September 2024 in “Journal of the American Academy of Dermatology” Generic topical and transdermal systems usually cause minimal irritation or sensitization.
36 citations
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March 1989 in “British journal of dermatology/British journal of dermatology, Supplement” In this study, the authors compared topical diphencyprone and tretinoin gel for treating alopecia totalis and universalis, but the abstract does not report any definitive clinical results.
April 2025 in “Acta Dermato Venereologica” This review evaluates 21 studies on minoxidil-induced allergic contact dermatitis, finding that some patients with contact dermatitis symptoms like erythema and pruritus are sensitized to minoxidil or its vehicle components and should consider patch testing and alternative formulations for proper management.
15 citations
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February 2014 in “Toxicology Letters” This study found that osthole, a coumarin derivative, demonstrated significantly higher skin accumulation and potential skin irritation compared to coumarin, which showed negligible alterations in protein biomarkers.
May 2003 in “Hair transplant forum international” This review discusses the use of strontium in hair restoration, noting its effectiveness for managing post-operative itching but does not present new clinical results.