|Synergy Richard's Organics Naturally Gentle and Safe Flea and Tick Spray is formulated to kill and repel fleas and ticks for up to 4 weeks without exposing your pet and family to harsh chemicals. Use with Richard's Organics Naturally Gentle and Safe Flea and Tick Shampoo and Whole House Premise Treatment for complete Flea Free system. Helps sooth irritated skin with Chamomile and Aloe Vera extracts. Repels mosquitoes. Recommended for dogs and cats over 12 weeks. Safe for use around children and pets. No artificial color or fragrance. Size: 12 ounces.