January 1990 in “Springer eBooks” Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.
10 citations
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January 2010 in “Acta dermato-venereologica” Light therapy can effectively treat vitiligo and hair loss caused by a specific medication.
12 citations
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June 2010 in “Journal of dermatology” Some patients with severe alopecia areata developed skin darkening from their treatment, which may indicate a less effective response to the therapy.
16 citations
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April 2000 in “Contact dermatitis” A man developed severe skin reactions after using a treatment for hair loss.
44 citations
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February 2015 in “Journal of the American Academy of Dermatology” Combining diphenylcyclopropenone with anthralin is more effective for hair regrowth in alopecia areata than using diphenylcyclopropenone alone, but may cause more side effects.