5 citations
,
August 2015 in “Sultan Qaboos University medical journal” Vitamin B12 deficiency can cause skin darkening and other symptoms, which improve with B12 supplements.
2 citations
,
August 2020 in “Clinical, Cosmetic and Investigational Dermatology” The hair-growth formula with L-cystine helps protect and grow hair cells.
April 2025 in “Egyptian Journal of Medical Research” People with Telogen Effluvium have lower vitamin D levels.
1 citations
,
June 2015 in “Australasian Journal of Dermatology” A patient with Cronkhite-Canada syndrome improved with nutritional support and steroids, but early diagnosis is key due to high mortality.
2 citations
,
May 2001 in “Current problems in dermatology” The conclusion is that effectively treating hair disorders is difficult due to the complex factors affecting hair growth and more research is needed to improve treatments.
2 citations
,
November 2024 in “Journal of Clinical Medicine” Vitamin D3 deficiency can worsen psoriasis by promoting Candida overgrowth.
7 citations
,
May 2012 in “Journal of veterinary diagnostic investigation” Some young Angus cattle had skin problems due to not enough vitamin A, which got better after they were given more vitamin A.
378 citations
,
February 2020 in “Nature Reviews Endocrinology”
6 citations
,
January 2019 in “International Journal of Medicine in Developing Countries” Premature greying of hair is common among young people at King Faisal University, especially females, and is linked to health issues, lifestyle, and family history.
The document concludes that hair loss in women is complex, often linked to aging, health conditions, and nutritional deficiencies, and emotional impacts should not be underestimated.
June 2024 in “Research Square (Research Square)” Young women in West Bengal, India, with PCOS often have estrogen resistance, leptin receptor issues, folate deficiency, T2DM, and acanthosis, commonly linked to obesity.
52 citations
,
August 1993 in “Clinical endocrinology” Intravenous and oral calcium effectively treated vitamin D dependent rickets type II, improving growth and bone health.
2 citations
,
July 2018 in “Elsevier eBooks” Some supplements may help with hair loss, but there's not enough strong evidence to recommend them without doctor advice.
23 citations
,
January 2016 in “International Journal of Trichology” Women with female pattern hair loss have lower Vitamin D3 levels.
18 citations
,
June 2001 in “Journal of Investigative Dermatology” Adding a specific gene to skin cells can help treat skin disorders like psoriasis.
May 2025 in “Journal of the Egyptian Womenʼs Dermatologic Society” Vitamin D3 is a safe and effective alternative to steroids for treating alopecia areata, with fewer side effects.
October 2025 in “International Journal of Dermatology” GLP-1 receptor agonists may cause hair loss, but regrowth is rare.
January 2026 in “BMC Veterinary Research” A genetic variant in "Blonde d'Aquitaine" calves causes death at birth due to a missing protein.
April 2026 in “Journal of Clinical Medicine” GLP-1 RAs may help wound healing but can also cause faster facial aging and skin issues.
August 2023 in “Natural Resources for Human Health” Vegetarians should take B vitamin supplements to avoid health issues.
60 citations
,
March 2011 in “Proceedings of the National Academy of Sciences of the United States of America” RANK-RANKL signaling is essential for hair growth and skin health.
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.
5 citations
,
July 2018 in “Pediatrics” A 3-year-old girl developed scurvy symptoms that improved with vitamin C but relapsed when supplementation stopped.
November 2022 in “Scientific Reports” Certain ESR1 gene variations may affect hormone levels and fat distribution in women with high male hormone levels.
January 2025 in “Scientific Reports” Hair analysis can show changes in vitamin D levels over time.
1 citations
,
August 2021 in “Arhivʺ vnutrennej mediciny” Hormonal imbalances can cause hair loss, and understanding them can help develop better treatments.
1 citations
,
February 2017 in “MOJ bioequivalence & bioavailability” Treating hair loss effectively may require a multi-sided approach, using different treatments together, and topical treatments could be more effective and safer than oral ones.
August 2025 in “Nutrition and Health” Eating foods rich in vitamin D and iron helps prevent hair loss, while alcohol and sugary drinks can cause it.
September 2020 in “University of Thi-Qar Journal of Medicine” Low iron and vitamin D3 levels might be major causes of hair loss in Iraqi women.
4 citations
,
December 2021 in “Pharmacological Reports” Metformin is less effective in men with early-onset hair loss.