Kills fleas, ticks (which can spread Lyme disease), brown dog ticks, lone star ticks, deer ticks, American dog ticks, Gulf Coast ticks, and lice on contact. Safe for dogs 6+ months and cats 7+ months. For lifted security, target premise & areas pets visit. Contains NYLAR® growth regulator, hindering fleas for 100+ days. Protect your pet and your home with this powerful flea and tick spray. Nylar growth regulator keeps fleas at bay for up to 100 days, while killing pests on contact. Plus, it's safe to use on puppies and kittens 6 and 7 months old, respectively.