MOST SUCCESSFUL SHAMPOO IN GERMANY Alpecin Caffeine Shampoo is the best-selling shampoo to fight thinning hair in men in Germany.* German engineering for your hair! *Nielsen. YOUR DAILY HAIR ROUTINE Use Alpecin C1 Black every day. Leave it on the scalp for only two minutes from application to rinse. Alpecin C1 Black comes without any softening silicones. CONTAINS SKIN ACTIVATOR Alpecin Caffeine Shampoo's effectiveness to help hair feel stronger and thicker has been demonstrated over many years of scientific research. Contains caffeine, zinc and niacinamide for healthy hair roots. HELPS TO FIGHT THINNING HAIR With its unique galenic formula and its optimal caffeine dosage (and other potent active ingredients) Alpecin C1 Black shampoo supports natural hair growth. NEW ADVANCED FRAGRANCE Alpecin C1 Black comes with a new Fragrance, specially developed for the modern man. Your hair will immediately get a better grip and can be perfectly styled.