July 2025 in “Ecotoxicology and Environmental Safety” Higher levels of molybdenum and lead in hair are linked to increased cholesterol and dyslipidemia risk.
January 2004 in “Weiliang yuansu yu jiankang yanjiu” Diabetics have lower chromium, manganese, and copper, but higher iron in their hair.
January 2011 in “Nuclear Techniques” Lead levels in hair increased due to environmental exposure, while iron, copper, and zinc levels stayed stable.
People with hair loss have more heavy metals in their hair.
6 citations
,
January 2018 in “PubMed” Heavy metals might contribute to hair loss in Telogen Effluvium.
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.
September 2018 in “BAUST Journal” 
March 1963 in “Sangyo Igaku” Women generally have higher levels of iron, copper, and zinc in their hair than men, with differences increasing with age.
4 citations
,
May 2024 in “Biomolecules” Zinc and copper levels may affect erectile dysfunction by influencing hormone levels.
2 citations
,
June 2016 in “Russian Journal of Skin and Venereal Diseases” People with alopecia areata have lower blood zinc and iron, and higher hair iron, copper, chromium, and nickel.
109 citations
,
January 1980 in “Science of the total environment” Analyzing trace elements in human hair is complex and needs a standardized method.
January 2004 in “Trace Elements Science” Diabetics have lower chromium, manganese, and copper, but higher iron in their hair.
65 citations
,
August 2016 in “Metabolic brain disease” Children with autism have lower levels of essential and toxic trace elements 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.
21 citations
,
April 2009 in “Trace Elements and Electrolytes” Autistic children have lower iron and higher selenium in their hair.
1 citations
,
March 2019 in “Hygiene and Sanitation” Heavy metals can damage skin and hair in mice.
Hair samples showed changes in chemical elements over time and location in Venezuela.
11 citations
,
March 1959 in “Journal of Histochemistry & Cytochemistry” Sulphur, phosphorus, and metals are distributed differently in animal skin follicles, with variations in detection speed and location.
July 1993 in “Journal of Radioanalytical and Nuclear Chemistry” Mouse hair element patterns vary, making it unreliable for tracking time.
8 citations
,
July 2002 in “X-Ray Spectrometry” Elemental composition of hair affects its x-ray diffraction patterns.
5 citations
,
January 1997 in “Journal of Occupational Health” The method effectively maps lead and zinc in hair, aiding understanding of heavy metal exposure risks.
January 2013 in “Victoria University Research Repository (Victoria University)” An elemental database for Chinese herbal remedies was created to explore the role of inorganic species in medicine.
June 2026 in “Journal of Cosmetic Dermatology” FFA patients have higher metal levels in hair, possibly linked to product use.
52 citations
,
January 2020 in “Scientific Reports” NLCs with manual massage greatly improve clobetasol delivery to hair follicles.
12 citations
,
July 2020 in “International Journal of Pharmaceutics” Iron oxide nanoparticles improve skin penetration and drug release for hair loss treatment.
26 citations
,
April 1975 in “Journal of Wildlife Management” Moose hair mineral levels vary by season and location, indicating environmental impacts.
8 citations
,
February 1997 in “International journal of environmental analytical chemistry” Most medicinal plants in Mexican folklore have safe element levels, but arsenic exceeds safe limits in almost all.
January 2020 in “대한미용학회지” Permanent hair dye reduces sulfur content in both gray and black-brown hair.
Imbalances in metals and proteins may help understand and treat bipolar disorder and schizophrenia.