How do I use Alpecin Grey Attack Shampoo correctly and when will the first results be visible?

Use Alpecin Grey Attack Shampoo daily and leave it on for two to five minutes - from application to rinsing. The colour effect becomes more intense with the length of the exposure time.

Depending on the length of the hair and the initial hair colour, it may vary slightly how quickly the effect is visible. Basically, the first results can be seen after 2-4 weeks of daily use.