... example Polyphenols 20%-99%+EGCG 20%-95%+Catechins 20%-90%+Caffeine 1%-8%Decaffeinated Green Tea ExtractPolyphenols98% ... UVCatechins50%,60%,70%HPLCEGCG80%,85%,90%HPLCCaffeine0.5%HPLCAll combination for Polyphenols, Catechins, ... EGCG and Caffeine,For example Polyphenols 98%+EGCG 50%-70%+ ...