Effect of green tea polyphenols on human cancer DNA damage and apoptosis: in vitro study

Catechins, the dietetic phytochemicals existing in green tea (Camellia sinensis), are considered to be powerful inducers of cytotoxicity and apoptosis to cancer cells. Epicatechin (EC), Catechin (C), epigallocatechin (EGC) and epigallocatechin-3-gallate (EGCG) are the four primary ingredients of green tea polyphenols (GTPs).