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.
October 2022 in “Research, Society and Development” Vitamins and minerals don't significantly affect hair loss treatment in patients with telogen effluvium.
January 2022 in “Clinical Cases in Dermatology” Lack of certain nutrients may contribute to hair loss and proper diet or supplements could improve it.
July 2018 in “International journal of clinical & experimental dermatology” Eat a balanced diet for healthy hair; only use supplements if you have a proven nutrient deficiency.
September 2024 in “Journal of the American Academy of Dermatology” Dietary changes and supplements mostly did not improve alopecia areata.
August 2021 in “Indian dermatology online journal” A young boy with a rare skin and nail condition improved significantly with simple topical treatments.
86 citations,
January 1990 in “The Journal of Pediatrics” Children with partial biotinidase deficiency are healthy at birth but may develop symptoms that improve with biotin therapy.
September 2019 in “PubMed” The conclusion suggests using a science-based, multi-targeted treatment for hair loss instead of just biotin.
43 citations,
October 1955 in “The journal of nutrition/The Journal of nutrition” Germ-free rats need biotin for growth and have different vitamin metabolism compared to regular rats.
11 citations,
February 2019 in “Journal of Cosmetic Dermatology” Low zinc and biotin levels linked to male hair loss; supplements may help.
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.
57 citations,
February 2018 in “Journal of the American Academy of Dermatology” Biotin supplements are not proven to improve hair or nails and may interfere with medical tests.
27 citations,
July 1946 in “The journal of nutrition/The Journal of nutrition” Biotin and inositol are crucial for pig health and growth.
21 citations,
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.
10 citations,
September 2013 in “Nutrition” The ketogenic diet can worsen biotin deficiency, suggesting a need for biotin supplements.
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.
2 citations,
August 2020 in “JCRPE” A girl with Denys-Drash syndrome was misdiagnosed due to biotin affecting her hormone test results.
74 citations,
July 1979 in “Lancet” Biotin treatment can significantly improve hair loss and motor functions in certain metabolic disorders.
7 citations,
January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
September 2022 in “Farmacja Polska” Biotin is important for health, but taking extra usually doesn't help unless you're deficient.
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.
277 citations,
July 2002 in “Molecular Endocrinology” Removing part of the vitamin D receptor stops vitamin D from working properly.
205 citations,
March 2012 in “Science Translational Medicine” PGD2 stops hair growth and is higher in bald men with AGA.
140 citations,
April 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzyme 25 Hydroxyvitamin D 1 α-Hydroxylase is essential for healthy skin and recovery after skin damage.
104 citations,
May 2003 in “Endocrinology” Lampreys have a functional vitamin D receptor that may help detoxify harmful substances.
81 citations,
January 2006 in “Journal of cellular physiology” Mice without the vitamin D receptor gene lose hair due to disrupted hair follicle cycles.
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.
28 citations,
March 2017 in “Endocrinology” Removing vitamin D and calcium receptors in mice skin cells slows down skin wound healing.
20 citations,
May 2016 in “Journal of Cosmetic Dermatology” Low vitamin D receptor levels found in hair loss patients; topical vitamin D treatment suggested.
10 citations,
October 2017 in “Pediatric neurology” Biotin and acetazolamide improved hair and nail growth, mental function, and reduced headaches in a child with autism.