Seresto Flea & Tick Collar for Dogs over 18lbs Biotic 8 Valerian Root and Passion Flower:

Valerian Root and Passion Flower: helps regulate nerve cells to calm anxiety

min 135 ppm Selenium

Menadione Sodium Bisulfite Complex

low in cholesterol and high in Vitamin B12 to help ensure your dog's nervous system is functioning properly

glucosamine and chondroitin to limit inflammation and slow the signs of aging

Seresto Flea & Tick Collar for Dogs over 18lbs Biotic 8 Valerian Root and Passion Flower:PLEASE ALLOW A DELAY OF UP TO 28 BUSINESS DAYS FOR DELIVERY The Seresto Flea & Tick Collar for Small Dogs & Puppies (up to 18 pounds) offers a breakthrough in tick and flea control for dogs for 8 months. Inside the unique polymer matrix of the Seresto collar are two active ingredients: imidacloprid, which has been used in products recommended by veterinarians for years to control flea infestations, and flumethrin, which effectively repels and kills