Use Spectra Sure Plus IGR for Cats monthly for complete control of flea, tick, and chewing lice infestations. Spectra Sure Plus IGR for Cats kills adult fleas, flea eggs, and flea larvae. Apply monthly if your cat is at high risk for flea reinfestation. Apply monthly to control ticks, and chewing lice. Spectra Sure Plus IGR for Cats remains effective, even after bathing, water immersion, or exposure to sunlight. Allow treated area to dry thoroughly. Do not reapply for 30 days. For use on cats 8 weeks of age and older.