Abstract
Amodimethicone, one of the silicone derivatives that have an excellent effect on hair conditioning, is widely used for hair care products. However, it is a problem that the feeling of the hair is ruined because amodimethicone accumulates on the hair surface when it is applied continuously (a phenomenon called “build-up”). In this study, we checked whether hydrolyzed silk PG-Propyl Methylsilanediol Crosspolymer (HPS), which consists of hydrolyzed silk protein, silicone and an alkyl group, suppressed the build-up of amodimethicone by mixing it with a conditioner containing amodimethicone. As results of the measurement of silicone quantity using an EDS (energy dispersive X-ray spectrometer) and sensory evaluation, we found that HPS suppressed the build-up of amodimethicone and maintained a good texture to the hair.
