If desired, you can and should use shampoo. for daily care for preventive purposes Washing your hair with tar once or twice a week is enough. The complex cleans the hair well, so the บร็อคโคลี่hair will look neat for a long time. The rules for using birch tar shampoo are simple. You can't use shampoo with tar very often, or your hair will become stiff, poorly combed, lose its shine. Dry scalp can occur.