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.
82 citations
,
August 2017 in “Cell Reports” An imbalanced gut and lack of biotin can cause hair loss in mice.
19 citations
,
January 2015 in “Current problems in dermatology” Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.
November 2019 in “Harper's Textbook of Pediatric Dermatology” Understanding normal hair growth and loss in children is key to diagnosing and treating hair disorders.
98 citations
,
October 2012 in “Dermatologic Clinics” Eating the right nutrients can improve hair health, but taking extra supplements usually doesn't help unless you have a deficiency.
50 citations
,
November 2010 in “Otolaryngologic Clinics of North America” Recognizing oral symptoms can help diagnose and treat blood and nutritional diseases early.
January 2024 in “Biomedical journal of scientific & technical research” Vitamins A, B7, C, D, and E are essential for healthy hair growth and preventing damage.
36 citations
,
October 2008 in “European journal of paediatric neurology” Valproic acid treatment may cause temporary hair loss due to reduced zinc and biotinidase levels, which tend to normalize after 6 months.
September 2025 in “Indian Journal of Psychiatry” Valproic acid treatment may cause hair loss due to reduced biotinidase activity.
2 citations
,
March 2020 in “PubMed” Biotin deficiency is not a major cause of Telogen Effluvium hair loss.
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.
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.
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.
6 citations
,
April 2019 in “Nutrients” Biotin is important for keeping zinc levels balanced in the skin and its lack can cause hair loss.
September 2024 in “Cosmoderma” Biotin doesn't help hair growth in healthy people and can cause health risks if overused.
40 citations
,
September 2019 in “World journal of clinical cases” An elderly man's hair grew back after a treatment that transferred healthy gut bacteria.
3 citations
,
November 2021 in “Applied Microscopy” Hair microscopy is a simple and cost-effective method to help diagnose systemic diseases in children.
3 citations
,
June 2025 in “Frontiers in Nutrition” Zinc effectively treats most children with acrodermatitis enteropathica, but underlying metabolic issues may require additional management.
August 2023 in “Natural Resources for Human Health” Vegetarians should take B vitamin supplements to avoid health issues.
134 citations
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December 2018 in “Dermatology and Therapy” Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.
January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Certain nutrients can improve skin health and treat skin problems safely.
May 2026 in “International Journal of Creative and Open Research in Engineering and Management” This review highlights the multifactorial causes of hair loss, emphasizing the significant role of nutrition and lifestyle in maintaining hair health. It identifies deficiencies in micronutrients like iron, vitamin D, zinc, vitamin B12, and essential fatty acids as contributors to hair loss, while excessive intake of certain nutrients like vitamin A and zinc can also be detrimental. Lifestyle factors such as sleep quality, stress, physical activity, and hair care practices influence hair health through hormonal and oxidative mechanisms. The review notes the scarcity of large-scale studies on nutritional and lifestyle interventions for hair loss, calling for more research to establish evidence-based guidelines. A balanced diet and healthy lifestyle are crucial for supporting hair health.
2 citations
,
July 2018 in “Elsevier eBooks” Some supplements may help with hair loss, but there's not enough strong evidence to recommend them without doctor advice.
January 2011 in “Springer eBooks” Eating a balanced diet with the right vitamins and minerals is important for healthy hair, but too many supplements can be harmful.
10 citations
,
July 2018 in “Our Dermatology Online” Some vitamins and minerals are important for preventing hair loss, but treating hair loss with them without a known deficiency is not proven effective.
August 2025 in “International Journal for Vitamin and Nutrition Research” Vitamin B complex improves plastic and cosmetic surgery outcomes by enhancing tissue repair and reducing inflammation.
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.
11 citations
,
January 2020 in “BMC pediatrics” New mutations in the SLC39A4 gene found in twins help understand the genetic cause of acrodermatitis enteropathica.
March 2000 in “Preventive Nutrition and Food Science” Whalgichan improved hair growth, reduced hair loss, and enhanced cholesterol and lipid metabolism without side effects.
January 2021 in “Scandinavian journal of clinical and laboratory investigation” The document describes a way to measure biotin in blood to prevent wrong test results in hormone level testing.