Kérastase Spécifique Bain Divalent is a scalp-balancing shampoo which targets oily scalps without drying out lengths and ends. It regulates the overproduction of sebum and treats the hair fibre from root to tip to restore softness and shine.Bain Divalent stops hair roots from becoming greasy too quickly while the lengths and ends stay nourished and smooth. The anti-oiliness shampoo purifies the scalp with a formula that contains glycine and vitamin B6. Glycine instantly leaves your hair feeling refreshed while vitamin B6 strengthens the hair fibre.