Nioxin Instant Fullness Dry Cleanser instantly refreshes hair and acts as a volumizing spray, giving the appearance of denser, fuller-looking hair. As a part of the Nioxin Professional hair thickening product line, this daily solution dry shampoo absorbs oil and grease, providing lightweight fullness, helping to prolong the fullness of the 3-Part System Kits. Hair is up to 2x fuller within seconds*! Spray on dry hair at the roots. Brush through. Style as usual.