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An acquired melanin-related hyperpigmentation that occurs in sun exposure areas is Melasma which presents as gray-brown ridges and macules with prominent margins on the skin. The aim of this assay was to assess the formulation and efficacy of topical Dorema ammoniacum among Melasma patients.

This study was a 30 days double-blind, randomized clinical trial in Melasma with a placebo group. The study was carried out on 49 patients with Melasma attending Haji Daii Nursing Center in Kermanshah, Iran. Optimized topical formulation of D. ammoniacum gum extract was prepared by evaluating the characteristics of different topical formulations of this plant. Mean Melasma severity index (MMASI) instrument was applied to assess the product effectiveness and to determine the skin stains. Patients were pursued to receive the treatment throughout the 30 days trial. This scaling was …