Frontline products are highly recommended by veterinarians for flea and tick control for dogs. For dog owners who want long-lasting, fast-acting flea, tick, and chewing lice control, Frontline Plus guarantees control on dogs aged 8 weeks and older. You only have to apply Frontline Plus once a month, so a 6-dose supply will provide you with up to 6 months of convenient, highly effective flea, flea egg, chewing lice, and tick control. Frontline Plus kills up to 100% of existing fleas in less than 24 hours and continues, on a single dose, killing them for at least an entire month. Its special ingredient also kills flea eggs and larvae, which, in effect, prevents the development of new fleas. It destroys all stages of 4 major ticks, including ticks that may carry Lyme disease, which provides your dog and your family with additional protection. Frontline Plus is waterproof, so your dog will still be protected if it bathes or goes for a swim. Merial backs up Frontline Plus with a limited Satisfaction Guarantee. Using Frontline Plus is a simple 3-step process. First, remove the applicator from the child-resistant package, use scissors or just lift the plastic tab to expose the foil, and then peel down. Secondly, open the applicator, hold it upright, and snap the tip away from your face and body. Finally, apply Frontline Plus by placing the applicator tip through your dog's hair to the skin between the shoulder blades. Squeeze the applicator to apply the entire dose to a single spot on the dog's skin.