1 citations
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September 2025 in “Plant Science Today” The herbal mix of hibiscus and vitex shows promise for treating autoimmune diseases due to its effectiveness and low toxicity.
June 2021 in “Asian Journal of Medical Sciences” Vitamin B12 deficiency can cause reversible skin darkening.
January 2025 in “The International Journal of Gastroenterology and Hepatology Diseases” Vitamin B12 is crucial for hair and nerve health, and its malabsorption can cause hair loss and nerve damage.
March 2024 in “Portuguese Journal of Dermatology and Venereology” People with hair loss often have lower levels of iron, vitamin D, and vitamin B12.
November 2024 in “PubMed” The supplement improved hair density and was safe to use.
5 citations
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October 2019 in “Giornale italiano di dermatologia e venereologia” Biotin supplements can improve certain skin disorders and hair loss when a deficiency is present.
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.
January 2023 in “Dermatologìâ ta venerologìâ” Biotin tablets and shampoo effectively stop hair loss and restore hair function in women.
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.
7 citations
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January 2016 in “Hair Therapy & Transplantation”
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Knuckle darkening can be an early sign of vitamin B12 deficiency.
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.
The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
Vitamin D3 is crucial for health, preventing issues like bone disorders and hair loss.
July 2025 in “Humanitarian and Natural Sciences Journal” Low vitamin D and ferritin levels may contribute to hair loss in women.
September 2024 in “Cosmoderma” Biotin doesn't help hair growth in healthy people and can cause health risks if overused.
October 2025 in “Phytomedicine” Bazi Bushen capsules reduce skin aging and damage from UV rays.
May 2021 in “Research journal of topical and cosmetic sciences” TrichovitalsTM improved skin, hair, and nail health in adults after 12 weeks.
10 citations
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January 2024 in “Dermatology Research and Practice” Taking a collagen and vitamin C supplement improves skin and hair health.
September 2009 in “European journal of paediatric neurology” Biotin supplements did not significantly reduce hair loss in rats on valproic acid.
1 citations
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March 2020 in “Functional foods in health and disease/Journal of functional foods in health & disease” OM-X® helped prevent negative effects of Vitamin C deficiency in mice, suggesting it could protect organs and regulate metabolism.
October 2008 in “Trace Elements and Electrolytes” Tailored supplementation of calcium, magnesium, and vitamin D based on hair analysis may improve bone health.
April 2017 in “Journal of dermatology & cosmetology” The marine protein complex, Viviscal®, was found to effectively reduce hair loss and improve hair, skin, and nails quality in women.
July 2009 in “DergiPark (Istanbul University)” Vitamin D is essential for healthy bones, muscles, hair, and immune function.
March 2024 in “Deleted Journal” Bariatric surgery improves health but often causes hair loss and vitamin deficiency.
April 2026 in “Global Journal of Health Science” Micronutrient deficiencies are common in hypothyroidism-related hair loss, so monitoring these nutrients may help manage hair health.
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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August 2015 in “Sultan Qaboos University medical journal” Vitamin B12 deficiency can cause skin darkening and other symptoms, which improve with B12 supplements.