December 2020 in “The Medical journal of Basrah University” Low vitamin D levels may contribute to female pattern hair loss.
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.
77 citations
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August 1986 in “Archives of Dermatology” Vitamin B12 deficiency can cause skin and hair color changes, which are reversible with treatment.
20 citations
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July 1990 in “Clinical and experimental dermatology” Taking cyproterone acetate and ethinyl oestradiol for hair loss can lower vitamin B12 levels in women.
16 citations
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January 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” Low levels of vitamin B12 and ferritin are linked to early hair graying.
16 citations
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January 2008 in “Acta dermato-venereologica” Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.
16 citations
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February 2008 in “PubMed” Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
11 citations
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August 1986 in “Archives of Dermatology” Vitamin B12 deficiency can cause skin and hair color changes, which can be reversed with treatment.
4 citations
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March 2020 in “JAAD Case Reports” Vitamin B12 deficiency can cause darkening of all nails.
2 citations
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October 1961 in “Experimental Biology and Medicine” Natural feedstuffs help reduce muscular dystrophy in rabbits more than selenium or vitamin E alone.
2 citations
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October 2016 in “Nutrition in clinical practice” Vitamin B12 deficiency can cause facial dark spots that go away with treatment.
March 2023 in “JIIS (Jurnal Ilmiah Ibnu Sina): ilmu farmasi dan kesehatan” The best biotin hair tonic formula has 20% span 80, 9.47% tween 80, and 5% PEG 400.
May 2024 in “Journal of ayurveda and integrated medical sciences” Amra Beej Majja Churna may help improve Vitamin B12 levels and symptoms in vegans.
April 2024 in “International Journal of Advanced Research” Vitamin B12 deficiency is linked to hair loss and skin pigmentation changes.
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Knuckle darkening can be an early sign of vitamin B12 deficiency.
September 2020 in “Benha Veterinary Medical Journal” Sheep with skin diseases often have lower levels of certain trace elements and vitamin A, and higher oxidative stress and immunoglobulin E levels.
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.
June 2019 in “Kufa journal for veterinary medical sciences” Vitamin C deficiency causes severe skin problems in newborn dairy calves.
September 2018 in “Journal of Society of Cosmetic Chemists of Japan” Lipophilic Vitamin C improves damaged hair texture and condition.
39 citations
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January 1991 in “Oncology” High-dose vitamin A was safe and well-tolerated in a lung cancer treatment study.
12 citations
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October 2021 in “Journal of the Science of Food and Agriculture” Vitamin A improves fur quality in heat-stressed Rex rabbits.
1 citations
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May 2023 in “Journal of the European Academy of Dermatology and Venereology” Minoxidil and vitamin E may help improve nail growth and health.
1 citations
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September 2007 in “Neuromuscular disorders” The treatment with valproate, acetylcarnitine, folic acid, and vitamin B12 may improve muscle strength in children with SMA without significant side effects.
May 2026 in “Archives of Dermatological Research” Vitamin E and gamma-oryzanol protect hair from UV damage.
August 2025 in “Quality in Sport” Vitamin A is essential but too much can be harmful, especially from supplements.
July 2020 in “International journal of biology sciences” Coconut oil mixed with egg yolk and vitamin E may improve rabbit hair growth more than other plant oils.
10 citations
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January 2013 in “TURKISH JOURNAL OF MEDICAL SCIENCES” Low vitamin D levels can lead to increased parathyroid hormone levels.
1 citations
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February 2022 in “Journal of the American Academy of Dermatology” Taking biotin supplements can be risky and often lacks evidence of effectiveness for skin, hair, and nail issues.
May 2026 in “Preprints.org” The nutrient combination improved hair condition and was safe for women with diffuse hair loss.
July 2025 in “Insights-Journal of Health and Rehabilitation” Adding vitamin D to metformin lowers blood sugar more than metformin alone in type 2 diabetes.