These shampoos are formulated to caress your hair with an enriching lather. They may be used anywhere on your skin. It might take a couple weeks for your hair to get used to this shampoo, as it is gentle and does not strip your hair of the natural oils. The bars are 4+ oz, and they measure 3.5x2.75x.8 in. Long lasting and mild. For dry and sensitive skin and scalp. These bars leave your hair feeling clean and conditioned. Most are scented with essential oils to bring you a natural hair-washing experience. Rub directly on hair. Olive, coconut, castor, organic sustainable palm oils make up the base of the bars.