Sentry Flea and Tick Shampoo for Dogs and Puppies with oatmeal kills fleas and ticks for up to 10 days. It even kills the ticks that may carry lyme disease. This shampoo cleans, deodorizes and conditions your dog's coat, and is ph balanced. The formula contains oatmeal to soothe dry or irritated skin, and can even be used on puppies over 12 weeks of age. 18-oz bottle.