Thoroughly moisten the hair and the shampoo bar. Lather the shampoo between your palms or directly on the scalp, massage it in and then rinse it out thoroughly. Between washes, hang up the shampoo bar in a sisal pouch and leave it to dry well. As soon as the shampoo bar becomes too small, you can lather the remnants directly in the pouch. Store in a cool and dry place.