Name Green Tea P.E. Source Plant extract of the bud and the leaf of the Camellia sinensis o.ktze. Ingredients Tea-leaf contains alkaloid mainly include thecaffeine, the content is 1-5% and Theobromine, Theophylline And xanthine.Green tea contains polypheols compound about 10-24% .Because ferment for many times so thepolypheols compound redueced, just about 6% .In the tea leaf mainly contains Gall-lepigallocatecholand a little epigallocatechol and epigallocatechin EGC , L-epicatechinEC and so on.Various tea on sale, caffeine is about 2-4% and the polypheols is about 12-15% additionally about 0.6% essential oil, is the aroma scent in Green tea. Effective parts Buds and leaves Molecular structure Specification and test method Polypheols( UV) 30% -99% Physical & chemic character Appearance light brown powder with characteristic odor. Function . Strong function to eliminate harmful free radical. . Standing against the caducity. . Standing against the radiation . Inhabit the cancer cell . Antibiosis and sterilization