Product Overview Get instantly clean hair in between washes with Sebastian Drynamic 212ml a dry shampoo that not only refreshes your hair but increases volume & hold so you can update your look wherever you may be. Benefits With a breakthrough formulation, Sebastian Drynamic is great for all situations. It gives your hair a quick boost to keep it fresh & has been designed with a special formula than leaves hair with no residue which is why our stylists think this product is great to use as a hair “pick me up” throughout the day.