Zap Ear Cleaner 120ml For light cleaning use a cotton ball or swab as an applicator and apply it to the external ear. For heavy dirt, build-up apply zap ear to the ear allow to set for 30seconds. Rinse as needed. Always wipe off excess with a cotton ball. Avoid eye contact. Zap Ear (Professional Strength Natural Ear Cleaner) All natural ZAP EAR Clean is a professional strength liquid ear cleaner. All natural ZAP EAR Clean contains no soap or detergents and it is the best ear cleaner available. It is formulated so it will clean the ear without drying out the skin like powders, and leaves no residue. If you like instant results, with no waiting, then ZAP EAR is the one for you. ZAP EAR is mild, pH balanced, natural, biodegradable. Formulated for dogs, cats, horses, puppies, kittens, ferrets & farm animals.