Nioxin Instant Fullness Dry Cleanser instantly refreshes hair and gives the appearance of denser, fuller-looking hair. As a part of 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*! *vs. hair treated with a 24h average amount of sebum.