Alpecin Tuning Shampoo 200ml A dark caffeine shampoo that maintains your dark shade and helps hair feel stronger. Hair tuning with colour effect for every hair wash. During each hair wash, dark colour pigments attach to the existing hair surface. The effects becomes gradually more pronounced with every hair wash. The caffeine complex encourages the appearance of healthy hair, making it look thicker and stronger. Alpecin Caffeine Liquid 200ml Daily leave-on tonic that helps hair feel stronger and suitable for all hair and scalp types. The Caffeine in the Alpecin formula travels along the hair and forms a depot of the ingredient for up to 24 hours. Alpecin Caffeine Liquid has a refreshing effect you can feel on the scalp, leaving the hair energised.