<prompt> Chemical peeling is done by all exceptTrichloroacetic acidphosphoric acidCarbolic acidKojic acid  <response>: chemical peel:-Simple office procedure in which a chemical agent of defined strength is selected according to requirement and applied on skin in controlled manner. Followed by peeling of skin.Agents used:-Glycolic acid Lactic acidMandelic acid Salicylic acidTCAKojic acid Pyruvic acidJessners solution Retinoic acidResorcinol and phenol. Reference: IADVL textbook of dermatology,page 1679 