Dr. Mercola, Herbal Repellent Collar for Large Dogs, One Collar, 1.5 oz (42.52 g) Sunscreen Baby Thera-blend is an exclusive process

Thera-blend is an exclusive process that combines multiple strains of enzymes that work in specific pH levels

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Manufactured in the USA with ethically sourced ingredients around the world

Our products are always honest

The Nitraflex pre-training formula contains ingredients that in vitro

Dr. Mercola, Herbal Repellent Collar for Large Dogs, One Collar, 1.5 oz (42.52 g) Sunscreen Baby Thera-blend is an exclusive processProven Safe and Effective When Used as Directed Effective up to 4 Months No Harsh Ingredients Repels Fleas, Ticks & Mosquitoes Diffusing Collar for Small Dogs & Puppies Fits Necks up to 27" Laboratory Tested Veterinarian Approved Using active herbal ingredients, Dr. Mercola Herbal Repellent Collar for Large Dogs effectively controls fleas, ticks, and mosquitoes, reducing the number of bites.