53 citations
,
May 2010 in “Journal of Cellular Physiology” Mice without Vitamin D receptors have hair growth problems because of issues in the hedgehog signaling pathway.
18 citations
,
March 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Estrogen increases blood vessel growth factor production, while testosterone blocks this increase.
1 citations
,
December 2018 in “Indian journal of paediatric dermatology” Kids with alopecia areata had lower vitamin D levels than healthy kids.
62 citations
,
January 2013 in “Skin Pharmacology and Physiology” Low iron and vitamin D levels are linked to hair loss in women.
81 citations
,
January 2006 in “Journal of cellular physiology” Mice without the vitamin D receptor gene lose hair due to disrupted hair follicle cycles.
April 2017 in “Journal of nutritional health & food engineering” Over 65% of people in the United Arab Emirates have undetected vitamin D deficiency, causing symptoms often mistaken for stress or migraines.
1 citations
,
January 2021 in “Journal of Dermatology and Dermatologic Surgery” Taking Vitamin D supplements may increase the risk of skin darkening after laser hair removal.
166 citations
,
February 2005 in “Behavioural brain research” Vitamin D receptor knockout mice have significant motor impairments but no cognitive deficits.
July 2025 in “Humanitarian and Natural Sciences Journal” Low vitamin D and ferritin levels may contribute to hair loss in women.
Lower vitamin D levels are linked to more severe hair loss in men.
13 citations
,
September 2007 in “International Journal of Dermatology” Vitamin D receptor gene variations are not linked to alopecia areata.
26 citations
,
March 2014 in “Journal of cutaneous medicine and surgery” Topical vitamin D is useful for some skin conditions but not effective for others, and more research is needed.
3 citations
,
April 2021 in “Cureus” Low Vitamin D is common in people with Alopecia Areata, but its impact on the condition needs more research.
7 citations
,
January 2013 in “Journal of Investigative Dermatology” Vitamin A may influence hair loss conditions like alopecia, but more research is needed to understand how.
1 citations
,
February 2022 in “Indian Journal of Nutrition and Dietetics/Indian journal of nutrition and dietetics” Muslim women in Coimbatore with limited sunlight exposure due to cultural dress and lifestyle have low vitamin D levels.
March 2023 in “Pakistan Journal of Medical and Health Sciences” Low vitamin D levels are linked to higher rates of hair loss in women.
April 2022 in “JAAD International” Women with frontal fibrosing alopecia have similar vitamin D levels to those with other hair loss types, suggesting vitamin D is not a key factor in this condition.
September 2020 in “International Journal of Research in Medical Sciences” People with alopecia areata had lower vitamin D levels, but these levels did not relate to how severe their condition was.
1 citations
,
January 1980 in “Side effects of drugs annual” Taking too much vitamin A can cause health problems like bone pain and hair loss.
39 citations
,
January 1991 in “Oncology” High-dose vitamin A was safe and well-tolerated in a lung cancer treatment study.
2 citations
,
May 2018 in “Journal of the American Academy of Dermatology” Low vitamin D might be one of several factors involved in the hair loss condition alopecia areata.
December 2024 in “International Journal of Advanced Research” Metformin and vitamin D3 help manage insulin resistance and hormonal imbalances in obese PCOS patients.
9 citations
,
December 2014 in “Neuropsychiatric Disease and Treatment” People with first-time vitiligo have lower levels of a certain brain protein compared to healthy individuals.
18 citations
,
October 2014 in “Experimental Biology and Medicine” Eating vitamin A affects hair growth and health by changing cell signals in mice.
1 citations
,
January 1989 in “Carcinogenesis” Dexamethasone reduces inflammation and delays skin cell changes caused by TPA.
November 2025 in “Bioscientia Medicina Journal of Biomedicine and Translational Research” A combined treatment with microneedling and vitamin D3 led to complete hair regrowth in a woman with stubborn patch alopecia areata.
June 2024 in “Zagazig University Medical Journal” Intralesional vitamin D is mildly effective for treating Alopecia Areata.
Children with alopecia areata often have low vitamin D, especially if they have darker skin, it's not summer, or they're not White.
5 citations
,
April 2019 in “Journal of Nepal Health Research Council” People with Alopecia areata often have lower vitamin D levels, which may be linked to the severity of their condition.
January 2024 in “International journal of chemical research and development (Print)” Low levels of vitamin B12, iron, ferritin, and zinc are linked to hair loss in Iraqi women.