green tea extract, green tea catechins, tea polyphenols, egcg, epigallocatechin gallate,green tea capsule, tea polyphenol capsule. egcg series（bcy-ct001）; polyphenols 98 series（bcy-ct002）; polyphenols 95 series（bcy-ct003）; polyphenols 90 series（bcy-ct004）; polyphenols 80 series（bcy-ct005）; polyphenols 70 series（bcy-ct006）; polyphenols 60 series（bcy-ct007）; polyphenols 50 series（bcy-ct008）; polyphenols 40 series（bcy-ct009）; tea caffeine（bcy-ct010）; instant tea powder（bcy-ct011）instant green tea powder, instant black tea powder, instant sheng tea powder, instant oolong tea powder, instant pu erh tea powder; l-theanine（bcy-ct012）; tea yellow pigment(typ)（bcy-ct013）; tea polysaccharide(tps)（bcy-ct014）; tea saponin（ bcy-ct015）; other tea extract（bcy-ct016）whiter tea extract, black tea extract, oolong tea extract. tea polyphenols is tested by uv-vis, tea catechins and caffeine are tested by hplc. some special specification products can be produced according to customers' requirements.