Kao Corporation

Toshiya Ono

Minoru Nagai

Akira Yamamuro

Tsutomu Fujimura

Yoshinori Takema

Seiji Yamasaki

Noriko Ito

Hiromitsu Kawada

Mayumi Tsuchiya

Kazue Tsukahara

Atsushi Tomokuni

Ayumi Ogawa

Masayoshi Aoshima

Hiroko Tsuda

Fiber-containing detergent composition

Wrinkling modifiers

The invention relates to wrinkling modifiers and anti-aging cosmetic compositions which each comprise a guanidine derivative represented by the following general formula (1):

Method of modifying wrinkles using guanidine derivatives

A guanidine derivative represented by formula (1), (2), (3) or its acid addition salt and a production process thereof

Guanidine derivatives and process for their production

A wrinkle-care product, an aging-preventive cosmetic and a skin cosmetic each comprising a guanidine derivative of formula (I) or an acid addition salt thereof: ##STR1## wherein R1 represents a hydrogen atom, a lower alkyl group or --(AO).sub.m --(BO).sub.n --D--E �wherein A and B may be the same or different and each represents an alkylene group having 2 to 8 carbon atoms; D represents a binding hand, --CO--, or an unsubstituted or substituted alkylene group having 1 to 6 carbon atoms; E represents a hydrogen atom, a lower alkyl group, an aralkyl group or an unsubstituted or substituted aryl group; m is a number of from 1 to 6; and n is a number of from 0 to 6!; k is a number of from 1 to 10; and G represents a hydrogen atom, a hydroxyl group, a carboxyl group, a sulfonate group or a phosphate group. These products are excellent in the effects of inhibiting wrinkling and smoothing wrinkles without damaging the physiological conditions of the skin.

Wrinkle-care product

A guanidine derivative represented by formula (1), (2), (3) or its acid addition salt and a production process thereof ##STR1## wherein each of A and B is a C.sub.2 -C.sub.8 alkylene, D is a single bond, --CO-- or a C.sub.1 -C.sub.5 alkylene, E is H, a lower alkyl or the like, m is 1 to 6, n is 0 to 6 and R.sup.1 is H, a lower alkyl or the like, l is 1 to 10 and G is H, --OH or the like and a skin cosmetic containing the same. It can exert excellent keratin layer softening effect continuously for a long period of time.

Cosmetics containing guanidine derivatives

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Tokyo, Japan

Toshiya Ono