Revitalize is designed to be a clarifying shampoo. It helps to gently cleanse the scalp and hair. If you have traditionally used hair products that use silicones or other "coating" ingredients, it may take several washes to clear the hair of such residue, should it occur.
During the transition phase, it may leave your hair feeling a little stiffer until it dries. Don't worry, this is a great sign that your hair is strong and healthy. Once it dries, it will be soft and light without any feeling of buildup.