PROBLEM TO BE SOLVED: To provide a cosmetic composition which has a moisturizing effect, and whose ability to inhibit the activity of hyaluronidase which degrades hyaluronic acid which has moisturizing ability is high.SOLUTION: A cosmetic composition comprises: 0.001 to 20 wt.% of at least one kind selected from sulfated cellulose which is obtained by sulfating crystalline cellulose having an average degree of polymerization of 100 to 300 with sulfuric anhydride or a complex of N,N-dimethylformamide and sulfuric anhydride, and salt thereof and 0.0001 to 80 wt.% of polyhydric alcohol. Thereby, the moisturizing effect of the sulfated cellulose and the ability to inhibit the activity of hyaluronidase are improved. Further, the cosmetic composition has excellent stability through inclusion of an electrolyte having pH buffering ability.COPYRIGHT: (C)2014,JPO&INPIT【課題】保湿効果があり、保湿性能を持つヒアルロン酸を分解するヒアルロニダーゼの活性阻害能が高い化粧料組成物の提供。【解決手段】平均重合度100~300の結晶性セルロースを、無水硫酸又はN,N-ジメチルホルムアミドと無水硫酸との錯体を用いて硫酸エステル化処理して得られる硫酸化セルロース及びその塩から選ばれる1種以上を0.001~20重量%と、多価アルコールを0.0001~80重量%と、を併用することにより、硫酸化セルロースの保湿効果及びヒアルロニダーゼ活性阻害能を更に高めることができる。更に、pH緩衝能を有する電解質を含有させた安定性に優れた化粧料組成物。【選択図】なし
