... looking for best and pure medicinal polygonum cuspidate extract capsules, pills, tablets, and suppliement from professional polygonum cuspidate extract manufacturers and suppliers and factory ... Name:Giant Knotweed ExtractSpecification : Water-Soluble Resveratrol 10% 50.0%, 98.0% Resveratrol 98% PolydatinLatin name: Polygonum cuspidatumCAS No.: 501-36-0Constitutional Formula ...