A cosmetic method that reduces skin glycation rate by topically applying a cosmetic composition comprising an effective amount of nicotinamide riboside to a target portion of the skin during the treatment period. The duration of treatment is sufficient for the nicotinamide riboside-containing composition to improve the appearance of the skin, which looks unnatural due to glycation. In particular, the method makes it possible to reduce the yellowness of the skin associated with saccharification.処置期間中に有効量のニコチンアミドリボシドを含む化粧品組成物を皮膚の標的部分に局所的に塗布することによって、皮膚の糖化率を低下させる美容方法。処置期間は、ニコチンアミドリボシド含有組成物が、糖化に起因して血色が悪く見える皮膚の外観を改善するのに十分である。特に、本方法は、糖化に伴う皮膚の黄色度の低減を可能にする。