Alpecin Double Effect Shampoo loosens scaly, keratinous cells and thoroughly removes dandruff from the scalp. This clears the way for the caffeine complex: In the second step, the active ingredients penetrate into the hair root and strengthen it against hereditary hair loss.
Why double effect?
The two most frequent scalp problems affect men: About half of all men have a predisposition for premature hair loss and about one-third suffers from dandruff. This was also confirmed by a representative survey with 1.2 million men: About one out of four men suffers from dandruff, and about 50% of all polled men suffer from hair loss. For these men, Dr. Wolff Research has developed a solution that simultaneously counteracts both problems. The world's first shampoo against dandruff and hereditary hair loss