Kerastase Specifique Bain Prevention GL is a thickening shampoo that gives body & tone to fine thinning hair. Your hair will feel thicker. Kerastase Specifique Bain Prevention GL has a soothing formula to calm the scalp with cooling agents. This densifying hair bath stimulates the scalp & gives volume to thinning hair. It boosts scalp micro-circulation on application & adds texture to the lengths. The scalp can be prone to temporary or longer-lasting imbalances. The products in the Kerastase Specifique Collection reply to scalp concerns, leaving you with a well-balanced scalp & conditioned hair.