• FRONTLINE Shield provides proven flea and tick protection with repellency action against ticks and mosquitoes
• Kills and repels all stages of ticks, including those that may transmit Lyme disease
• Kills chewing lice and adult fleas, flea eggs and larvae to prevent re-infestations
• Convenient to use, easy to apply, waterproof formula protects for a full 30 days
• For dogs big and small; effective for puppies as young as 9 weeks and weighing at least 5 pounds