rinse-off products protect hair from pollution (3) – cosmetic silicone oil manufacturer

technology to protect against deposited contamination from leave-on cosmetics has been released and launched on the market. however, depositing enough ingredients from rinse-off products such as shampoos to protect the hair surface is a challenge due to the high surfactant content and rinsing process. air pollution contains toxic gases (ozone, no, so, etc.), liquid droplets (tar, cooking/fuel fumes) and solid particles (pm2.5/10, heavy metals, etc.). air pollution protection includes not only protection of hair from chemical damage (anti-pollution), but also the physical adhesion of pollutants (anti-dust). 8

in the current study, acrylamidopropyl ammonium trichloride/acrylamide copolymer (aptac/acm) has been evaluated in silicone-free and silicone-containing shampoos to protect hair from chemical damage, i.e. physical effects of protein degradation and dust adhesion. a new conditioning polymer deposition mechanism is introduced. experiments show that the aptac/acm copolymer deposited on the hair surface will form a transparent, elastic and hydrophobic composite layer with anionic surfactants during shampooing. this hydrophobic complex prevents dust deposits and effectively protects hair from damage.