Kao Corporation

Yukiko Sakaino

Akira Kawamata

Yukihiro Ohashi

Genji Imokawa

Tsutomu Fujimura

Yoshinori Takema

Yukihiro Yada

Minoru Nagai

Kazuhiko Higuchi

Taketoshi Fujimori

Ayumi Ogawa

A composition for external skin care comprising an amine derivative represented by the following formula (1), ##STR1## wherein R.sup.1 is a linear, branched, or cyclic saturated or unsaturated hydrocarbon group having 4-40 carbon atoms, and R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are individually a hydrogen atom or a hydrocarbon group having 1-10 carbon atoms, which may be substituted or unsubstituted by 1 or more hydroxy groups; or an acid addition salt thereof, in an amount from 0.0001 to less than 0.1% by weight; and a method of curing wrinkles and keratinization of the skin characterized by applying said amine derivative or its salt to the skin.

Composition for external skin care

Growing community of inventors

Utsunomiya, Japan

Yukiko Sakaino