The card does not describe the method of use, the contact time or the amount of shampoo. It states that the shampoo is suitable for frequent use and has a pleasant aroma of meadow herbs. See the packaging for the method of use. The promise of a “noticeable result” has no confirmation.
General information (not a manufacturer's instruction): the shampoo is applied to wet hair and rinsed off thoroughly; avoid contact with the eyes, and stop using it if irritation occurs.