4 citations
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August 2016 in “PubMed” Repeated dyeing and shampooing cause hair color loss and damage.
73 citations
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December 2015 in “Nature Genetics” Mutations in TBX3 cause horses to have more even hair color instead of Dun camouflage.
April 2026 in “Cosmetics” The shampoo effectively covers gray hair gradually and maintains color after multiple washes.
38 citations
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June 2019 in “International Journal of Molecular Sciences” Tiny particles called extracellular vesicles could help with skin healing and hair growth, but more research is needed.
5 citations
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June 2012 in “PubMed” Valproic acid can cause a skin condition called leukocytoclastic vasculitis, which usually gets better after stopping the drug.