Protect your dog from parasites as listed on the label. Applied as a single spot, Parastar Plus for Dogs spreads across the skin and into the oil glands to be released over time, resulting in fast-acting and long-lasting control of ticks, fleas and chewing lice for 30 days. Just one dose offers trusted control for dogs of many sizes. Proven fast and effective. Approved for dogs and puppies 12 weeks of age and older and at least 4 lbs. Waterproof. Easy to apply. Kills fleas Kills deer ticks Kills brown dog ticks Kills American dog ticks Kills lone star ticks Kills chewing lice Controls mites that may cause sarcoptic mange Made in U.S.A.