Most worthwhile superficial chemical peel for melasma of skin of color: Authors' experience of glycolic, trichloroacetic acid, and lactic peel.

Glycolic acid (GA), lactic acid (LA) and trichloroacetic acid (TCA) peels have been used in various combinations for treating melasma patients, but none of the studies have compared their therapeutic efficacy and improvement in quality of life (QOL) index with these three peeling agents in melasma. Our study aims to compare the clinical efficacy, safety, tolerability and improvement in QOL index between 30% GA, 92% LA, and 15% TCA peeling in epidermal melasma. Ninety patients were divided into three groups with 30 in each. First group was treated with 30% GA peel, second with 92% LA peel, and third with 15% TCA peel at every 2 weeks interval for 12 weeks. Melasma area severity index (MASI) and QOL index (Melasma quality of life and Health related quality of life index) were used for clinical evaluation. Patients were observed for side effects and tolerability. The mean MASI score after therapy was significantly lower in patients treated with GA and TCA peels as compared with the group receiving LA peel. However, there was no significant difference in the mean MASI scoring at 12 weeks between GA peel and TCA peel groups. The improvement in QOL index was higher among patients undergoing GA peel followed by TCA and LA peel. Adverse effects were noted mostly with TCA peels followed by GA and LA peel. Thus, GA and TCA peels were equally efficacious and more effective than LA peels. LA peel had minimum side effects and better tolerability than GA and TCA peels.
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