Tridecyl Salicylate Buono Umettante Idratare Tridecyl Salicylate description Tridecyl salicylate is a salt form of salicylic acid (BHA). When it is no longer an acid (as in this case), it no longer has exfoliating properties. This synthetic ingredient functions as a skin-softening agent. Related ingredients: BHA (Beta Hydroxy Acid) Salicylic Acid