92 citations,
June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
June 2024 in “Sohag Medical Journal” Vitamin D is linked to hair health, but more research is needed for its use in treating female hair loss.
August 2016 in “Journal of Investigative Dermatology” 106 citations,
January 2013 in “Clinical and Developmental Immunology” Alopecia areata is caused by immune system attacks on hair follicles, often triggered by viral infections.
19 citations,
November 2010 in “PubMed” New genetic insights have improved understanding of hair loss, leading to a new test and treatments, but more research is needed on the test and laser comb effectiveness.