ASCORBIC ACID DERIVATIVE OR SALT THEREOF, AND COSMETIC THEREOF

原文（中国語）

As a novel ascorbic acid derivative or a salt thereof that has the superior inherent functions of ascorbic acid such as a whitening action, a collagen production promoting action, and a moisture retaining action, while also being stable even when stored for a long period, demonstrating little change in color, change in smell, reduction in activity, and similar, the present invention provides an ascorbic acid derivative or a salt thereof wherein one hydrogen among the hydroxyl groups in the second position and the third position of ascorbic acid has been substituted with R—O—CH—CH(OH)—CH—, R—O—CH—CH(CHOH)—, R—CH(CHOH)—, R—CH(OH)—CH— (R being H, an alkyl group, an alkenyl group, or a phenyl group), HO—C(CH)—CH—, or HO—CH—C(CH)—. The present invention also provides a cosmetic including said ascorbic acid derivative or a salt thereof.