Dog flea and tick squeeze-on applicators kill and repel fleas in as little as 1 hour and kill ticks in as little as 3 hours. Quick drying formula is fragrance free and controls reinfestation for up to 9 weeks. Sentry Pro XFT Squeeze-On Dog Flea & Tick Treatment kills fleas, ticks, flea eggs and larvae. Ideal for dogs and puppies over 12 weeks of age. Active Ingredients: Cyphenothrin 20%, Pyriproxyfen 2%, Other Ingredients 78%.