PureBulk Resveratrol 98%, 50g (1.764oz)

What the brand says

You are buying Trans-Resveratrol which is a polyphenolic antioxidant produced in the skin of red grapes, certain berries and other plants. Pure Bulk's Resveratrol powder is standardized to contain at least 98% trans resveratrol and is derived from Polygonum cuspidatum, also known as Japanese Knotweed. *NOTE: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.