White Willow Bark Extract/Salicin/Salix alba L Specification: Salicin 15%, 25%,50%,70% ,80%,98% Test Method: ... HPLC White Willow Bark Extract/Salicin/Salix alba L White Willow Bark ExtractProduct Name : White Willow Bark ExtractLatin Name ... Willow Bark contains salicin, which the body converts to salicylic acid and has the same effect on the body as aspirin ...