Permanent Low-Toxicity Hair Dye Based on Pregrafting Melanin with Cystine. 2022

Chen Zheng, and Jing Huang, and Ting Li, and Yang Wang, and Jie Jiang, and Xuhui Zhang, and Lin Huang, and Bihua Xia, and Weifu Dong
The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.

A pregrafting strategy is presented to construct covalent bridges between synthetic melanin, i.e., polydopamine (PDA), and hair for permanent hair dyeing. As a result, PDA is more uniformly distributed throughout the hair surface, and the dyed hair shows higher color intensity and better durability to washing than the control samples dyed with PDA directly at the same conditions.

UI MeSH Term Description Entries
D008543 Melanins Insoluble polymers of TYROSINE derivatives found in and causing darkness in skin (SKIN PIGMENTATION), hair, and feathers providing protection against SUNBURN induced by SUNLIGHT. CAROTENES contribute yellow and red coloration. Allomelanins,Melanin,Phaeomelanins
D003553 Cystine A covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine. Copper Cystinate,L-Cystine,L Cystine
D006197 Hair A filament-like structure consisting of a shaft which projects to the surface of the SKIN from a root which is softer than the shaft and lodges in the cavity of a HAIR FOLLICLE. It is found on most surfaces of the body. Fetal Hair,Hair, Fetal,Lanugo,Fetal Hairs,Hairs,Hairs, Fetal
D006202 Hair Dyes Dyes used as cosmetics to change hair color either permanently or temporarily. Coloring Agents, Hair,Dyes, Hair,Hair Colorants,Hair Dye,Agents, Hair Coloring,Colorants, Hair,Dye, Hair,Hair Coloring Agents

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