... Resveratrol Plant source Lycopodium Serratum Thunb P.E. Extract parts rootstock Active ingridients Resveratrol ,Trans-Resveratrol CAS ... ),70.0%, 98.0%/99.0% (off-white)(HPLC), Chemical name 3,4',5-Trihydroxy-trans-stilbene ... Characters brown or Off-white crystalline powde;smell poculiar,light;dissolved in carbinol ... issue. 100% Natural Resveratrol Polygonum Cuspidatum Extract