June 2023 in “Italian journal of dermatology and venereology” Trichoscopy effectively diagnoses allergic scalp contact dermatitis.
April 2025 in “Acta Dermato Venereologica” Accurate diagnosis is crucial to distinguish between allergy and irritation from topical minoxidil.
7 citations
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January 2009 in “International Journal of Trichology” Dermoscopy can't help doctors identify scalp irritation caused by topical minoxidil.
Hair product allergies are common, especially to hair dyes, and hairdressers are at higher risk.
5 citations
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July 2022 in “PubMed” Hair dyes, shampoos, and conditioners often cause scalp allergies due to common allergens like p-phenylenediamine and nickel.