EGCG是从绿茶中提取的活性成分，其抗氧化活性至少是维生素C的100倍，是维生素E的25倍，是DHA和BHT的2-4倍，能有效保护细胞核DNA免受损害，具有抗衰老、抗炎等生物学活性。EGCG分子量小，透皮吸收性能好且活性稳定。p49-50《皮肤科医师教你选择化妆品》-齐显龙

Epigallocatechin Gallate is a phenolic antioxidant found in a number of plants such as green and black tea. It inhibits cellular oxidation and prevents free radical damage to cells. - https://pubchem.ncbi.nlm.nih.gov/compound/_-_-Epigallocatechin_gallate#section=Top

EGCG is the magic ingredient in green tea. It's the most active polyphenol that green tea owes most of its magic properties to. It's a fantastic antioxidant, anti-inflammatory and anticarcinogenic agent. Be happy, if you spot it on the ingredient list.