Hydra Expert is a professional line, specially created for Handlers and Groomers, to offer premium results in dog shows and competitions The Hydra Expert Volumizing Mousse is designed to improve coat texture, adding volume, without compromising brushing. Indicated to support sculpting the head, topknot, face, and paws. Directions: Topical use. To maximize volume, apply the Hydra Expert Volumizing Mousse on a wet or dry coat in all desired areas you wish to achieve additional coat volume (Do not rinse after applying the product). Brush and dry coat thoroughly.