September 2021 in “Journal of the Egyptian Women's Dermatologic Society (Print)” The study concluded that low iron and vitamin D levels in women might play a role in chronic hair loss, despite no significant difference between those with and without hair loss.
June 2025 in “British Journal of Dermatology” Premature canities is linked to low vitamin D and B12, family history, and higher MHR.
10 citations
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August 2021 in “Journal of Cosmetic Dermatology” Most patients with telogen effluvium had low iron and vitamin D levels; iron supplements were commonly prescribed.
September 2018 in “Journal of the American Academy of Dermatology” Elderly patients with CCCA were all African American with low vitamin D, but no iron or zinc deficiencies, and no hormonal imbalances compared to younger patients.
December 2021 in “International Journal of Research in Dermatology” Female pattern hair loss in Saudi women is linked to low iron and vitamin D levels.
35 citations
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January 2013 in “International Journal of Trichology” Kids with early graying hair often have low levels of calcium, ferritin, and vitamin D3.
39 citations
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January 2017 in “Dermatologic Therapy” Topical calcipotriol may help treat alopecia areata, especially in those with low vitamin D.
November 2003 in “Journal of Investigative Dermatology” Topical Imiquimod may fight vascular tumors by affecting blood vessels or the immune system, low iron might be linked to some hair loss, removing the top skin layer helps vitamin C get in, genetic testing helps diagnose skin conditions, and too much iron could worsen skin inflammation.
April 2024 in “International Journal of Advanced Research” Vitamin B12 deficiency is linked to hair loss and skin pigmentation changes.
18 citations
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March 2016 in “Journal of Investigative Dermatology” Vitamin D and calcium are essential for normal hair growth.
January 2026 in “Dermatology Practical & Conceptual” Children with alopecia areata often have vitiligo, allergic asthma, ADHD, and low vitamin B12 and ferritin levels.
September 2023 in “Journal of the American Academy of Dermatology” Methylprednisolone treatment helps most alopecia areata patients, but young age, extensive hair loss, and low vitamin D can affect results.
March 2023 in “Pakistan Journal of Medical & Health Sciences” Vitamin D analogues can significantly help hair regrowth in Alopecia Areata patients.
86 citations
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August 2015 in “The Journal of Steroid Biochemistry and Molecular Biology” Vitamin D and calcium are essential for effective wound healing and hair growth.
46 citations
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May 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” The vitamin D receptor is essential for skin stem cells to grow, move, and become different cell types needed for skin healing.
Excessive vitamin A intake caused severe health issues that mostly resolved after stopping the intake.
January 2019 in “Figshare” Redheaded people have higher levels of vitamin D precursor, suggesting their hair color may be an adaptation to low sunlight areas.
81 citations
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March 1985 in “Journal of Clinical Investigation” Measuring 24-OHase induction helps identify defects in vitamin D processing and predict treatment response.
May 2020 in “Current developments in nutrition” Vitamin A affects the resting phase of hair growth, with both low and high levels increasing the number of hair follicles in this phase.
April 2008 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The vitamin D receptor helps control hair growth and may protect against certain skin tumors.
August 2017 in “Journal of epidemiological research” Cancer rates are increasing in developed countries, with estrogen, aging, low vitamin D3, and HPV infection as common causes.
December 2024 in “International Journal of Health Sciences and Research” Vitamin D is crucial for health, and deficiency can cause hair loss and other health issues.
1 citations
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June 2022 in “Al-Esraa University College journal for medical sciences.” Vitamin D supplements improve bone pain, tiredness, hair loss, and mood, especially in women and older adults.
March 2024 in “Portuguese Journal of Dermatology and Venereology” People with hair loss often have lower levels of iron, vitamin D, and vitamin B12.
January 2012 in “Vitamins & trace elements” Smoking and drinking can lower vitamin levels and potentially trigger early hair loss, but overall vitamin levels don't seem to affect hair loss duration.
76 citations
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April 2002 in “Urology” Selenium and vitamin E supplements have mixed effects on prostate cancer risk and may not be beneficial for everyone.
September 2025 in “Clinics and Practice” Collagen with calcium and vitamin D improves bone health, skin elasticity, and reduces hair loss in menopausal women.
18 citations
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October 2014 in “Experimental Biology and Medicine” Eating vitamin A affects hair growth and health by changing cell signals in mice.
13 citations
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July 2020 in “World journal of stem cells” Vitamin D and calcium are important for skin stem cell function and wound healing.
9 citations
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November 2014 in “Journal of Cutaneous Medicine and Surgery” Many dermatologists in Saudi Arabia recommend vitamins and minerals for hair loss, often based on personal experience rather than strong evidence.