Treatment of melasma still remains challenging due to the prolonged duration of therapy. The substantial relapse rate, which is mainly attributed to persistence of the exacerbating factors (sun exposure) which is inevitable in this part of the world, is still an obstacle.
Quantitative analysis of improvement in melasma is difficult. Mostly, MASI score, developed by Kimbrough-Green et al.,9,10 is used for the assessment.11 Mexameter has been developed to provide objective measurement of melanin.12
Prepeeling preparation with retinoic acid could lead to more quick and uniform infiltration of the peeling solution with decreasing risk of complications.13