Copper deficiency lowers blood and liver copper levels in rats, but not in hair or bones.
10 citations
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May 1986 in “Experientia” Too much zinc in the diet can cause hair loss and color change in young mice by reducing copper in the body.
December 2023 in “Archives of iranian medicine” Higher iron levels in hair may increase the risk of esophageal cancer.
January 2016 in “Journal of animal research” Hair can help assess Copper and Zinc levels in dogs.
January 2007 in “Журнал Гродненского государственного медицинского университета” Plasmapheresis effectively treats total alopecia in children by reducing lead levels and promoting hair growth.