PROBLEM TO BE SOLVED: To provide cosmetic preparations with low-molecular hyaluronic acid as an active ingredient which improves permeability to the skin and a feeling of use (such as a feeling of stickiness), and which generates excellent skin-beautifying effect (improvement of the skin tension and gloss and the like, prevention and amelioration of sagging and wrinkles and the like of the skin).SOLUTION: The invention relates to cosmetic preparations with an unsaturated low-molecular hyaluronic acid or a salt thereof as an active ingredient, having an excellent skin permeability and a feeling of use, and exhibiting an excellent skin-beautifying effect based on an epidermal cell activation effect, a collagen production promotion effect, and a ceramide synthetase activity enhancement effect possessed by the unsaturated low-molecular hyaluronic acid concerned or a salt thereof.COPYRIGHT: (C)2015,JPO&INPIT【課題】皮膚に対する浸透性、及び使用感(べとつき感等)を改善し、かつ、すぐれた美肌効果(肌のハリ、ツヤ等の向上、肌のタルミ、シワ等の予防、改善)を奏する低分子ヒアルロン酸を有効成分とする化粧料を得ることを目的とする。【解決手段】 本発明は、不飽和型の低分子ヒアルロン酸又はその塩を有効成分とする化粧料であって、すぐれた皮膚浸透性及び使用感を有すると共に、当該不飽和型の低分子ヒアルロン酸又はその塩が有する表皮細胞賦活効果、コラーゲン産生促進効果、及びセラミド合成酵素活性亢進効果に基づく、すぐれた美肌効果を発揮するものである。【選択図】図1
