https://www.selleckchem.com/pr....oducts/sumatriptan.h
To assess the efficacy and safety of topical 5% cysteamine versus 4% hydroquinone in the treatment of facial melasma in women. Topical 5% cysteamine is an antioxidant and tyrosinase inhibitor that has been shown to be effective in the treatment of melasma. However, to date, no study has compared the performance of topical cysteamine to hydroquinone for facial melasma. A quasi-randomized, multicenter, evaluator-blinded clinical trial was conducted on 40 women with facial melasma who were submitted to the nightly application of 5% cys