Frontline flea and tick spray-on topical flea control formula can be applied directly to pets to provide fast-acting control of fleas and ticks for up to 30 days. Spray bottle is easy to use, ensures fast and even application and can be reapplied regularly. Kills fleas before they lay eggs, effectively preventing re-infestation. Contains fipronil to kill pests quickly and safely. Safe for dogs, puppies, cats and kittens 8 weeks or older.