21 citations
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June 2011 in “Journal of child neurology” Valproic acid and carbamazepine do not change biotin or biotinidase levels but may lower zinc levels, still within normal range.
GV-350 improves hair growth and quality of life in iron-deficient women without side effects.
September 2017 in “Hair transplant forum international” Biotin is popular for hair loss, but there's little scientific proof it works.
1 citations
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January 1997 in “Proceedings of the British Society of Animal Science” Biotin is important for goat skin and hair health.
September 1993 in “Archives of Disease in Childhood” Early diagnosis and treatment with biotin are crucial for preventing severe outcomes in certain conditions.
May 2023 in “Elsevier eBooks” Some nutritional supplements may help thicken hair in people with hair loss, but taking too much can cause side effects.
January 1959 in “Acta medica Scandinavica” A balanced diet with essential vitamins, especially B-complex, prevents hair loss.
73 citations
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October 2001 in “Epilepsia” Children taking higher doses of valproic acid had lower biotinidase activity, which may lead to biotin deficiency, but biotin supplements could help.
82 citations
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August 2017 in “Cell Reports” An imbalanced gut and lack of biotin can cause hair loss in mice.
May 2026 in “Journal of Cosmetic Dermatology” The supplement improved hair growth and reduced hair loss effectively.
49 citations
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April 2007 in “Pediatric Dermatology” Biotin improved hair appearance in uncombable hair syndrome but didn't change hair structure.
January 2000 in “Europe PMC (PubMed Central)” 7 citations
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July 2021 in “PubMed” Vitamins A, B, C, and D are important for skin health and are being explored for new uses, but more research is needed to confirm their effectiveness.
May 2023 in “Zenodo (CERN European Organization for Nuclear Research)” Biotin may help with hair loss.
May 2021 in “Research journal of topical and cosmetic sciences” TrichovitalsTM improved skin, hair, and nail health in adults after 12 weeks.
July 2025 in “Humanitarian and Natural Sciences Journal” Low vitamin D and ferritin levels may contribute to hair loss in women.
January 2022 in “Journal of Clinical and Diagnostic Research” Using platelet-rich plasma injections and biotin pills together significantly increases hair regrowth in men with hair loss.
May 2025 in “International Journal of Trichology” The supplement improved hair health and reduced shedding in people with telogen effluvium.
1 citations
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September 2022 in “Journal of dermatological science” Certain vitamins and their derivatives can help hair grow longer by activating specific growth signals.
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.
3 citations
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January 2021 in “Molecular genetics & genomic medicine” The study found two new mutations in a Chinese patient with severe biotinidase deficiency.
2 citations
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January 1997 in “Journal of Clinical Biochemistry and Nutrition” Biotin deficiency causes severe hair loss and weight reduction in germ-free mice.
1 citations
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September 1993 in “Archives of Disease in Childhood” Biotinidase deficiency can be easily diagnosed and treated with biotin to prevent serious harm.
2 citations
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June 2023 in “Journal of the American Academy of Dermatology” Hair, skin, and nails supplement use nearly doubled from 2011 to 2020, with higher usage among young adults, females, and certain ethnic groups.
31 citations
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December 1997 in “Developmental Medicine & Child Neurology” Biotinidase deficiency can cause vision and walking problems in children and can improve with biotin treatment.
11 citations
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January 1989 in “PubMed” Biotin improved fur and skin conditions in most dogs.
August 2021 in “Benha Journal of Applied Sciences” Biotin supplements significantly improve hair loss in people with telegon effluvium who lack biotin.
September 2025 in “Indian Journal of Psychiatry” Valproic acid treatment may cause hair loss due to reduced biotinidase activity.
1 citations
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October 2015 in “CRC Press eBooks” Nutricosmetics with active ingredients can help with hair loss and improve hair growth.