34 citations
,
September 2019 in “Clinical, Cosmetic and Investigational Dermatology” Light therapy can stimulate hair growth and is more effective when started early, but more research is needed on its long-term effects and optimal use.
8 citations
,
March 2015 in “Molecular Medicine Reports” Hair dye ingredient PPD causes cell death and aging in human hair cells by altering microRNA levels.
8 citations
,
July 2001 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” New treatments for vitiligo show promise but still face challenges, especially for hands and feet.
2 citations
,
January 2017 in “Indian Dermatology Online Journal” A rare skin reaction from laser hair removal can be prevented with medication.
4-(Ethoxycarbophenyl) retinamide is much less toxic than other retinoids.
September 2025 in “Lasers in Medical Science” 
January 2026 in “Frontiers in Medicine” PP-PTKL may help treat hair greying, but more testing is needed.
47 citations
,
September 1995 in “British Journal of Dermatology” Diphencyprone therapy for hair loss can cause vitiligo.
Retinoids can help treat skin pigmentation disorders by affecting melanin production.
August 2024 in “Clinical Cosmetic and Investigational Dermatology” Upadacitinib and narrowband UVB effectively treated a child's vitiligo and alopecia areata.