Wet the shampoo, lather, apply to your baby's wet hair and rinse. Can also be used for body cleansing. Please use a water-saving container instead of running water to wet the product from time to time while applying. Allowing your solid shampoo to dry without coming into contact with water will prolong its use. For this reason, we recommend leaving the product to air dry after each use on a soap dish with drain holes or on your shower net, without contact with water.