Overview Comparison of 30% Metformin and 2% Nicotinamide Lotion With Kligman Formula in the Treatment of Melasma Status: Completed Trial end date: 2023-02-15 Target enrollment: Participant gender: Summary Comparison of 30% Metformin and 2% Nicotinamide lotion with kligman formula in the treatment of Melasma Phase: Phase 2 Details Lead Sponsor: Ishtiaq AhmedTreatments: MetforminNiacinNiacinamideNicotinic Acids