We recommend a 10 minute massage. Some people/groomers allow the soothing Mud and Flea Relief ingredients to remain on the dog for much longer and even wrap the dog, depending on conditions. You may leave the product on for longer periods of time, please remember clays absorb and adsorb. Adsorb/nourish, they are absorbing/detoxifying, please be sure to rinse completely. WE DO NOT RECOMMEND WRAPPING MOBILITY MUD. Mobility mud is a cooling mud, and heat is generated once product is rinsed, from the dog’s own circulation system, a natural body response (homeostasis) to coolness.