Caffeine promotes hair growth. Slows down hereditary hair loss. Fine and weakened hair becomes stronger and can be styled better. Stimulates hair roots during washing. Prevents hair loss. By leaving out softeners, the hair will have more grip. Leave on the scalp for two minutes - from application to rinse. A daily hair wash with Alpecin Caffeine Shampoo C1 immediately provides the hair roots with the activating ingredient.