Supplements improve health, appearance, and athletic performance.
February 2026 in “Animals” Methionine supplementation in low-protein diets improves growth, fur quality, and gut health in blue foxes.
27 citations
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January 2015 in “International Journal of Trichology” The supplement helps improve hair growth and reduce hair shedding.
November 2022 in “Animal Bioscience” Adding methionine to a low-protein diet helps Angora rabbits grow better fur.
5 citations
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September 2017 in “Journal of Cosmetic Dermatology” A marine protein-based dietary supplement can safely boost hair growth and reduce hair loss in people with thinning hair.
January 2017 in “OPAL (Open@LaTrobe) (La Trobe University)” Collagen peptides may boost skin and hair-related gene expression.
Collagen peptides may boost skin and hair-related gene expression.
11 citations
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September 2012 in “Journal of animal physiology and animal nutrition” Higher protein diets with DL-methionine improve mink hair growth and fur quality.
38 citations
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May 2000 in “Livestock production science” Giving high-quality protein or methionine supplements helps improve hair growth in Angora goats and, to a lesser extent, in Cashmere goats.
20 citations
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September 1998 in “PubMed” Gorillas in Gabon improved after protein supplements were added to their diet.
March 2022 in “Annals of Bariatric Surgery” Protein supplements with zinc, iron, and B vitamins reduce hair loss after sleeve gastrectomy.
September 2013 in “Hair transplant forum international” The document's content could not be understood or processed.
14 citations
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January 2020 in “Dermatology Online Journal” Some dietary supplements, like vitamins B6/B12, iodine, whey protein, and muscle-building products, can cause or worsen acne.
6 citations
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April 2012 in “PubMed” Enteral supplements can improve symptoms of Cronkhite-Canada syndrome.
2 citations
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August 2024 in “Current Developments in Nutrition” Iranian bodybuilders often use supplements like vitamins C, D, and whey protein, but they experience side effects like skin rashes and hair loss.
February 2024 in “Indian Dermatology Online Journal” Sports supplements can cause skin problems and may contain harmful substances.
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.
6 citations
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October 2015 in “Experimental dermatology” Adenine helps delay aging in human hair follicle cells.
2 citations
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November 2025 in “Nutrition Journal” Probiotic supplements may help reduce inflammation and oxidative stress in women with PCOS.
September 2024 in “South Eastern European Journal of Public Health” Treatment improved PCOS symptoms and reduced BMI and certain immune factors.
3 citations
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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.
Boosting certain cell signals can prevent hair loss from chemotherapy and radiation.
January 2023 in “Figshare” Minor skin injuries can boost hair growth by increasing TNF-α.
2 citations
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April 2017 in “Plastic and Aesthetic Nursing” Platelet-rich plasma therapy shows promise for hair regrowth in alopecia patients.
January 2023 in “Figshare” Mouse skin and hair aging starts at 200 days, with changes in hair follicles and more white hairs as signs of aging.
79 citations
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January 2017 in “Dermatology practical & conceptual” Correcting nutrient deficiencies may help with hair loss, but the benefits of supplements without a deficiency are uncertain and could be harmful.
81 citations
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May 2019 in “Frontiers in Endocrinology” Melatonin may improve some hormonal and inflammatory issues in women with PCOS.
9 citations
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March 2014 in “TURKDERM” Proper nutrition is crucial for healthy hair growth.
11 citations
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January 1987 in “Australian Journal of Experimental Agriculture” Protein supplements helped goats maintain weight and increased fleece growth, but not cashmere growth.
March 2025 in “Journal of Medical Research and Surgery” Proper diet, monitoring, and protein supplements are crucial after bariatric surgery to prevent severe malnutrition.