Grape Seed Powder Extract Proanthocyanidins 95% Polyphenol 75%, 80%, 90% ... cancer, premature senility, arthritis, hypertension, diabetes.Product name: Grape seedLatin name : Vitis vinifera L. Active Ingredient: AnthocyaninSpecification: ... by the ultraviolet radiation.As a professional herbal extract manufacture in China, we promise to provide ... your attention! 75%, 80%, 90% Grape seed Polyphenols