Alpecin Double Effect (200ml): The active caffeine ingredient stimulates existing male hair growth and prevents hair roots from prematurely becoming inactive, thereby slowing down hair loss. Simply leave on the hair for 2 minutes before rinsing off. 1st Effect: scaly, keratinous cells are loosened and dandruff is thoroughly removed from the scalp. 2nd Effect: with the scalp cleared from dandruff, the active caffeine complex can penetrate into the hair root and strengthen it against hereditary hair loss.
