Alpecin's Double-Effect Caffeine Shampoo is specifically meant to target two problems: dandruff and hair loss. Formulated with caffeine, it re-energizes the hair and revitilises it while counteracting scalp problems effectively. 

This shampoo works through a two-step method: firstly, it loosens scaly, keratinous cells and removes dandruff from the scalp. Now that dandruff is removed, caffeine complex is then allowed to stimulate the hair by forming a 24-hour depot, thereby protecting the hair root from premature inactivity. As a result, hair loss is alleviated and all dandruff is eliminated for clean, healthy hair.