protect your pets from fleas and ticks with frontline plus for dogs and frontline plus for cats. its two killer ingredients work fast and keep working all month long preventing new flea infestations on your pet. frontline plus. the number 1 name in flea and tick protection. proven to protect street skaters and freestylers. stops up to 97% uv. lasts through heat. through sweat. coppertone. proven to protect.