Older people tend to have higher biotin levels, which are weakly linked to certain blood components and negatively linked to triglycerides; biotin should be checked in patients with high triglycerides or medication-related skin issues, and only supplemented if deficient. Vitamin D and folate deficiencies are linked to specific skin conditions.
5 citations
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July 2017 in “International journal of endocrinology and metabolism/International journal of endocrinology and metabolism.” Two siblings with a genetic mutation had a form of rickets that doesn't respond to vitamin D.
2 citations
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July 2013 in “Journal of Life Sciences” A 2-year-old girl with a rare vitamin D disorder had rickets and hair loss, but treatment was ineffective due to poor compliance.
The vitamin D receptor has many roles in the body beyond managing calcium, affecting the immune system, hair growth, muscles, fat, bone marrow, and cancer cells.
2 citations
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November 2004 in “Hospital pharmacy” Certain medications can cause serious side effects, so it's important to report them.
18 citations
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January 1988 in “Acta oncologica” Retinol palmitate may reduce cancer relapses in early-stage lung cancer patients.
23 citations
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September 2016 in “Archives of Dermatological Research” Vitamin D levels do not affect the risk of developing alopecia areata.
15 citations
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January 2025 in “Journal of the European Academy of Dermatology and Venereology” Ritlecitinib is effective and safe for treating alopecia areata, promoting significant hair regrowth.
1 citations
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May 2017 in “Journal of The American Academy of Dermatology” People with alopecia areata often have lower vitamin D levels than healthy people.
19 citations
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May 2014 in “Molecules” Avicequinone C, a compound found in the Avicennia marina plant, can reduce hair loss by inhibiting a hormone linked to androgenic alopecia.
2 citations
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November 1961 in “American Journal of Clinical Nutrition” October 2024 in “Journal of the Endocrine Society” A rare genetic mutation causes resistance to vitamin D, leading to severe rickets and requires high doses of calcium and vitamin D for management.
23 citations
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October 2024 in “British Journal of Dermatology” Ritlecitinib effectively treats alopecia areata and is safe for long-term use in people 12 and older.
June 2001 in “Annals of Internal Medicine” The document concludes that more research is needed on the hepatitis B vaccine's side effects and the effectiveness of certain treatments for specific diseases.
March 1993 in “Neuroscience letters” Biotin is important for metabolism, with specific daily intake recommendations, and deficiency can cause health problems.
1 citations
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February 2026 in “Clinics in Dermatology” Vitamins help hair mainly if you have a deficiency; too much can cause hair loss.
January 2024 in “Journal of advanced research in Medical and Health science” People with severe and long-lasting alopecia areata often have low vitamin D levels, and treatments with vitamin D-like substances might help.
May 2025 in “Journal of Ayurveda and Integrated Medical Sciences” Vedistry Amla + Tablets improve hair health and are safe to use.
October 2024 in “Journal of the European Academy of Dermatology and Venereology” Ritlecitinib and baricitinib are similarly effective for hair regrowth in severe alopecia areata.
January 2026 in “Materials Horizons” The hydrogel helps wounds heal without scars and promotes new hair growth.
June 2026 in “Journal of health economics and outcomes research” Ritlecitinib is more effective and cost-efficient than baricitinib for severe alopecia areata.
9 citations
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June 2019 in “Archives of Dermatological Research” Both topical calcipotriol and narrowband UVB improved alopecia, but combining them didn't enhance the effect on hair loss severity, despite higher vitamin D3 levels.
January 2023 in “Italian journal of dermatology and venereology” The supplement effectively improved hair growth and reduced hair loss safely.
14 citations
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July 2022 in “Nutrients” Vitamin A is important for healthy skin and hair, influencing hair growth and skin healing, but UV light reduces its levels.
1 citations
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November 2023 in “SKIN The Journal of Cutaneous Medicine” 15 citations
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June 2016 in “Computers in Biology and Medicine” Ascorbyl Tetraisopalmitate penetrates skin better in the stratum corneum than in the infundibulum.
2 citations
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September 2022 in “Frontiers in Nutrition” High-dose vitamin D3 does not improve symptoms or quality of life in COVID-19 patients after one year.
119 citations
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July 2016 in “Annals of the New York Academy of Sciences” Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.
3 citations
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April 2021 in “Cureus” Low Vitamin D is common in people with Alopecia Areata, but its impact on the condition needs more research.
June 2024 in “Zagazig University Medical Journal” Intralesional vitamin D is mildly effective for treating Alopecia Areata.