Abstract
To make eyes appear more attractive, it is necessary for mascara to curl eyelashes and separate each one from the others. Among ingredients, film-forming resin in mascara is known to affect the curl and separation of each eyelash. However, the relation of the film-forming resin's function to curling and separating eyelashes has not been investigated in detail. That caused a limitation in its ability to curl eyelashes significantly and separate each one. Thus, we hypothesized that we could create dramatic separate curl mascara by developing a mascara film with a high hardness and fast hardening speed. We succeeded in developing a new acrylic resin (SC resin) by selecting suitable monomers of acrylic resins. The SC resin led to a mascara that markedly curled the eyelashes and widely separated each one, producing more an attractive eye appearance.