Specification : Resveratrol 20%, 50%, 95%, 98%, 99% 100% Natural GMP ... GMP Kosher 3.FREE sample4.Polygonum Cuspidatum Extract Resveratrol 20%~99%Product Specification : 1.Resveratrol 20%, 50%, 70%, 95%, 98%, ... extract4.Part of the Plant Used: Root & Rhizome5.Extract Method: Grain Alcohol6.CAS#: [501-36-0]What is ... maxMould and Yeast100CFU/gmE.ColiNegativeSalmonellaNegative 99% resveratrol extract powder