Now you can transport the unique active ingredient of caffeine to the hair roots during washing alpecin caffeine shampoo 250ml penetrates the scalp even when the shampoo has been rinsed out in just 120 seconds the active ingredient travels along the hair shaft direct to your hair follicles the shampoo doesnt contain any softeners eg hair silicone so it also helps to improve the hair structure after just a few washes fine and weakened hair becomes stronger and can be styled more easilyke