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This systematic review found insufficient evidence to support protective effects of selenium on polycystic ovary syndrome complications, despite some studies suggesting it may reduce insulin resistance and dyslipidemia.

This study found that both low and high dietary selenium levels reduced hair growth in adult dogs, with optimal growth observed at mid-range selenium concentrations.

This review discusses selenium's role in human and animal health, its deficiency's link to diseases in China, and the need for precise geochemical control data; it reports no new findings.

Selenium increased in hair but not in blood after taking supplements.

In this case report, the authors describe green hair discoloration in a patient attributed to the use of selenium sulfide.

This study found that small amounts of subcutaneously injected Se75 were deposited and retained in the hair of dogs for up to 316 days.

This study found that neither a single application nor prolonged exposure to selenium sulfide had a significant effect on hair growth or rest phase percentages.

This study found that urinary selenium to creatinine ratio and serum selenium concentrations quickly respond to changes in dietary selenium, making them useful biomarkers for assessing selenium status in dogs.

This study observed that selenium levels were lower in Sudanese children with malnutrition compared to healthy German children, with a good correlation between selenium and glutathione peroxidase activity.

Using Selenium Disulfide shampoo weekly helps prevent scalp dermatitis flare-ups.

This study found that boys in Mexico City with selenium intake below the recommended dietary allowance had lower odds of progressing to advanced stages of pubertal development, while no association was observed in girls.

This study found that growth affects selenium deposition in hair, nails, and other tissues of adult and weanling rats, indicating dietary and physiological factors may influence selenium levels.

This report describes a case of acquired yellow hair discoloration in a 77-year-old woman, potentially caused by applying selenium sulfide after bacitracin zinc to her scalp.

This study found that rabbits fed a diet deficient in Vitamin E developed severe muscular dystrophy that was not fully prevented by adding selenium, Vitamin E supplements, or natural feedstuffs, indicating other nutritional deficiencies.

This study found that both hard and soft selenium disulphide-based detergents significantly increased triglyceride levels in human hair, suggesting enhanced sebum production with reduced lipolytic activity, but showed no significant differences between their effects.

This review discusses the potential link between selenium supplementation and symptoms of chronic selenium toxicity, such as hair loss and nail dystrophy, due to excess intake leading to disruptions in hair and nail protein structure.

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.

This study found that one month of selenium supplementation improved liver and kidney function biomarkers and reduced severe hair loss in patients with beta-thalassemia major.

This study found no significant difference in serum levels of lead and selenium between patients with premature hair graying and those without it.

This review discusses the dual role of selenium in human health, highlighting both the dangers of deficiency and potential toxicity from over-supplementation, without presenting new clinical results.

This study found that an Enterobacter isolate demonstrated high resistance to selenate and effective sorption capacity, suggesting potential for bioremediation of selenium-contaminated environments.

This article discusses the dual nature of selenium, highlighting its essential metabolic roles and potential toxicity at high doses, and reports no new experimental findings.

In this case report, a 27-year-old woman experienced severe multisystem toxicity, including toxic encephalopathy, vision, and hearing loss, after ingesting selenium at occupationally high doses, suggesting such exposure can lead to previously unreported effects of vision and hearing impairment.

In this study of White cashmere goat ewes and their offspring in Tibet, selenium and vitamin E supplementation improved antioxidant capacity and serum biochemical indices and enhanced secondary hair follicle development in lambs, but did not significantly alter fecal microbiota composition.

In this study, researchers highlight the importance of correcting selenium and zinc deficiencies as part of a comprehensive management strategy for patients with autoimmune thyroiditis complicated by alopecia, as these elements play key roles in thyroid hormone biosynthesis and hair follicle function.

In this investigation, acute alopecia was linked to selenium-contaminated wheat in rural Maharashtra, India, following reports of sudden hair loss in 18 villages, with evaluations conducted in Machindrakhed and Bhondgaon.

This research highlights selenium's critical roles in various biological processes and underscores the potential health impacts of both its deficiency and excess, including increased mortality risk, poor immune function, and neurological issues.

In this study, women with acute telogen effluvium taking the Hair’InsideTM supplement for 84 days showed significant improvements in hair regrowth, shedding, brightness, and volume compared to placebo, with no reported adverse effects.

This review investigates how selenium, a trace element found in wheat, may impact hair health by examining its biochemical role in hair follicle biology and its potential therapeutic and toxicological effects.

This study investigates differences in nutritional status, vitamin, and mineral levels between individuals with telogen effluvium and a control group, aiming to understand the nutritional factors involved in this condition.