98% Extract. Due to numerous scientific research studies including those from Harvard Medical School, scientists and physicians are researching the many potential health benefits of Resveratrol. Some studies suggest that Resveratrol may have significant therapeutic potential including its apparent ability to positively influence patterns of gene expression. Our Wild & Pure Resveratrol exists how nature intended it to be and is free of toxic chemical pesticides, herbicides, fungicides, synthetic fertilizers, sulfites and does not contain any genetically modified grapes. Non GMO, Free of Toxic Chemical Pesticides, Herbicides, Fungicides, Synthetic Fertilizers and Sulfites. Naturally contains a Full Spectrum of Polyphenols, Proanthocyanidins (OPC's), Anthocyanins and Flavonoids. 100% Vegetarian.