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This study found that a new oral supplement with sulfurated amino acids and trace elements effectively improved hair growth and reduced hair loss in women with telogen effluvium and mild to moderate androgenetic alopecia.

This study reported that a natural complex showed good efficacy in improving hair loss in both male and female androgenetic alopecia over six months.

This study found that a low dose of finasteride over 12 weeks did not alter the lipid profile or adiposity index in atheroprone Ldlr−/− mice.

This study found that administering melatonin for 12 weeks to women with PCOS significantly reduced hirsutism, testosterone, and inflammation markers, while enhancing antioxidant levels compared to a placebo.

This review examines the use of selenium and vitamin E supplements for reducing prostate cancer risk, finding mixed evidence that suggests benefits may be limited to individuals with specific risk factors, like low baseline levels or smoking history, rather than broadly applicable.

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.

Excessive selenium in supplements can cause hair loss and nail issues.

This study found that a marine complex supplement significantly reduced hair shedding and increased hair growth in men with thinning hair over 180 days.

This review evaluates biotin's popularity and its purported benefits for hair improvement but finds no clinical evidence supporting its efficacy.

This study found that an oral marine protein supplement significantly increased hair growth and reduced hair shedding in women with temporary thinning hair over 90 days compared to a placebo.

In this study, antioxidant vitamins A, C, and E were found to help protect against intestinal damage caused by radiation in rats, with vitamin E being the most effective.

This article discusses misconceptions around mineral nutrition in beef cattle and emphasizes that sub-clinical deficiencies or toxicities, rather than overt symptoms, often cause economic losses, but it reports no new findings.

This review discusses the varied levels of evidence linking nutritional supplements and antioxidants to dermatological disorders, but it reports no new clinical results and highlights the need for rigorous trials.

This review discusses the strengths and weaknesses of existing studies on complex dietary supplements for hair loss, emphasizing the need for valid measurement methods like TrichoScale® to quantify effectiveness; it reports no new results.

This review found that supplements containing saw palmetto may improve hair quality and density in patients with androgenetic alopecia and telogen effluvium, but more large-scale RCTs are needed for conclusive evidence.

This study found that a spermidine-based nutritional supplement increased the number of anagen phase hair follicles in healthy humans, suggesting potential benefits for hair loss conditions.

This review discusses the presence of undeclared substances, including androgenic steroids, in sports supplements and emphasizes potential health risks, without providing new results; it advises caution and consultation on supplement use.

In this case study, a 14-year-old female with premature hair graying showed improved hair color after treatment with a topical Melitane 5% formulation and oral hair supplements.

In this study, saw palmetto supplements showed varied effects on cell growth in vitro and did not significantly inhibit growth in the hamster flank organ model despite a notable trend.

This case report describes a 33-year-old Indian male with Cronkhite-Canada syndrome who experienced complete symptom recovery within 5 months after starting a high protein diet, proton pump inhibitors, and zinc-vitamin supplements.

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.

This study found that an 8-week supplementation with specific probiotic strains improved hormonal markers and oxidative stress while decreasing inflammation in women with PCOS, although clinical symptoms like acne and hirsutism showed no significant improvement compared to the placebo group.

Biotin and collagen may improve hair health.

In this study, the researchers found that over half of the tested calcium food supplements had calcium levels exceeding the amounts declared by their manufacturers, indicating a need for better quality control.

This study observed that taking 500mg/day of Microcore’s Muttaijow ComplexTM for 12 weeks significantly improved the appearance of skin, hair, and nails in healthy middle-aged adults.

This study found that puppies fed organic selenium had better retention of selenium compared to those fed inorganic selenium, with no significant difference in coat quality or hair growth.

In this study, researchers found that most food supplement labels in Portugal recommend daily mineral doses exceeding the EU's Recommended Daily Allowance, with some even surpassing the Tolerable Upper Intake Level, raising safety concerns regarding potential adverse effects.

This study found that dietary supplementation with collagen, chondroitin sulfate, low-molecular weight hyaluronic acid, Pycnogenol®, and coenzyme Q10 significantly improved skin hydration, elasticity, nail hardness, and hair condition in patients with age-related dermatological changes after 12 weeks.

This study found that the nutraceutical gummy Xtressé™ may promote hair density and follicular growth in women with perceived hair thinning, offering a user-friendly alternative to traditional supplements.

This systematic review found that probiotic supplementation improved sleep quality, reduced depressive symptoms, and enhanced aspects of quality of life in women with PCOS, though the findings are limited by a small number of studies and variable methods.