... E. Specification ProductSpecificationGTP-99%Polyphenols³99%, Catechins³99%, EGCG³98%, Caffeine<0.05%GTP-99%Polyphenols³99%, Catechins³98%, EGCG³95 ... 90%, Catechins³70%, EGCG³40%, Caffeine<12%GTP-80%Polyphenols³80%, Catechins³60%, EGCG³30%, Caffeine<10%GTP-70%Polyphenols³70%, ... Catechins³50%, EGCG³20%, Caffeine<10%Product promise: all our products are extracted and washed ...