Refined grape polyphenol polyphenol＞90%, oligomer＞60%，monomers 10-15%

Refined Grape Polyphenol (polyphenol content above 90%, with oligomers above 60% and monomers at 10-15%) is a pharmaceutical-grade reddish-brown powder offered by Chenguang Biotech Group Co.,Ltd., which trades rather than manufactures the material. It is readily soluble in both water and alcohol, with an antioxidant capacity (ORAC) above 14,000 μmol TE/g, and is distributed to markets across North America, Europe, Asia, the Middle East and Africa.