 The study compares the efficacy of a combined solution of azelaic acid and salicylic acid with trichloroacetic acid 25% peel in controlling mild moderate acne in SBT3-4. After two sessions, both modalities led to significant improvement, but patients reported more discomfort with the TCA-treated side. The study recommends combined SA20% and AA20% for early treatment of inflammatory legions and TCA for non-inflammatory legions.