Epigallocatechin Gallate

Epigallocatechin Gallate (EGCG) is the most abundant and potent catechin found in Green Tea (Camellia sinensis). It is a phenomenal multi-functional active renowned for its extraordinarily high antioxidant capacity, offering superior defense against UV and environmental damage. EGCG also exhibits powerful anti-inflammatory, oil-regulating, and collagen-protective effects, making it a versatile ingredient for anti-aging, acne, and sensitive skin formulations.

INCI Name

Epigallocatechin Gallate (often listed as part of Camellia Sinensis Leaf Extract)

CAS No.

970-74-1

Source

Green Tea (Camellia sinensis) Leaf Extract

Appearance

White to light brown powder

Core Function

Antioxidant, Anti-inflammatory, Sebum Regulation, UV Damage Mitigation, Collagen Preservation

1. Product Overview & Market Relevance

EGCG is recognized as one of the most clinically relevant molecules in botanical skincare, with its antioxidant power far exceeding that of many traditional vitamins. The strong consumer demand for effective, naturally derived “superfoods” and “clean beauty” actives firmly establishes EGCG as a premium ingredient in formulations targeting skin defense, visible inflammation, and sebum control.

2. Technical Highlights and Critical Parameters

2.1 Mechanism of Action

  • Extreme Antioxidant: Possesses a highly reactive chemical structure that efficiently and rapidly scavenges various free radicals and Reactive Oxygen Species (ROS).

  • Anti-Inflammatory Cascades: Directly inhibits several inflammatory enzymes (like COX-2 and LOX) and suppresses pro-inflammatory signaling pathways (like NFkB), effectively calming redness and irritation.

  • Sebum Control: Shows promise in reducing sebum excretion by targeting the androgen receptor pathway in sebocytes, making it excellent for oily and acne-prone skin.

  • Photoprotection: Mitigates the immunosuppressive and damaging effects of $text{UV}$ radiation on skin cells, protecting cellular DNA and structure.

2.2 Standard Technical Specifications

ParameterSpecification (High Purity Grade)
Purity≥90% (HPLC)
Molecular Weight458.37 g/mol
Recommended Dosage0.5%-3.0% (as standardized extract)
SolubilityWater soluble (requires specific formulation for optimal stability)
StabilityHighly unstable (sensitive to high pH, heat, and oxidation)
StorageCool, dark, dry, inert atmosphere preferred for powder

3. Market Positioning and Core Advantages

  • Scientifically Proven Potency: Backed by substantial clinical research confirming its efficacy across multiple skin concerns (acne, aging, sun damage).

  • Aesthetic Benefits: Provides visible calming and reduction in redness, offering instant gratification to users with irritated skin.

  • Holistic Skin Solution: Addresses the root causes of both aging (oxidation) and acne (inflammation and sebum), offering broad market appeal.

  • Natural Origin: Derived from one of the most trusted and globally recognized botanical sources (Green Tea).

4. Formulation Guidelines

  • Integration Phase: EGCG is water soluble. It must be dissolved in the aqueous phase. To maximize stability, it should be added in the cooling phase (below 40°C).

  • Concentration: Usage ranges from 0.5% to 3.0% of the high-purity powder/standardized extract for functional claims.

  • Stability Management: EGCG is highly prone to oxidation, especially at a high pH (above 7.0). Optimal formulation pH is typically slightly acidic (4.0 – 6.0). Co-antioxidants like Vitamin C derivatives or Ferulic Acid are crucial stabilizers.

  • Aesthetics: The powder can impart a light brownish color to the final product.

5. Quality Assurance and Regulatory Confidence

Our quality and safety credentials include:

  • COSMOS (Natural and Organic Cosmetic Standard)

  • ISO 9001 Quality Management System

  • ISO 22000 Food Safety Management System

  • HALAL Certification

  • IQNET (The International Certification Network)

  • Technical Dossier (Certificate of Analysis – COA, Technical Data Sheet – TDS, Material Safety Data Sheet – MSDS)

6. Typical Applications

  • Acne & Oily Skin Serums: Targeted formulas for sebum control, pore refinement, and anti-inflammation.

  • Daily Antioxidant Protection: Serums and creams for morning use to fight environmental damage.

  • Soothing & Redness Relief: Treatments for sensitive, compromised, or irritated skin.

  • Anti-Photoaging Formulas: Products designed to mitigate the cumulative effects of UV exposure.

7. Scientific Evidence Summary

  • Anti-Inflammatory Power: Extensive studies show EGCG‘s efficacy in suppressing inflammatory signaling molecules relevant to acne, rosacea, and general skin irritation.

  • Sebocyte Control: Research confirms its ability to reduce the size and lipid production of sebaceous glands, a key factor in controlling oily skin.

  • DNA Protection: In-vitro data supports its protective effect on skin cell DNA against UV induced damage, highlighting its photoprotective role.

8. Frequently Asked Questions

Q1: Why is EGCG considered unstable, and how can it be stabilized?

A: EGCG is highly susceptible to oxidation in water, especially at neutral or high pH. Stability is best achieved by formulating in slightly acidic pH, using specialized delivery systems (e.g., liposomes), and combining it with synergistic antioxidants like Ferulic Acid.

Q2: Is EGCG just another name for Green Tea Extract?

A: No. EGCG is the specific, single most potent catechin within Green Tea Extract. Sourcing pure, standardized EGCG powder ensures superior potency and reliable results compared to using a non-standardized raw leaf extract.

Q3: Does EGCG increase sun sensitivity?

A: No. EGCG is photoprotective. When used topically before sun exposure (underneath sunscreen), it is highly effective at reducing the oxidative damage caused by UV light. It should be used daily for its defense benefits.

 

Source our ≥90% Purity Epigallocatechin Gallate for stable, high-efficacy multi-functional defense, superior anti-inflammation, and advanced acne and anti-aging formulations.

🔒 Get Your Technical Dossier: Access TDS, MSDS, COA, and Clinical Efficacy Reports.

🔬 Apply for a Free Sample: Test the stable, high-efficacy immune-boosting power of Epigallocatechin Gallate today.

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Shaanxi Huatai Bio-Fine Chemicals Co., Ltd. is a specialized manufacturer of advanced Functional Skincare Ingredients, providing scalable wholesale solutions for global beauty brands. We offer high-purity bulk supplies of Glabridin (brightening), Licochalcone A (anti-acne), Totarol, and Dipotassium Glycyrrhizinate. With tailored concentrations (1%–99%) and comprehensive OEM capabilities, our ISO 9001/22000 and COSMOS certified facilities guarantee premium cosmetic-grade quality for every wholesale order.

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