Epigallocatechin gallate (EGCG) is a type of catechin, a natural phenol and antioxidant found predominantly in green tea. It is known for its health benefits, including anti-inflammatory, anti-cancer, and cardioprotective properties. EGCG contributes to the astringent taste of green tea and is responsible for many of its health-promoting effects. It has been studied for its potential role in weight management, metabolic health, and as a neuroprotective agent. The compound is also recognized for its ability to scavenge free radicals, thus protecting cells from oxidative stress.