PROBLEM TO BE SOLVED: To provide a hair cosmetic effective for hair protection and imparting smoothness and the like to the hair.SOLUTION: The hair cosmetic includes an organopolysiloxane defined in (i) or (ii) (i): an organopolysiloxane in which a substituent expressed by general formula (1) is connected to at least one of silicon atoms on an organopolysiloxane segment constituting the main chain, wherein X and Y are each independently a 1-10C divalent hydrocarbon group m is an integer of 1-4 Z represents an organic group represented by general formula (2), wherein Ra is a 2-12C divalent hydrocarbon group, and (ii) an organopolysiloxane in which a substituent represented by general formula (1) and a substituent represented by general formula (3) are respectively connected to separate silicon atoms in the organopolysiloxane segment, in general formula (1), X represents each independently a 1-10C divalent hydrocarbon group Z represents an organic group represented by the general formula (2) in general formula (3), X and Y are each independently a 1-10C divalent hydrocarbon group and n is an integer of 0-4.COPYRIGHT: (C)2012,JPO&INPIT【課題】毛髪保護に効果的で毛髪に滑らかさ等を付与できる毛髪化粧料の提供。【解決手段】(i)又は(ii)含有オルガノポリシロキサン。(i)式(1)(X及びYは炭化水素、mは1~4、Zは式(2))(Raは炭化水素)(ii)式(1’)、(3)(Xは炭化水素、Zは式(2))(Raは炭化水素)(X及びYは炭化水素、nは0~4)【選択図】図1