It had been researched amply that the hydrolytic factors of sericin protein and the sericin peptides affinity to the human hair and the surface and mechanical properties of the human hair adsorbed sericin peptides.The experimental results showed that the sericin peptides of the suited molecular weight had more affinity to the human hair than sericin and could form a transparent film on the surface of the hair,which not only could protect the hair from the damages caused by the external factors to improve th...