119 citations,
May 1987 in “The Journal of Dermatologic Surgery and Oncology” Most patients' skin darkening after sclerotherapy fades on its own within 6-24 months.
8 citations,
January 2019 in “Journal of cosmetic dermatology” Modified phenol peels effectively reduced stubborn skin pigmentation in patients with Lichen Planus Pigmentosus.
6 citations,
February 2014 in “Human & experimental toxicology” Testosterone injections can cause skin darkening and thickening.
5 citations,
January 2021 in “Daru” A woman had severe reactions to methotrexate, including skin issues and organ problems, but improved after 38 days in the hospital.
5 citations,
November 2013 in “Case reports in dermatology” A woman's skin darkened after using dutasteride and pimecrolimus for hair loss, but improved when she stopped the medications and protected her skin from light.