PROBLEM TO BE SOLVED: To provide a cosmetic for hair capable of satisfying all of good foam quality, volume feeling of hair after washing and drying, and styling property continuing to the next day after washing. SOLUTION: (a) 0.01% by mass to 5% by mass of a fatty acid ester of polyglycerin having an average degree of polymerization of 3 to 20, and (b) an acyl-β-alanine type surfactant represented by the formula (1). A hair cosmetic containing 1% by mass to 20% by mass of the agent and 0.0005% by mass to 0.5% by mass of (c) proteoglycan. (The meanings of symbols in the formula are as described in the specification.) [Selection diagram] None【課題】泡質の良さ、洗髪し乾燥した後の毛髪のボリューム感、および洗髪後翌日まで続くスタイリング性のすべてを満足させ得る毛髪用化粧料を提供する。【解決手段】(a)平均重合度が3~20であるポリグリセリンの脂肪酸エステルを0.01質量%~5質量%、(b)式(1)で示されるアシル-β-アラニン型界面活性剤を1質量%~20質量%、および(c)プロテオグリカンを0.0005質量%~0.5質量%含有する、毛髪用化粧料とする。(式中の記号の意義は明細書中に記載の通りである。)【選択図】なし