5 citations
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July 2006 in “Contact dermatitis” Ammonium bisulfite in hair bleach can cause facial eczema.
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.
April 2023 in “Pharmacognosy Magazine” Cerasus serrulata flower extracts can help turn grey hair black again.
12 citations
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January 2021 in “Dermatology Research and Practice” The 1927 nm Thulium laser effectively and safely treats postinflammatory hyperpigmentation in darker skin tones.
4 citations
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January 2016 in “Dermatology online journal” Using bacitracin zinc and selenium sulfide one after the other can temporarily turn white hair yellow.