A cosmetic comprising (A) a polymer having repeating units represented by the following formula (I) and repeating units represented by the following formula (II) ##STR00001## wherein each R.sup.1 may be the same with or different from each other and is a hydrogen atom or a methyl group, each of X.sup.1 and X.sup.2 is a divalent aromatic group having 2 to 10 carbon atoms or a group represented by the formula, --COOR.sup.7--, wherein R.sup.7 is an aliphatic-group bonded to A or B, A is an organopolysiloxane residue, and B is a group represented by the following formula (1), ##STR00002## wherein each R.sup.3 may be the same or different from each other and is an alkyl group having 1 to 20 carbon atoms and d is an integer of from 1 to 10.