PROBLEM TO BE SOLVED: To provide an agent exhibiting highly safe transdermal absorption-promoting and/or moisture-retaining property-improving effects without damaging sense of use when contained in a cosmetic while having the high transdermal absorption-promoting properties and the moisture-retaining properties-improving effects exhibiting excellent barrier function or the like, and to provide a cosmetic utilizing the agent.SOLUTION: The agent contains a phosphorylcholine-resembled group-containing compound represented by formula (1) (wherein, R1 and R2 are each 14-22C alkyl), and can be utilized for the cosmetic.COPYRIGHT: (C)2012,JPO&INPIT【課題】高い経皮吸収促進性や、優れたバリア機能等を示す保湿性向上作用を有しながら、化粧料に含有させた際に使用感を損なわず、安全性の高い経皮吸収促進及び/又は保湿性向上作用を示す剤、並びに該剤を利用した化粧料を提供すること。【解決手段】本発明の剤は、式(1)で表されるホスホリルコリン類似基含有化合物を含み、化粧料に利用することができる。【化1】(R1、R2:C14~22のアルキル基)【選択図】なし