Epigallocatechin gallate (EGCG) is a strong polyphenol catechin antioxidant found in green tea, reported to have broad efficacy against many conditions generated from oxidative damage. EGCG strongly and directly inhibits telomerase in cell-free systems and in cancer cell lines. Protects cells from lipid peroxidation and DNA damage induced by reactive free radicals. Inhibits inducible nitric oxide synthase (iNOS