Kerastase Oleo Relax Serum 4.2oz is an amazing product designed for dry and rebellious hair. It controls volume and provides smoothness, shine and long-lasting frizz protection. The hair is left glossy with an exceptional smooth touch. Formulated to groom dry, frizzy, unmanageable hair. Provides extra nourishment and leaves hair feeling soft, supple, manageable and shiny all day.