Veterinarian-recommended, the Zymox Cruelty-Free Pet Ear Cleanser for Dogs and Cats provides an effective, non-toxic and gentle way to manage dirty ears. Features a combination of protein, enzymes and surfactants that make the ZYMOX ear cleanser perfect for long-term cleaning of non-infected dirty ears. It does not contain harsh chemicals or detergents that can irritate ears. It leaves ears smelling fresh. The ear cleanser may be used after a completed course of ZYMOX Enzymatic Ear Solution with or without hydrocortisone.