February 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study reports that intralesional triamcinolone acetonide was more effective than Vitamin D supplementation in increasing hair density among alopecia areata patients, although Vitamin D also showed significant hair regrowth in patients with low serum vitamin D levels.
February 2026 in “Zenodo (CERN European Organization for Nuclear Research)” In this randomized control trial, the researchers found that intralesional triamcinolone acetonide led to higher hair density increases than Vitamin D supplementation in alopecia areata patients, although potential hair regrowth was also noted with Vitamin D in those with deficient levels.
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January 2016 in “Endocrinology, diabetes & metabolism case reports” This report describes a 19-year-old male with 49,XXXXY syndrome receiving testosterone replacement therapy, which led to improvements in reproductive development, metabolism, and social interaction after a year of treatment.
August 2021 in “Benha Journal of Applied Sciences” This study found that biotin supplementation significantly improved hair loss in telegon effluvium patients with low serum biotin levels.
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July 2018 in “PubMed” This paper presents a case where vitamin D replacement therapy was associated with hair regrowth in a patient with nonscarring alopecia linked solely to vitamin D deficiency and discusses managing vitamin D deficiency more broadly.