percutaneous absorption of salicylic acid was increased significantly when sorbitan monopalmitate , sorbitan trioleate , poloxamer 231 , poloxamer 182 , polyoxyethylene 4 lauryl ether , polyoxyethylene 2 oleyl ether , or polyoxyl 8 stearate was added to the ointment containing dimethyl sulfoxide , salicylic acid , and white petrolatum .
C0600615
poloxamer
C1572787
poloxamer 182