Biolage Advanced FullDensity Thickening Shampoo gently cleanses to remove follicle clogging impurities to instantly make hair look and feel healthier. When used as a system of Shampoo and Conditioner, breakage is significantly reduced for fuller-looking, thicker-feeling hair. - Hair feels thicker- Breakage reduced- Fortifies- Removes follicle-clogging impurities