La Roche - Posay Kerium Anti-Hair Loss Shampoo-Complement has a double action with a unique synergy of active ingredients to break the hairloss cycle at any point. Madecassoside, the anti-hairloss innovation derived from research on inflammation, to resorb micro-irritations that accelerate hair loss. Arginine + Vitamin B5, stimulates hair bulb irrigation and the production of capillary matter. Finally, the body-restoring base immediately gives the hair volume and density.