Green Tea

Green tea is one of the most studied botanical actives in cosmetics. It is characterized by its richness in polyphenols, especially catechins: EGCG (EpiGalloCatechin Gallate), ECG (EpiCatechin Gallate), GCG (GalloCatechin Gallate), and EGC (EpiGalloCatechin). These molecules are scientifically documented for several cosmetic interest properties.
Antioxidant properties: green tea polyphenols are linked, according to available data, to protection against oxidative stress. EGCG is one of the most studied catechins for this property, associated with neutralizing various free radicals generated by UV, pollution, and stress. Some studies also link green tea to supporting skin comfort after UV exposure, with visible reduction of redness.
Documented soothing properties: catechins are linked, according to available data, to soothing properties suitable for sensitive or blemish-prone skin, helping visibly reduce irritated skin appearance.
Documented antimicrobial properties: some data associate green tea with antimicrobial properties that may be of interest for oily or blemish-prone skin.
Its tolerance profile is well documented, suitable for different skin types, including sensitive skin exposed to daily external factors.

Sources: Green tea in dermatology, myths and facts, Journal der Deutschen Dermatologischen Gesellschaft, Volume 13 (8), 2015; Protective Mechanisms of Green Tea Polyphenols in Skin, Oxidative Medicine and Cellular Longevity, 2012.