The card does not say whether the head can be washed with this shampoo every day. According to the card, the shampoo is applied to wet hair and scalp and then rinsed off; the rest is given on the packaging. The shampoo is described as a product for the care of the scalp and hair.
General information (not a manufacturer's instruction): tar shampoos are usually used in courses, so the frequency and duration are best confirmed on the packaging or with a doctor; avoid contact with the eyes.