HYALURONIC ACID SYNTHESIS PROMOTER, HAS2 mRNA EXPRESSION PROMOTER, PHARMACEUTICAL, FOOD, OR COSMETIC HAVING HYALURONIC ACID SYNTHESIS-PROMOTING ACTION, AND PHARMACEUTICAL, FOOD, OR COSMETIC HAVING HAS2 mRNA EXPRESSION-PROMOTING ACTION

摘要

A hyaluronic acid synthesis promoter or HAS2 mRNA expression promoter containing, as an active ingredient, at least a first fraction containing chrysin that is a fraction extracted from seeds of Oroxylum indicum by an aqueous organic solvent, another fraction obtained by purifying the first fraction, or chrysin. Also, a pharmaceutical, food, or cosmetic containing this hyaluronic acid synthesis promoter or HAS2 mRNA expression promoter. This hyaluronic acid synthesis promoter, HAS2 mRNA expression promoter, pharmaceutical, food, or cosmetic serves as a useful item using a fraction or component obtained from highly safe Oroxylum indicum.