Permethrin (CAS# 52645-53-1), S-Methroprene (CAS# 65733-16-6)
Other Ingredients: 52%
Read entire label before each use. Use only on dogs or puppies.
Do not use on cats! May be toxic and potentially fatal if applied to or ingested by cats. Cats that actively groom or engage in close physical contact with recently treated dogs may be at risk of serious harmful effects.