PROBLEM TO BE SOLVED: To provide a novel aminophenyl co-modified silicone having no accumulative property in hair, excellent in damage repair effect, and useful as cosmetics having a high conditioning effect, especially cosmetic component for hair.SOLUTION: There is provided an aminophenyl co-modified silicone compound represented by formula (I), where R1s are each a methyl group, R2s are each independently a methyl group or a hydroxyl group, R3s are each a phenyl group which may have 1 to 3 alkyl groups of 1 to 3 carbon atoms, R4 is (CH2)aNH-R5-NHR6 (in this formula, a is an integer of 1 to 10, R5 is an alkylene group of 2 to 10 carbon atoms, R6 is a hydrogen atom or an alkyl group of 1 to 10 carbon atoms), l, m and n are each independently a positive integer, l+m+n is 200 to 2,000, l:m:n is 50 to 80/:20 to 50:0.01 to 1.COPYRIGHT: (C)2014,JPO&INPIT【課題】毛髪への蓄積性がなく、ダメージ補修効果に優れ、高いコンディショニング効果を有する化粧料、特に毛髪用化粧料成分として有用な、新規なアミノフェニル共変性シリコーンの提供。【解決手段】式(I)[式中、各R1はメチル基を表し、各R2は、それぞれ独立して、メチル基又は水酸基を表し、各R3は炭素数1~3のアルキル基を1~3個有していてもよいフェニル基を表し、各R4は(CH2)aNH-R5-NHR6(式中、aは1~10のいずれかの整数、R5は炭素数2~10のアルキレン基、R6は水素原子又は炭素数1~10のアルキル基を表す)を表し、l、m及びnは、それぞれ独立して、正の整数を表し、l+m+nは200~2,000であって、l/m/nは50~80/20~50/0.01~1である。]で表されるアミノフェニル共変性シリコーン化合物。【選択図】なし