Green Tea Extract

Botanical Antioxidant

Also known as: Camellia Sinensis Leaf Extract, EGCG, Epigallocatechin Gallate, Green Tea Polyphenols

Description

Green tea extract is derived from the leaves of Camellia sinensis. It is rich in polyphenols called catechins, with epigallocatechin-3-gallate (EGCG) being the most abundant and biologically active. It is one of the most well-researched botanical antioxidants in dermatology, with demonstrated benefits against photoaging, acne, and oxidative stress. [Katiyar 2011]

Mechanism of Action

EGCG and other catechins neutralize reactive oxygen species (ROS) and chelate transition metals, preventing oxidative damage to cellular components. EGCG inhibits 5α-reductase, reducing sebum production. It suppresses NF-κB activation, decreasing pro-inflammatory cytokine release. Anti-angiogenic properties via VEGF inhibition contribute to reducing rosacea-related erythema. Catechins also inhibit matrix metalloproteinases (MMPs), protecting collagen and elastin from degradation. [Katiyar 2011]

Indications

Available Concentrations

0.5%1%2%5%

Side Effects

  • Mild irritation (rare) [Katiyar]
  • Contact sensitization (very rare)
  • Green tinting at very high concentrations

Contraindications

  • Known allergy to Camellia sinensis

Pregnancy Category

Not classified (topical use generally considered safe)

Found In

Cosmetics containing Green Tea Extract

Beauty of Joseon Relief Sun Rice + Probiotics SPF 50+ PA++++Beauty of JoseonDeconstruct Pore Control Serum — 2% Salicylic Acid + 3% NiacinamideDeconstructDot & Key CICA Calming Mattifying Sunscreen SPF 50 PA++++Dot & KeyDot & Key 10% Glycolic Acid Glow SerumDot & KeyMinimalist 2% Salicylic Acid SerumMinimalistPilgrim 2% Alpha Arbutin & 3% Vitamin C Brightening Face SerumPilgrimPlum Green Tea Pore Cleansing Face WashPlum

Related Conditions

Acne Vulgaris Anti-inflammatory and antioxidant adjunct Rosacea Antioxidant — reduces UV-triggered flares Photoaging Polyphenol antioxidant — UV damage protection

References

  1. Katiyar SK. "Green tea prevents non-melanoma skin cancer by enhancing DNA repair." Arch Biochem Biophys, 2011. doi:10.1016/j.abb.2010.11.015
  2. OyetakinWhite P, Tribout H, Baron E. "Protective mechanisms of green tea polyphenols in skin." Oxid Med Cell Longev, 2012. doi:10.1155/2012/560682

Limitations

This page provides a general overview of Green Tea Extract in dermatology. It does not cover every possible use, formulation, or interaction. Individual responses to compounds vary — what works for one person may not work for another. Always consult a qualified dermatologist before starting or changing any treatment.