abstract |
(57) [Summary] [Structure] Addition of a base to an α-hydroxy acid aqueous solution and heat treatment are carried out, and p A skin cosmetic comprising a method for stabilizing H and a pH-stabilized aqueous solution of α-hydroxy acid obtained by the method. [Effect] The aqueous solution of α-hydroxy acid of the present invention is excellent in pH stabilization, and when it is mixed, a skin cosmetic having an excellent anti-wrinkle effect and an excellent feeling in use can be obtained. |