73 citations
,
January 2013 in “Annals of Dermatology” People with hair loss, especially those with certain types, have lower zinc levels, and zinc supplements might help.
October 2014 in “Journal of Nutrition & Food Sciences” Higher copper and lower chromium and selenium in hair are linked to insulin resistance in visceral-obese adults.
7 citations
,
January 2002 in “Biological Trace Element Research” Children with pituitary dwarfism have higher zinc and copper, lower manganese, and similar iron levels in hair compared to normal children.
52 citations
,
December 1984 in “Journal of the American Geriatrics Society” Mineral levels in hair and serum don't help diagnose Alzheimer's.
2 citations
,
January 2011 in “프로그램북(구 초록집)” January 2026 in “Journal of Trace Elements in Medicine and Biology” Dogs have more iron and copper in their hair than cats, and outdoor animals have higher iron levels.
19 citations
,
January 2003 in “Polish Journal of Environmental Studies” Higher lead levels were found in mothers of children with malformations.
December 2023 in “Archives of iranian medicine” Higher iron levels in hair may increase the risk of esophageal cancer.
26 citations
,
October 2011 in “Biological trace element research” Low copper levels might cause premature graying of hair.
May 2014 in “The Journal of Alternative and Complementary Medicine” Higher levels of chromium, selenium, and copper in hair are linked to increased insulin resistance in visceral-obese adults.
June 2018 in “Korean Journal of Family Practice” 21 citations
,
April 2009 in “Trace Elements and Electrolytes” Autistic children have lower iron and higher selenium in their hair.
51 citations
,
March 1986 in “Acta Dermato Venereologica” Alopecia patients had similar element levels to normal people, except for differences in copper and low selenium.
15 citations
,
September 1970 in “Journal of Animal Science” Copper in the diet helps maintain hair color and mineral balance in calves.
Zinc levels and lymphocyte counts might be important in heart disease development.
15 citations
,
July 2012 in “Biological trace element research” Higher hair calcium to magnesium ratios and lower chromium levels in hair may indicate insulin resistance in Korean men.
3 citations
,
April 2023 in “Journal of Veterinary Internal Medicine” Dogs with epilepsy have different hair mineral levels than healthy dogs, possibly due to epilepsy or its treatment.
4 citations
,
May 2024 in “Biomolecules” Zinc and copper levels may affect erectile dysfunction by influencing hormone levels.
22 citations
,
November 2010 in “Toxicological & Environmental Chemistry Reviews” Smokers and people with dyed hair have higher levels of certain metals in their hair.
12 citations
,
June 2022 in “International Journal of Molecular Sciences” Copper boosts cell growth in rabbit hair follicles.
44 citations
,
November 2007 in “Journal of toxicology and environmental health. Part B, Critical reviews” Copper and zinc in hair can indicate health conditions.
10 citations
,
January 1980 in “Ultrastructural pathology” Green hair has high copper levels due to contaminated water and damaged hair cuticles.
39 citations
,
July 2007 in “Archives of Pharmacal Research” A tripeptide-copper complex may help hair grow by increasing cell growth and decreasing cell death.
3 citations
,
February 2016 in “Majallah-i dānishgāh-i ̒ulūm-i pizishkī-i Māzandarān/Journal of Mazandaran University of Medical Sciences” Some Kohl products in Iran have concerning heavy metal levels, needing stricter regulation.
January 2013 in “Food science and technology research” Green tea extract may increase copper levels in mouse hair without affecting liver copper.
June 2023 in “Research Square (Research Square)” Cupric citrate improves growth, nutrient use, and gut health in broilers.
13 citations
,
March 2010 in “International Journal of Cosmetic Science” Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
March 2024 in “International journal of molecular sciences” Zinc, copper, and iron are important for skin health and may help diagnose skin diseases.
30 citations
,
November 1985 in “American Journal of Veterinary Research” Switch hair can indicate magnesium and copper levels in beef cows.
1 citations
,
June 2025 in “Environmental Research” Most women had adequate essential elements except zinc, and lead levels were higher in peri-/post-menopausal women.