6 citations
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October 1980 in “Archives of Dermatology” Vitamin deficiencies, especially biotin and vitamin D, can cause hair loss.
22 citations
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April 2015 in “Current problems in dermatology” Human hair follicles have a unique metabolism that changes between growth stages and may contribute to baldness.
22 citations
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February 2010 in “The Veterinary clinics of North America. Small animal practice/Veterinary clinics of North America. Small animal practice” The cause of atypical Cushing's syndrome in dogs, possibly linked to sex hormones, is not yet proven.
April 2026 in “Science Progress” GLP-1 therapies, especially semaglutide and tirzepatide, may cause hair loss, particularly in women and with rapid weight loss.
12 citations
,
November 2015 in “Journal of Investigative Dermatology Symposium Proceedings” PTH-CBD helps reduce hair loss in mice by stimulating hair growth directly.
1 citations
,
August 2023 in “Case Reports in Women s Health” Leydig cell hyperplasia can cause virilization in postmenopausal women and is treatable with surgery.
June 2025 in “British Journal of Dermatology” Denosumab may cause alopecia areata.
4 citations
,
November 1996 in “European journal of endocrinology” Spironolactone may help treat excessive hair growth in girls, but more research is needed.
1 citations
,
November 2022 in “Journal of pharmaceutical negative results” Alopecia areata is an autoimmune condition causing patchy hair loss, with treatments focusing on immune system regulation and hair regrowth.
9 citations
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February 2012 in “Clinical Neurology and Neurosurgery” Dystonia may be part of PAS-4 and linked to immune issues.