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Details For: Composition of Hair

Term  
Composition of Hair

Definition  
Hair is composed chiefly of a protein called keratin which is present in all horny growths such as the fingernails. The chemical composition of hair is carbon (50.65%), hydrogen (6.36%), nitrogen (17.14), sulphur (5.0%) and oxygen (20.85%).

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Notes  
The chemical composition of hair varies according to the color of the hair. Dark hair has the most carbon with less amounts of oxygen and sulphur. Light hair contains less carbon and hydrogen but more oxygen and sulphur.  

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