Detailed Product Description
Polyphenols > 30%
Extract from White Grape Skin
Brown red powder
High quanlity
Extract from White Grape Skin
Brown red powder
High quanlity
Resveratrol which is extracted from Grape Skin
Available Specification
Polyphenols > 30%
Bioavailability
Questions on the relationship between health benefits and polyphenols generally revolve around
Compared with the effects of polyphenols in vitro, the effects in vivo, although the subject of ongoing research, are limited and vague. The reasons for this are 1) the absence of validated in vivo biomarkers, especially for
bioavailability.[53]inflammation or carcinogenesis; 2) long-term studies failing to demonstrate effects with a mechanism of action, specificity or efficacy; and 3) invalid applications of high, unphysiological test concentrations in the in vitro studies, which are subsequently irrelevant for the design of in vivo experiments.[54] In rats, polyphenols absorbed in the small intestine[55] may be bound in protein-polyphenol complexes modified by intestinal microflora enzymes,[56] allowing derivative compounds formed by ring-fission to be better absorbed.
Ligh yellow brown
High quanlity
High quanlity