January 2018 in “International journal of food and nutrition research” Intermittent iron and nutritional supplements can help reduce hair loss.
Two nutritional supplements improved hair growth and reduced hair loss in women with hair loss conditions.
December 2014 in “Sociedad (University of Buenos Aires)” A hair loss supplement with green tea caused liver damage in three people.
January 2014 in “Surgical and Cosmetic Dermatology” Nutritional supplements can significantly reduce hair loss in telogen effluvium after three months.
January 2014 in “Dermatology Review” Folate may reduce methotrexate side effects in psoriasis patients, but its impact on effectiveness is unclear.
September 2009 in “European journal of paediatric neurology” Biotin supplements did not significantly reduce hair loss in rats on valproic acid.
January 2005 in “Digital Access to Scholarship at Harvard (DASH) (Harvard University)” The FDA struggles to regulate hair loss supplements due to a law allowing unproven claims.
January 2002 in “Actas Dermo-Sifiliográficas” Long-term use of hormonal supplements can cause hair loss in women.
55 citations
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November 2019 in “Cellular and Molecular Gastroenterology and Hepatology” Biotin may help treat inflammatory bowel disease by reducing inflammation and improving gut health.
40 citations
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May 2018 in “PubMed” Nutrafol® Women's Capsules safely and effectively promote hair growth in women with thinning hair.
40 citations
,
July 1981 in “Journal of Neuropathology & Experimental Neurology” Copper injections improved symptoms and prevented brain damage in brindled mice.
23 citations
,
January 1991 in “Journal of Animal Science” Biotin supplementation in sow diets is unnecessary.
19 citations
,
July 2015 in “Journal of inherited metabolic disease” Methionine restriction works better than betaine for treating CBS deficiency symptoms in mice.
16 citations
,
March 2015 in “Dermatologic therapy” Zinc supplementation may be an important part of treating severe hair loss.
10 citations
,
January 2024 in “Dermatology Research and Practice” Taking a collagen and vitamin C supplement improves skin and hair health.
9 citations
,
July 2020 in “Journal of Animal Physiology and Animal Nutrition” Melatonin given to pregnant rabbits improved their babies' fur quality.
7 citations
,
December 2020 in “Endocrine-related Cancer” The over-the-counter supplement DHEA could make COVID-19 worse, especially in diabetics and people with G6PD deficiency.
5 citations
,
January 2012 in “Journal of nutrition & food sciences” The supplement improved hair, skin, and nails appearance and had long-term benefits.
5 citations
,
January 2007 in “Annals of Internal Medicine” Folic acid might help with age-related hearing loss.
3 citations
,
October 2022 in “Han'gug dongmul jawon gwahag hoeji/Han-guk dongmul jawon gwahak hoeji/Journal of animal science and technology” Adding L-glutamine to the diet of Hanwoo steers may boost their immune system and help them cope with heat.
2 citations
,
April 2016 in “Más dermatología” The supplement with Serenoa repens and Pygeum africanum significantly increased active hair growth and decreased rest phase hair in post-menopausal women with hair loss, with only mild digestive side effects.
1 citations
,
July 2022 in “Frontiers in Microbiology” MSM supplementation in kittens improves hair quality and growth rate without harming their health.
1 citations
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March 2014 in “Senses and Sciences” A supplement with Serenoa repens improved hair loss in a patient.
May 2026 in “SKIN The Journal of Cutaneous Medicine” Xtressé™ gummies are safe and may help improve hair in women with non-scarring hair loss.
May 2026 in “SKIN The Journal of Cutaneous Medicine” The supplement gummy and serum safely improve hair growth in women with hair loss.
May 2026 in “Journal of Cosmetic Dermatology” The supplement improved hair growth and reduced hair loss effectively.
February 2026 in “Animals” Methionine supplementation in low-protein diets improves growth, fur quality, and gut health in blue foxes.
January 2026 in “http://isrctn.com/” The supplement may improve hair growth and quality in women with mild to moderate hair loss.
October 2025 in “Journal of Drugs in Dermatology” Topical caffeine can help with hair growth and reduce hair loss safely.
May 2025 in “Journal of Ayurveda and Integrated Medical Sciences” Vedistry Amla + Tablets improve hair health and are safe to use.