Alpecin Double Effect Shampoo fights against dandruff and hair loss hereditary with caffeine complex. In the first step, this 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.
The caffeine-containing active ingredient combination helps preserve vigorous hair growth. When applied, it causes a fresh tingling on the scalp; its active ingredients travel along the hair shaft and form a depot sufficient for up to 24 hours.