2 citations
,
January 2008 in “Cuadernos de Psiquiatría comunitaria” Vitamin D and its receptor help regulate skin functions like cell growth, immunity, and hair cycle.
98 citations
,
February 2010 in “Dermatology Online Journal” Vitamin D may help treat hair disorders.
September 2023 in “Minia Journal of Medical Research” Intralesional vitamin D3 is a safe, effective treatment for patchy alopecia areata.
December 2017 in “Elsevier eBooks” The vitamin D receptor helps maintain hair and bone health even without binding vitamin D.
1 citations
,
January 2022 in “Journal of Cosmetic Dermatology” Taking oral vitamin D and applying topical minoxidil together can better treat female pattern hair loss than using either treatment alone.
62 citations
,
January 2009 in “Biochemistry” Vitamin D receptor binds similarly to natural and synthetic ligands, affecting gene regulation.
18 citations
,
April 2010 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” The vitamin D receptor helps regulate skin and hair health independently of its usual vitamin D ligand.
37 citations
,
October 2021 in “Nutrients” Vitamin D might help regulate insulin in the body, but taking Vitamin D supplements doesn't clearly prevent or improve type 2 diabetes. More research is needed.
148 citations
,
May 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” Mice without the vitamin D receptor are more prone to UV-induced skin tumors.
June 2012 in “한국생활과학회지 = Korean journal of human ecology” The supplement reduced hair loss and increased hair thickness without side effects.
55 citations
,
January 2020 in “Advances in experimental medicine and biology” Vitamin D and its receptor may help prevent skin cancer.
20 citations
,
June 2020 in “Journal of Advanced Research” High-dose vitamin A and E with zinc improved blood sugar control and insulin function in diabetics, but may cause hair loss.
10 citations
,
June 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” Vitamin D receptor helps protect skin cells from UV damage and supports their growth.
January 2022 in “Medical research archives” Taking vitamin D might improve life for MS patients and reduce skin side effects from alemtuzumab treatment.
1 citations
,
November 2022 in “Molecules/Molecules online/Molecules annual” Some calcium supplements have more calcium than their labels say, and a few have less.
82 citations
,
October 1980 in “The Journal of Clinical Endocrinology & Metabolism” The child's body didn't respond well to vitamin D, causing hair loss and rickets.
1 citations
,
January 2009 in “Trepo - Institutional Repository of Tampere University” Vitamin D may help regulate cholesterol and influence prostate cancer development.
1 citations
,
May 2017 in “Asian journal of medical sciences” The dietary supplement significantly improved skin, nails, and hair in older adults.
24 citations
,
November 2008 in “Arquivos Brasileiros de Endocrinologia & Metabologia” Four patients with a type of rickets and hair loss had different mutations in their vitamin D receptor gene, causing it to not work properly.
11 citations
,
March 2015 in “Life sciences” Vitamin D3-activated cell byproduct promotes hair growth in mice by increasing blood vessel growth.
September 2023 in “International Journal of Trichology” Oral Vitamin D can improve hair density and reduce hair loss in Telogen Effluvium patients.
August 2025 in “Japan Journal of Clinical & Medical Research” Many people in Misurata City have low vitamin D, especially women and those aged 35-45, with levels dropping in winter and spring.
22 citations
,
January 2010 in “Humana Press eBooks” The vitamin D receptor can affect gene activity even without its usual hormone in hair and skin.
August 2025 in “Quality in Sport” Vitamin A is essential but too much can be harmful, especially from supplements.
12 citations
,
March 2019 in “Cosmetics” The oral supplement with Pinus pinaster and Grape seed extract, used with sunscreen, effectively and safely improved mild-to-moderate facial melasma.
January 2025 in “Clinical Pediatric Endocrinology” Calcium supplements improved bone deformities but not skin papules or hair loss.
20 citations
,
January 2019 in “Toxicology Reports” Dunaliella salina microalgae is safe to eat and may boost health.
37 citations
,
August 2015 in “The Journal of Steroid Biochemistry and Molecular Biology” The vitamin D receptor can regulate genes and affect hair and hormone levels without its usual activator.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Vitamin D receptor is key to hair growth, not vitamin D itself.
The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.