TLDR Hair mineral content can help diagnose certain common illnesses.
The study aimed to find the relationship between the mineral composition of human hair and various illnesses. Using ICP-OES and ICP-MS for multielemental analysis, it was discovered that individuals with respiratory infections or asthma had higher Zr content in their hair, those with vertigo had lower Ca, La, and Sr content, and migraine sufferers had higher W content. Nervous individuals had three times more K in their hair, while those experiencing hair loss had increased Cu levels. Higher Ca and La levels were found in the hair of individuals with dandruff, brittle fingernails, and white spots on fingernails. These findings suggested that hair mineral content could potentially be used to diagnose certain common illnesses.
70 citations
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February 2009 in “Biological Trace Element Research” 
32 citations
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November 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Most women preferred the 1% pyrithione zinc shampoo for better hair smoothness and less frizz while controlling dandruff.
29 citations
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January 2002 in “Biological Trace Element Research”
3 citations
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August 2020 in “Journal of cosmetic dermatology” The scalp care solution with Timosaponin B-II improved scalp hydration, reduced dandruff, and helped prevent hair loss.
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40 citations
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January 2018 in “International journal of trichology” Healthy scalp reduces hair loss by managing oxidative stress.
11 citations
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September 2012 in “Chinese science bulletin/Chinese Science Bulletin” Hair mineral content can help diagnose certain common illnesses.
1 citations
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December 2011 in “Journal of the American Academy of Dermatology” Using hair oil/grease may be linked to dandruff in African American girls.
January 2006 in “한국미용학회지” Unbalanced diet is the main cause of male pattern baldness, and rest and sleep are the best prevention.
