Hair treatment agents include at least one 4-morpholino-methyl-substituted silicone, which comprises in each case at least one of the structural units of the formulae (I), (II) and (III) as described herein, where * is a bond to one of the structural units (I), (II) or (III) or an end group B (Si-bound) or D (O-bound) B represents a group —OH, —O—Si(CH3)3, —O—Si(CH3)2OH, —O—Si(CH3)2OCH3 D represents a group —H —Si(CH3)3, —Si(CH3)2OH, —Si(CH3)2OCH3 A represents an O-bound structural unit (I), (II) or (III) or an O-bound oligomeric or polymeric radical including structural units of the formulae (I), (II) or (III) or half of a connecting O atom to a structural unit (III) or represents —OH n, m and o represent whole numbers between 1 and 1000.
