A chemical reaction by cosmetic service items such as perm, dyeing, hair loss, a straight solvent, and ultraviolet rays causes hair amino acid to be induction amino acid. A protein component study of the hair classifies by one or several kinds of amin...
A chemical reaction by cosmetic service items such as perm, dyeing, hair loss, a straight solvent, and ultraviolet rays causes hair amino acid to be induction amino acid. A protein component study of the hair classifies by one or several kinds of amino acid study, morphologic analysis of the amino acid, and disconnected and peptide analysis. The hair fabric bundle which represents hair's strength, elasticity, pliability, growth direction, thickness, quality, color, etc. is consisted of crystalline region and amorphous region that constitute a bond material between the cell and cell. These areas are gathering together as an unbalance arrangement. It consist a structure unit that is made of four protein chains or tetrad. A molecular biology study on hair shape is the most basic theory to be able to resolve the technical problem that is a practical problem of hair form plasticity as human body molding design's material for the cosmetic service.