Oasis Dry Mouth Moisturizing Mouthwash is a gentle alcohol-free formulation that doesn't leave your mouth dry. Oasis mouthwash moisturizes your mouth and helps protect it from drying out. Oasis moisturizing mouthwash has been specially designed for when your mouth feels parched or dry. It leaves your mouth feeling comfortable and your breath fresh. Fights bad breath. pH balanced. Lasts for up to 2 hours (can leave your mouth feeling hydrated for up to 2 hours).