What is Green Tea Extract EGCG?
Green Tea Extract EGCG (Epigallocatechin Gallate, CAS 989-51-5) is the most abundant and biologically active catechin polyphenol found in Camellia sinensis leaves. As the primary antioxidant driving green tea’s celebrated health profile, standardized EGCG powder typically appears as a fine pale tan-green powder and is supplied at 50%–98% purity depending on formulation needs. In cosmetic applications it is commonly referenced alongside the INCI designation Camellia Sinensis Leaf Extract.
Global demand for high-purity EGCG continues to climb across nutraceutical and cosmeceutical markets, propelled by the clean-label movement and rising consumer interest in plant-derived antioxidants for both ingestible and topical wellness products.
Mechanism of Action
EGCG delivers protection through complementary pathways. Its multiple phenolic hydroxyl groups directly scavenge reactive oxygen and nitrogen species, while its strong metal-chelating ability (binding Fe²⁺ and Cu²⁺) suppresses the Fenton reaction that generates hydroxyl radicals. Simultaneously, EGCG down-regulates pro-inflammatory mediators such as COX-2, iNOS, and NF-κB, calming oxidative stress at the cellular level.
In skin tissue, EGCG inhibits matrix metalloproteinases (MMP-1, MMP-3, MMP-9) that degrade collagen and elastin, helping preserve firmness and tone. In metabolic pathways, it activates AMPK and supports healthy lipid metabolism — the basis for its use in weight-management and cardiovascular formulations.
Key Application Areas
- Anti-Aging & Brightening Skincare: Neutralizes free radicals, reduces UV-induced damage, and evens skin tone in serums and creams.
- Nutricosmetics & Beauty-from-Within: Formulated into capsules, gummies, and powders for daily antioxidant defense.
- Weight Management & Metabolic Support: Supports fat oxidation and AMPK activity in lifestyle supplements.
- Cardiovascular & Wellness Supplements: Helps maintain healthy cholesterol and endothelial function.
- Functional Foods & Beverages: Added to RTD teas, fortified waters, and powdered drink blends.
VeraVita Supply & Partnership
VeraVita Biotech supplies high-purity Green Tea Extract EGCG at standardized specifications of ≥98% EGCG (also available at 50%/90% grades). Every lot is delivered with a full COA and MSDS, and we provide flexible OEM/ODM support for capsules, tablets, and private-label blends. Contact our sourcing team at info@veravitabio.com for samples, specifications, and competitive B2B pricing.