Do I really have to wash my hair every day?
Although shampoos were used almost exclusively to cleanse scalp and hair in the past, Dr. Wolff Research has now succeeded in developing a method for transporting caffeine all the way along the hair shaft into the hair based on a shampoo formula.
The caffeine remains detectable for up to 24 hours. As a result, regular application of caffeine shampoo stimulates the hair, thereby creating the prerequisite for vigorous and healthy hair growth.
Alternatively, you should massage Alpecin Caffeine Liquid into the scalp on the days you do not wash your hair to keep up the 24 hours caffeine depot.