Ingredient Encyclopedia

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Discover what’s inside your skincare — from retinol to aloe vera — with clear guides on benefits, uses, and safety.

Ingredient Encyclopedia

Green Tea Leaf Extract – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Green Tea Leaf Extract (Camellia Sinensis Leaf Extract) is the gold-standard and most researched expression of green tea science, acting as a versatile antioxidant backbone for daily environmental defense. Rich in polyphenolic catechins, most notably EGCG, it provides proven radical-scavenging activity while balancing oil production and soothing visible redness. Typically used at 0.5–5%, it functions as a protective anchor in modern routines, shielding the skin from urban pollution and oxidative stress without the heaviness of oils or the potential sting of high-potency isolates. Its fresh, water-soluble profile makes it exceptionally compatible with oily and acne-prone skin, offering calm comfort while maintaining a breathable finish. While immediate soothing is often felt, the true value of the leaf extract is long-term resilience; consistent use over a 4-to-8-week timeline results in a more balanced, defended, and stable skin baseline that better tolerates environmental shifts and active-heavy regimens.