11 citations
,
January 1989 in “PubMed” Biotin improved fur and skin conditions in most dogs.
44 citations
,
December 2005 in “The Journal of Steroid Biochemistry and Molecular Biology” Combining 5α-reductase and aromatase inhibitors may better reduce estrogen levels.
July 2023 in “Nature Immunology” CD8+ virtual memory T cells may cause hair loss in alopecia areata.
6 citations
,
September 1996 in “Journal of the European Academy of Dermatology and Venereology” Biotin supplements may help hair regrowth in alopecia areata patients with low biotinidase activity.
1 citations
,
September 1996 in “Journal of the European Academy of Dermatology and Venereology” Biotin supplements may help hair regrowth in some alopecia areata patients.
4 citations
,
January 2015 in “Journal of microbial & biochemical technology” Biotin helps regulate proteins in the blood, which may explain its role in hair growth.
July 2025 in “JAAD Case Reports” 1 citations
,
December 1965 in “PubMed”
78 citations
,
January 2017 in “Skin appendage disorders” Biotin supplements may improve hair and nail growth in people with certain deficiencies or conditions, but there's not enough evidence to recommend it for healthy individuals.
27 citations
,
July 1946 in “The journal of nutrition/The Journal of nutrition” Biotin and inositol are crucial for pig health and growth.
September 2017 in “BAUST Journal” September 1993 in “Archives of Disease in Childhood” Early diagnosis and treatment with biotin are crucial for preventing severe outcomes in certain conditions.
September 2017 in “Hair transplant forum international” Biotin is popular for hair loss, but there's little scientific proof it works.
3 citations
,
January 1966 in “PubMed”
Biotin boosts wool growth and follicle health in sheep.
1 citations
,
September 1993 in “Archives of Disease in Childhood” Biotinidase deficiency can be easily diagnosed and treated with biotin to prevent serious harm.
50 citations
,
May 1985 in “The journal of pediatrics/The Journal of pediatrics” Biotin deficiency in patients on total parenteral nutrition can cause serious symptoms but can be treated with biotin supplements.
Biotin supplements don't consistently help hair growth in alopecia unless there's a deficiency.
1 citations
,
November 2011 in “Turkish Journal of Dermatology” Biotin treatment improved hair and skin issues in a child with biotinidase deficiency.
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.
55 citations
,
December 1987 in “Archives of Dermatology” Two enzyme defects in biotin metabolism cause severe skin, hair, and metabolic issues.
May 2022 in “International Journal of Biochemistry Research and Review” Plant-based biotin from SesZenBioTM could be twice as effective as synthetic biotin for hair care.
71 citations
,
January 2016 in “International Journal of Trichology” Biotin deficiency is not a major cause of hair loss in women, so biotin supplements are not likely to be an effective hair loss treatment.
August 2022 in “Journal of the American Academy of Dermatology” The authors agree they didn't discuss the risks of too much micronutrients and value the focus on biotin deficiency signs and treatment effectiveness.
10 citations
,
April 2020 in “Clinics in Dermatology” Biotin supplements improved skin and hair problems in a girl with biotinidase deficiency.
September 2009 in “European journal of paediatric neurology” Biotin supplements did not significantly reduce hair loss in rats on valproic acid.
September 2024 in “Journal of Clinical and Translational Endocrinology Case Reports” Biotin can interfere with lab tests, causing misdiagnosis.
1 citations
,
July 2022 in “Dermatologic Therapy” Both brands of biotin and dexpanthenol injections improved hair loss, with Bayer also increasing the ratio of thick to thin hairs.
5 citations
,
March 2021 in “International Journal of Dermatology” Biotin supplementation during isotretinoin treatment for acne may help maintain skin hydration and improve hair growth.
184 citations
,
August 1983 in “The journal of pediatrics/The Journal of pediatrics” Biotinidase deficiency has various symptoms and can be treated with biotin supplements.