Smoothing shampoo for dry and unruly hair Discipline Bain Oleo-Relax (Shampoo) 250 ml — Hair treatmentDiscipline Bain Oleo-Relax by Kérastase is a smoothing shampoo for dry, unruly hair, offering immediate discipline and softness.CharacteristicsHairDirections for useApply to the hair as needed and proceed with your usual styling or washing routine.Ideal forChi seeks well-groomed hair with professional formulas.