Which of the following is not an agent used in chemical peeling?: (A) Glycolic acid, (B) Kojic acid, (C) Phenol, (D) Salicylic acid
Answer is B. Kojic acid is a fungal metabolite known to inhibit tyrosinase is used as a depigmenting cream. All the others are peeling agents. Ref: Rook's textbook of dermatology, 8th edition, Pg 73.28.