27 citations
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January 2015 in “International Journal of Trichology” This study found that a marine-extract dietary supplement significantly reduced hair shedding and increased hair diameter in premenopausal women with subclinical hair thinning or hair loss after 6 months of use.
27 citations
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June 2010 in “Journal of the American Academy of Dermatology” Excessive selenium in supplements can cause hair loss and nail issues.
5 citations
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September 2017 in “Journal of Cosmetic Dermatology” This review of clinical data found that an oral marine supplement increased hair growth and thickness while reducing hair loss in women and men with thinning hair, suggesting it is a safe and effective treatment.
August 2025 in “Journal of Cosmetic Dermatology” This study found that a novel dietary supplement, AGA-P, when combined with minoxidil and finasteride, significantly improved the clinical efficacy of these drugs for treating mild-to-severe androgenic alopecia compared to drug treatment alone over six months.
February 2024 in “Animals” This study found that supplementing pregnant Hanshan white cashmere goats' diets with selenium yeast led to higher birth weights, improved cashmere quality and yield, and enhanced hair follicle development in their offspring, possibly through increased antioxidant capacity.
January 2024 in “Journal of Ayurveda and integrative medicine” This paper discusses the potential of millets as a dietary intervention to help manage chemotherapy side effects in cancer patients, suggesting that their nutrient profile and various health benefits could support treatment without increasing medication burden.
January 2020 in “University of the Western Cape Electronic Theses and Dissertations Repository (University of the Western Cape)” This study explored dietary supplement use in Gaborone, Botswana's fitness community, finding widespread use especially among educated young adults and limited awareness of potential side effects.
May 2011 in “Utrecht University Repository (Utrecht University)” This study found no statistically significant difference in the severity of insect bite hypersensitivity symptoms between horses receiving a nicotinamide supplement and those receiving a placebo.
March 2024 in “Animal nutrition” This study found that sows consuming beet pulp had higher feed intake and improved litter performance during heat stress, while a high-fiber diet enhanced insulin levels, suggesting dietary fiber's importance for reproductive and metabolic health in sows.
March 2021 in “World rabbit science” This study found that taurine dietary supplementation could reduce lipid metabolism, enhance antioxidant capacity, and improve hormone levels in Angora rabbits, with 0.2% taurine increasing wool production.
23 citations
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January 1991 in “Journal of Animal Science” In this study, dietary biotin supplementation showed no significant benefit on reproductive performance in sows or pre-weaning growth and mortality in piglets.
11 citations
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September 2012 in “Journal of animal physiology and animal nutrition” This study demonstrated that mink hair growth and pelt quality significantly depend on dietary protein levels and DL-methionine supplementation during the growing-furring period.
7 citations
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March 2023 in “Frontiers in Veterinary Science” This study found that camelina oil supplementation was comparable to flaxseed and canola oil in supporting skin and coat health and managing inflammation in dogs over 16 weeks.
December 2025 in “International Journal of Clinical Medical Research” This review explores the role of nutrition and probiotics in enhancing skin, hair, and nail health through gut microbiota, highlighting the potential of nutritional interventions for cosmetic benefits via the gut-skin axis.
382 citations
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February 2010 in “Archives of Internal Medicine” This study identified that high concentrations of selenium in a liquid dietary supplement caused a widespread outbreak of poisoning, revealing the importance of stricter manufacturing standards.
12 citations
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March 2019 in “Cosmetics” In this study, a combined regimen of an oral supplement with Pinus pinaster, Grape seed extract, vitamins, and minerals, plus high SPF sunscreen, significantly improved mild-to-moderate facial melasma in 30 women over 84 days, reducing pigmentation and enhancing cosmetic appearance with no reported adverse effects.
October 2008 in “Trace Elements and Electrolytes” In this study, perimenopausal women with initially high hair concentrations of calcium, magnesium, and silicon experienced a decrease in these elements after intermittent dietary supplementation with calcium, magnesium, silicon, and vitamin D.
17 citations
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January 2020 in “Molecules” This study found that 42% of red yeast rice dietary supplements did not list monacolin concentrations on their labels, and only half of those that did contained the declared amounts.
7 citations
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January 2017 in “Annals of Dermatology” This study found that among patients with twenty-nail dystrophy, those treated with oral cyclosporine in combination with a dietary supplement showed significantly better improvement in nail condition and quality of life than those treated with the supplement alone.
November 2024 in “PubMed” Results of the effect and safety of a gummy supplement with B vitamins, zinc, and botanicals on hair growth and quality in women with thinning hair are not reported in this abstract.
The authors of this study concluded that higher calcium levels in hair may indicate early metabolic changes leading to osteopenia or osteoporosis in menopausal women, even before detectable by standard DEXA imaging.
1 citations
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October 2017 in “Food Additives & Contaminants: Part A” This study identified a new minoxidil analogue called triaminodil in an illegal hair-growth supplement, but no data on its chemical, toxicological, or pharmacological properties are available yet.
67 citations
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January 2007 in “Environmental health perspectives” This case report highlights that a woman experienced arsenic toxicosis from kelp supplements, manifesting as alopecia and memory loss, which resolved after stopping the supplements.
4 citations
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January 2020 in “Hair Therapy & Transplantation” This study reviewed the relationship between nutrients and hair loss, emphasizing that individual nutritional deficiencies require specific attention for effective non-pathological treatment, rather than relying on generic dietary supplements often based on tradition or commercial reasons.
3 citations
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February 2020 in “International journal of women’s dermatology” Most women with hair loss take more supplements than average, but these often don't help and can be risky and costly.
3 citations
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May 2018 in “Journal of nutritional health & food science” This review discusses the potential of a low-dose comprehensive cyclical nutrient therapy for enhancing hair growth and strengthening hair roots, but reports no new experimental results.
2 citations
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July 2023 in “Phytotherapy Research” This study found that people taking Serenoa repens for more than 14 days had a higher likelihood of serious adverse reactions, particularly when also using multiple or interacting supplements, although higher SR doses were linked to lower risk.
This source highlights concerns about the safety and efficacy of dietary supplements marketed for hair loss, citing a lack of FDA testing and potential risks such as adverse side effects, interference with medical tests, and withholding of ingredient information.
June 2021 in “Current developments in nutrition” In this open-label study, participants reported that the LustrivaTM BH-002 two-step system improved various aspects of hair, skin, and nail health and appearance after three months of use.