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.
February 2009 in “Springer eBooks” Hyperpigmentation is common in pregnancy and may not fully fade after birth; melasma, also frequent, can persist but has limited treatment options during pregnancy.
May 2023 in “Frontiers in chemistry” Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.
7 citations,
January 2018 in “International Journal of Trichology” Taking 5 mg/day finasteride can cause side effects in women with hair loss, but these are usually mild and fade over time, making the treatment beneficial in the long run.
4 citations,
January 2016 in “Dermatology online journal” Using bacitracin zinc and selenium sulfide one after the other can temporarily turn white hair yellow.