... . Specification: Product name SpecificationGTP-99%Polyphenols³99%, Catechins³99%, EGCG³98%, Caffeine<0.05%GTP-99%Polyphenols³99%, Catechins³98%, EGCG³95 ... %, Caffeine<0.1%GTP-99%Polyphenols³99%, Catechins³90%, EGCG³70%, Caffeine<1% GTP-99%Polyphenols³99%, Catechins³80%, EGCG³60 ... %, Caffeine<1% GTP-99%Polyphenols³99%, Catechins³80%, EGCG³50 ...