Structure and performance of cationic assembly dispersed in amphoteric surfactants solution as a shampoo for hair damaged by coloring.
In recent years, hair coloring gains popularity as a trend of consumer's hair care. This coloring frequently damages hair. In response to this, a new shampoo-base was developed for repairing hair damaged by coloring. The new shampoo-base was prepared by dispersing cationic assembly in a solution of amphoteric surfactants. The mixture of behenyl trimethyl ammonium chloride (C22TAC) and behenyl alcohol (C22OH) was applied as the cationic assembly, which are dispersed in amido propyl betaine laurate (LPB) solution. LPB, which behaves as an amphoteric surfactant, was used as the wash-base. It was verified from the results on the measurements of DSC, calorimeter polarization, cryo-SEM and X-ray diffraction that the cationic assembly has a crystalline structure in the LPB solution. The new shampoo-base was highly efficient to change the color-damaged hair from hydrophilic to hydrophobic. The friction level of the hair washed with the new shampoo-base recovered to the same state as that of healthy hair. The exfoliation of cuticle was reduced after washing with the new shampoo-base.
Nagahara
Yasuo
Y
Beauty Care Research Laboratories, Lion Corporation, Edogawa-ku, Tokyo, Japan. yasuonag@lion.co.jp
Nishida
Yuichi
Y
Isoda
Masanori
M
Yamagata
Yoshifumi
Y
Nishikawa
Naoki
N
Takada
Koji
K
D002412:Cations / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D020285:Cryoelectron Microscopy; D003902:Detergents / Q000737:chemistry / Q000494:pharmacology; D006197:Hair / Q000187:drug effects* / Q000648:ultrastructure; D006202:Hair Dyes / Q000009:adverse effects*; D006203:Hair Preparations / Q000009:adverse effects / Q000737:chemistry* / Q000494:pharmacology*; D006801:Humans; D057927:Hydrophobic and Hydrophilic Interactions; D008855:Microscopy, Electron, Scanning; D012996:Solutions; D013501:Surface-Active Agents / Q000737:chemistry* / Q000494:pharmacology*; D013696:Temperature; D014961:X-Ray Diffraction
D002412:Cations; D003902:Detergents; D006202:Hair Dyes; D006203:Hair Preparations; D012996:Solutions; D013501:Surface-Active Agents