Schwarzkopf Professional 3D MEN Root Activator Shampoo combines Panthenol, Taurin and Carnitine which work together on hair, scalp and roots to increase the production of hair growth factors and deliver nutrients to the hair follicle. Panthenol provides moisture for the hair. Taurin strengthens the scalp and Carnitine stimulates and activates hair roots.Schwarzkopf Professional 3D MEN Root Activator Shampoo helps to regain density when use as part of a 24 week hair growth regime.