Some medications, including retinoids, antifungals, and psychotropic drugs, can cause reversible hair loss if stopped or doses are reduced.
October 2023 in “The Cochrane library” The medicine baricitinib was found to notably improve hair regrowth in alopecia areata, but more research is needed on its side effects and other treatments.
September 2023 in “Stem Cells International” Substances from fat-derived stem cells can promote hair growth and counteract hormone-related hair loss by activating a key hair growth pathway.
May 2023 in “Journal of Clinical Medicine” New understanding and treatments for hair loss are improving, but more research is needed.
December 2022 in “Frontiers in Pharmacology” Tianma Gouteng decoction may help prevent hair loss and promote hair growth.
Hair loss after weight loss surgery can improve over time.
January 2021 in “HAMDAN MEDICAL JOURNAL” Finasteride treats hair loss and reduces prostate cancer risk.
241 citations
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January 2001 in “Reviews on Environmental Health” High selenium exposure can harm thyroid function, immune system, liver, skin, and may increase neurotoxicity and cancer risk.
49 citations
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February 2020 in “Scientific reports” The nanohybrid system significantly improved wound healing and showed strong antibacterial activity.
35 citations
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January 2001 in “Journal of Animal Science” High dietary selenium, especially inorganic, causes weight loss and selenosis in pigs, with effects varying by hair color.
35 citations
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April 1956 in “Journal of the American Medical Association” Selenium sulfide shampoo can cause hair loss, which stops when you stop using it.
23 citations
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August 1989 in “American Journal of Veterinary Research” High selenium diets in pigs cause health issues like weight loss, hair loss, and nerve damage.
20 citations
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August 1960 in “PubMed” Selenium sulfide may affect hair root health.
16 citations
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December 2005 in “Journal of Animal Physiology and Animal Nutrition” Moderate selenium levels in a dog's diet are best for hair growth.
16 citations
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January 1996 Selenium levels in Enshi District need careful monitoring to prevent health issues.
15 citations
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March 1997 in “International Journal of Dermatology” Selenium sulfide in anti-dandruff shampoos can turn hair green.
13 citations
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October 1960 in “Experimental Biology and Medicine” Selenium-75 stays in dog hair for up to 316 days.
12 citations
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July 1964 in “Archives of Dermatology” Selenium sulfide shampoo doesn't affect hair growth or rest phases.
11 citations
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January 1993 in “Journal of Veterinary Diagnostic Investigation” Horses in western Iowa got sick from high selenium in local alfalfa hay.
9 citations
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September 1989 in “PubMed” Sudanese children with severe malnutrition have low selenium levels, which may affect their recovery.
6 citations
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March 2011 in “Experimental Dermatology” Too much or too little selenium in the diet can cause hair loss and graying in mice.
4 citations
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January 1989 Hair and nails can indicate selenium levels in the body.
2 citations
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February 1983 in “International Journal of Cosmetic Science” Selenium disulphide detergents increase hair oiliness by boosting some lipids and reducing fatty acids.
1 citations
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September 2019 in “Journal of cosmetic dermatology” Lead and selenium levels don't cause premature graying.
1 citations
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June 2016 in “DOAJ (DOAJ: Directory of Open Access Journals)” The Enterobacter isolate AMS1-S8 is effective for removing selenium from wastewater.
December 2025 in “SHILAP Revista de lepidopterología” Correcting selenium and zinc levels may help manage hair loss in autoimmune thyroiditis.
September 2025 in “Clinical Toxicology” Contaminated wheat caused hair loss and other symptoms due to high selenium, but washing it with alkaline water helped.
Selenium is essential for health, but too little or too much can cause serious health problems.
February 2024 in “Journal of Geochemical Exploration” Selenium levels in soil, crops, and human hair in Northwest China are within safe limits.
October 2023 in “Èkologiâ čeloveka” People in Moldova have less selenium in their hair than recommended, which may contribute to hair loss.