Kerastase Nutritive Bain Oleo-Relax Shampoo 8.5oz / 250ml A smoothing & disciplining shampoo for unruly hair prone to frizz caused by humidity. This nourishing shampoo offers volume control without weighing down hair. Frizz is controlled for 24h even under 80% humidity. Nourished at the core, hair is cleansed, deeply treated and prepared for the masque treatment.