... , Salicin,acesodyne, salicylic acid, allay fever, diminish inflammation, Salix alba (white willow; willow bark ) extract ,Ingredient: Salicin; Salicylic acid .Function: ... The bark is often in ethanol to produce a . The active extract of the bark, called , after the Latin name Salix ... remedy for everything from pain relief to fevers. Today, white willow bark is often used as a natural alternative to ...