Specification : Resveratrol 20%, 50%, 95%, 98%, 99% 100% Natural GMP Kosher Free sample Resveratrol 1.100% Natural 2.GMP Kosher 3.FREE sample4.Polygonum Cuspidatum Extract Resveratrol 20%~99%Product Specification : 1.Resveratrol 20%, 50%, 70%, 95%, 98%, 99%2.Latin Name: Polygonum Cuspidatum3.Product Type: White powdered extract4.Part of the Plant Used: Root & Rhizome5.Extract Method: Grain ...