Common names: White Willow Bark Extract Specification: 15% salicin, 25% salicin, 50% salicin HPLC Common names White Willow Bark Extract Specification 15% salicin, 25% salicin, 50% salicin HPLCCharacteristics Light brown-yellow powder Plant Origin Salix albaGeneral White willow bark has a long history of use for reducing fever and pain. It was also used to treat inflammation by the ancient ...