May 2023 in “Zenodo (CERN European Organization for Nuclear Research)” Biotin may help with hair loss.
September 2017 in “Hair transplant forum international” Biotin is popular for hair loss, but there's little scientific proof it works.
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)” 53 citations
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March 2003 in “Journal of Investigative Dermatology” Human skin cells have a high-affinity system for biotin transport, crucial for skin health.
March 2000 in “Preventive Nutrition and Food Science” Whalgichan improved hair growth, reduced hair loss, and enhanced cholesterol and lipid metabolism without side effects.
April 2024 in “Journal of the American Academy of Dermatology” Taking biotin supplements for hair and nails may not be helpful and could cause harm.
26 citations
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May 1984 in “Journal of Parenteral and Enteral Nutrition” Biotin supplements restored hair and resolved symptoms in a woman with biotin deficiency.
10 citations
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September 2013 in “Nutrition” The ketogenic diet can worsen biotin deficiency, suggesting a need for biotin supplements.
The supplement may reduce hair shedding but needs more research for skin benefits.
April 2022 in “UNESP Institutional Repository (São Paulo State University)” Using both topical minoxidil and oral biotin together significantly boosts hair growth and density.
July 2025 in “JURNAL BIOLOGI TROPIS” A shampoo with teak leaf extract and coconut oil can significantly boost hair growth and reduce hair loss.
The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
Taking too much biotin can mess up blood test results, which might lead to wrong diagnoses and treatments.
166 citations
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November 2008 in “Expert Review of Endocrinology & Metabolism” Biotin and biotinidase are essential to prevent health issues, and deficiencies require lifelong supplementation.
27 citations
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September 2015 in “Current Pharmaceutical Biotechnology” Avoid harmful shampoo chemicals and use scalp treatments with micronutrients for better hair health.
3 citations
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January 2017 in “Journal of cosmetology & trichology” The food supplement with L-cystine, Serenoa repens extract, and biotin safely reduced hair loss and improved hair growth in men and women.
6 citations
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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.
May 2022 in “Endocrine practice” High-dose biotin can cause false thyroid test results; stop taking biotin two days before testing to avoid errors.
10 citations
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October 2017 in “Pediatric neurology” Biotin and acetazolamide improved hair and nail growth, mental function, and reduced headaches in a child with autism.
4 citations
,
January 2011 in “Journal of Cosmetics, Dermatological Sciences and Applications” Vitamin B12 may promote hair growth by affecting certain cell processes.
1 citations
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October 2018 in “Ukraïnsʹkij žurnal dermatologìï, venerologìï, kosmetologìï” Wolvit® (biotin 5 mg) is effective and safe for treating hair loss and scalp conditions in women.
May 2021 in “Zenodo (CERN European Organization for Nuclear Research)” Biotin may help hair and nails grow.
April 2024 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Using both minoxidil and biotin together increased hair growth more than using either one alone.
9 citations
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January 1983 in “Journal of Chromatography B Biomedical Sciences and Applications” Human hair follicles can assess carcinogen metabolism and imidazole compounds might be effective anticarcinogens.
2 citations
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August 2020 in “Clinical, Cosmetic and Investigational Dermatology” The hair-growth formula with L-cystine helps protect and grow hair cells.
71 citations
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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.
July 2021 in “Open access journal of biomedical science” A lotion with natural extracts significantly sped up hair growth in women with hair loss from chemotherapy.
1 citations
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July 2012 in “EFSA journal” KF2BL20 does not have proven benefits for maintaining normal hair.
July 2024 in “Journal of Investigative Dermatology” A peptide in shampoo can promote hair growth and improve hair condition.