Chemical Structure Of Body Hair

The most important element in the chemical structure of hairs is proteins, which form 65-95% of its weight. Other elements are water, pigments, lipids and trace elements. Amino acids in hair structure form long protein chains by linking into each other with covalent chemical bonds called peptide bonds.



Body hair is made up of a protein called keratin. Keratin is found in fingernails and skin. This protein is insoluble. Keratin is mostly rich in an amino acid called cysteine.