... 70% ,80%,98% Test Method: HPLC White Willow Bark Extract/Salicin/Salix alba L White Willow Bark ExtractProduct Name : White ... alba LBotanical Source: White Willow BarkPart Used: BarkAppearance: Yellow or white Powder Active Ingredient: SalicinSpecification: Salicin 15%, 25%,50%,70 ... and rheumatism and reducing fevers. Package: 25kg/Fibre Drum, or at customer's requirements Storage: Store in a cool, dry ...