When you want pure buck urine and nothing else, choose Code Blue Whitetail Buck Urine. Featuring Code Blue's proprietary From One Deer to One Bottle process, where urine is collected from 1 deer rather than several, this buck urine attractant is guaranteed to be 100% pure. Smelling more than 1 deer can spook a buck; with this Code Blue buck urine, you'll get unmatched true-to-life effectiveness that stimulates the natural territorial instincts of dominant bucks, bringing them into close range. This whitetail buck urine attractant comes in an amber glass bottle that locks in freshness and potency and is also labeled with the deer's unique registration number.