April 2017 in “The FASEB journal” Low selenium levels worsen health but increase lifespan in mice.
16 citations
,
December 2005 in “Journal of Animal Physiology and Animal Nutrition” Moderate selenium levels in a dog's diet are best for hair growth.
79 citations
,
April 1996 in “JAMA” Taking too many selenium supplements can cause serious health problems like hair loss and fatigue.
3 citations
,
July 2005 in “DOAJ (DOAJ: Directory of Open Access Journals)” Selenosis in calves causes health issues and changes in blood parameters.
3 citations
,
January 1995 in “PubMed” Selenium therapy improved health in cystic fibrosis patients with fewer side effects at a lower dose.
21 citations
,
June 1991 in “Journal of Inherited Metabolic Disease” Selenium deficiency caused symptoms in a child, which improved with selenium supplements.
27 citations
,
June 2010 in “Journal of the American Academy of Dermatology” Excessive selenium in supplements can cause hair loss and nail issues.
January 2013 in “University Libraries (University of Maryland)” Selenium helps protect cells from aging and damage, especially under stress.
11 citations
,
January 1993 in “Journal of Veterinary Diagnostic Investigation” Horses in western Iowa got sick from high selenium in local alfalfa hay.
April 2015 in “The FASEB Journal” Selenium deficiency worsens aging symptoms in mice.
1 citations
,
August 2023 in “Journal of cosmetic dermatology (Print)” Too much selenium can cause hair loss and nail problems.
January 2004 in “Chinese Journal of Aesthetic Medicine” High levels of sodium fluoride harm hair growth, but sodium selenite can reduce this harm.
126 citations
,
November 1987 in “The Journal of Pediatrics” Selenium deficiency can cause skin and hair color loss, muscle weakness, and blood cell changes, but these improve with selenium supplements.
93 citations
,
March 2014 in “Cochrane Database of Systematic Reviews” Selenium supplements do not prevent cancer and may have harmful effects.
12 citations
,
July 1964 in “Archives of Dermatology” Selenium sulfide shampoo doesn't affect hair growth or rest phases.
1 citations
,
January 2016 in “INTAS POLIVET” High selenium levels in some areas cause health issues in cows and buffaloes, but blood tests remain normal.
9 citations
,
September 1989 in “PubMed” Sudanese children with severe malnutrition have low selenium levels, which may affect their recovery.
618 citations
,
January 2018 in “Cochrane Database of Systematic Reviews” Selenium supplements do not prevent cancer and may increase certain health risks.
January 2005 in “The Chinese Journal of Dermatovenereology” High fluoride increases damage in hair follicles, but low selenium can reduce this damage at lower fluoride levels.
30 citations
,
September 2016 in “Aging Cell” Low selenium levels can extend lifespan but worsen health issues.
April 2024 in “Research Square (Research Square)” Selenium supplements can help improve symptoms and metabolic markers in lupus patients.
23 citations
,
October 1995 in “PubMed” Selenium exposure at work caused the worker's complete hair loss.
20 citations
,
August 1960 in “PubMed” Selenium sulfide may affect hair root health.
September 1980 in “PubMed” Using selenium disulfide on guinea pigs increased hair loss.
January 2005 in “Zhonghua xingwei yixue yu naokexue zazhi” Selenium and iodine deficiencies cause delayed growth and abnormal neural behavior in rats.
January 2007 in “Chinese journal of plastic surgery” Sodium fluoride increases cell death in hair follicles, but sodium selenite can reduce this effect.
March 2025 in “Skin Appendage Disorders” Selenium disulfide shampoo effectively reduces dandruff and improves scalp health for all hair types.
6 citations
,
March 2011 in “Experimental Dermatology” Too much or too little selenium in the diet can cause hair loss and graying in mice.