistle + Ferulic Acid: The ultimate “Environmental Shield” matrix. Combines the targeted antioxidant protection of Silymarin with the stabilization and free-radical-scavenging power of Ferulic Acid to create a non-negotiable defense against urban oxidative stress, preventing photo-aging before it begins.
Milk Thistle + Panthenol: A comprehensive “SOS Barrier Rescue” and structural conditioning system. Panthenol floods the stratum corneum with deep, targeted hydration, creating a healthy, non-reactive environment that allows Silymarin to effectively penetrate and stabilize cell membranes without triggering tightness.
Milk Thistle + Ceramide NP: The absolute structural longevity and “Clean Beauty Defense” complex. While Milk Thistle Extract works fundamentally from within to neutralize UV-induced inflammatory cytokines, Ceramide NP safely and physically rebuilds the skin’s depleted lipid cement on the surface, ensuring a resilient, calm, and perfectly defended skin barrier.
Formulate with absolute regulatory confidence. We strictly adhere to global cosmetic safety benchmarks, ensuring our active ingredients pass the most stringent toxicological assessments. Our state-of-the-art manufacturing facility operates under the highest global standards, fully certified by:
ISO9001
ISO22000
COSMOS
HALAL
IQNET
Every batch is supported by a comprehensive technical dossier to streamline your global compliance, supply chain transparency, and regulatory filing processes.
Stop compromising on formula stability, volatile botanical extracts, and ingredient-induced irritation. Protect your consumers and elevate your product lines with the global standard in highly stable, non-sensitizing clinical environmental defense actives.
Claim your High-Purity Sample Now and upgrade your next blockbuster SOS repair formula! Contact our technical sales team immediately to secure your free lab sample, request a customized bulk quote, and access the full Technical Dossier (TDS, MSDS, COA, and Clinical Efficacy Reports).
Huatai Bio provides a comprehensive portfolio of high-efficacy cosmetic active ingredients, empowering global brands to create next-generation skincare formulations for high-end skincare formulation needs.
Comprehensive Solutions & Innovation: Our categories cover the full spectrum of market requirements: Anti-aging & Firming, Oil-Control & Anti-acne, Anti-inflammatory & Soothing,Antioxidant Defense, Brightening,and Hydration & Barrier Repair.We offer both established classics and cutting-edge actives.
Driven by a passion for scientific excellence, our state-of-the-art R&D laboratory is dedicated to exploring the frontier of bio-active molecules. Beyond supplying ingredients, we offer end-to-end formulation consultancy and customized solution development. Our team of expert chemists works closely with your brand to overcome complex stability issues and sensory challenges, ensuring your final product stands out in a competitive global market.
Uncompromising Quality & Credibility:We ensure every batch of our Active skincare ingredients meets rigorous quality standards, including COSMOS, ISO 9001/22000, and HALAL Certification. This commitment, backed by a complete Technical Dossier, offers clinically-backed solutions and guaranteed compliance for every formulation challenge.




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