November 2022 in “Journal of the Endocrine Society” Taking biotin can lead to incorrect low results in free testosterone tests.
4 citations
,
January 1986 in “PubMed” Serum biotin levels can indicate biotin deficiency in sows.
1 citations
,
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.
13 citations
,
January 2019 in “Journal of the American Academy of Dermatology” Most people using biotin don't see skin improvements, and it may affect lab tests, so doctors shouldn't suggest it without confirming a deficiency.
September 2024 in “Journal of Clinical and Translational Endocrinology Case Reports” Biotin can interfere with lab tests, causing misdiagnosis.
74 citations
,
July 1979 in “Lancet” Biotin treatment can significantly improve hair loss and motor functions in certain metabolic disorders.
26 citations
,
May 1984 in “Journal of Parenteral and Enteral Nutrition” Biotin supplements restored hair and resolved symptoms in a woman with biotin deficiency.
6 citations
,
January 2016 in “Pediatrics international” Japanese infants fed hydrolysate formula may have low biotin levels.
55 citations
,
July 1983 in “Journal of the American Academy of Dermatology” Biotin supplements can effectively treat hair loss and skin issues in certain enzyme deficiencies.
1 citations
,
December 2017 in “Skin appendage disorders” Biotin may help women with hair loss who have low biotin levels, but more research is needed.
May 2022 in “Endocrine practice” High-dose biotin can cause false thyroid test results; stop taking biotin two days before testing to avoid errors.
Biotin boosts wool growth and follicle health in sheep.
October 2023 in “International Journal of Cosmetic Science” WS Biotin, a new form of D-Biotin, improves water solubility and shows potential for hair and skin care without being toxic at low levels.
2 citations
,
August 2024 in “Molecular Genetics & Genomic Medicine” Biotin mega-dose therapy led to dramatic improvement in a newborn with a rare metabolic disorder.
January 2000 in “Europe PMC (PubMed Central)” 1 citations
,
January 1999 in “Proceedings of the British Society of Animal Science” Biotin helps maintain hair follicle growth by affecting cell death and survival signals.
Biotin supplements don't consistently help hair growth in alopecia unless there's a deficiency.
3 citations
,
January 1966 in “PubMed” January 1999 in “Proceedings of the British Society of Animal Science” Biotin deficiency may harm hair follicle health and growth in Angora goats.
55 citations
,
November 2019 in “Cellular and Molecular Gastroenterology and Hepatology” Biotin may help treat inflammatory bowel disease by reducing inflammation and improving gut health.
1 citations
,
December 1965 in “PubMed”
2 citations
,
January 1997 in “Journal of Clinical Biochemistry and Nutrition” Biotin deficiency causes severe hair loss and weight reduction in germ-free mice.
August 2018 in “Journal of the American Academy of Dermatology” Biotin treatment for hair, nail, and skin disorders has weak evidence and should not be recommended unless new research shows clear benefits.
9 citations
,
February 1984 in “Zentralblatt für Veterinärmedizin Reihe A” Biotin is essential for healthy skin and claws in pigs.
8 citations
,
September 1981 in “Zentralblatt für Veterinärmedizin Reihe A” Biotin deficiency in pigs causes hair loss, skin issues, and weak claws.
September 2024 in “Meditsinskiy sovet = Medical Council” Biotin effectively treats hair loss, skin, and nail issues without overdose risk.
23 citations
,
January 1991 in “Journal of Animal Science” Biotin supplementation in sow diets is unnecessary.
May 2025 in “Health Science Reports” Serum WS Biotin significantly reduces hair shedding and improves hair thickness.
Biotin does not significantly help with hair growth.
4 citations
,
August 2018 in “Journal of The American Academy of Dermatology” The authors agree that biotin may help certain hair disorders but lacks evidence for use in healthy people and call for more research.