Using this Manic Panic dry shampoo is easy. First, when your hair gets oily and you want to refresh it, make sure your hair is dry. Hold the aerosol - free pump bottle about an inch away from your scalp. Give the bottle a good shake before pumping the product onto your hair roots. Then, use a comb to go through your hair and massage the product in. This will blend it well. You can use it daily. It's great to keep in your bag for after - gym touch - ups or mid - day boosts. Remember to do a patch test on your skin before you start using it regularly. If you notice any redness or itching, don't use it anymore. This way, you can keep your hair looking fresh, colorful, and voluminous.