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Comparative Study
. 2024 Oct 5;316(9):662.
doi: 10.1007/s00403-024-03355-9.

Evaluation the efficacy of microneedling with topical metformin solution compared with microneedling with topical vitamin C solution in treatment of melasma

Manal Mahmoud Yosef Mahmoud  1 , Abeer Moustafa Kamel  2 , Sara Ahmed Galal  3
Affiliations
Comparative Study

Evaluation the efficacy of microneedling with topical metformin solution compared with microneedling with topical vitamin C solution in treatment of melasma

Manal Mahmoud Yosef Mahmoud et al. Arch Dermatol Res. .

Abstract

Several treatment modalities have been used for the treatment of melasma. Topical metformin is an anti-diabetic drug, which has melanopenic action. Vitamin C acts on melanin by inhibiting the tyrosinase enzyme, thus inhibiting melanogenesis. To compare the efficacy and safety of microneedling combined with topical metformin solution versus microneedling combined with topical vitamin C in the treatment of melasma. A spitted-face interventional comparative on 30 female patients suffering from melasma. The right side of the face was treated with microneedling and topical metformin, while the left side was treated with microneedling and topical vitamin C solution. Hemi-MASI score decreased significantly after treatment from before treatment in both groups P-value < 0.001. The percentage of improvement of Hemi-MASI score metformin group was 48.29%, While with vitamin C group was 37.19%. There was a significant improvement in dermoscopic findings in microneedling with topical metformin than with topical vitamin C group. Microneedling with topical metformin or topical vitamin C solution can be an effective and safe therapeutic option for treating melasma with no significant side effects.

Keywords: Melasma; Metformin; Microneedling; Vitamin C.

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