... ingredient] Tea polyphenol[Specification] (1)Tea polyphenols>98%,Catechin>90%,EGCG 60-70%,caffein<0.5% (2)Tea polyphenols>95%,Catechin70 ... -80%,EGCG 45-50%,caffein0.5-9% (3)Tea polyphenols>80%,Catechin ... -30%,caffein1-11% (5)Tea polyphenols>30-50%,Catechin10-40%,EGCG 8-20%,caffein1-10%[Assay]UV[Characters]Light yellow to ...