Scent Killer was the first odorless scent eliminator available to hunters. Wildlife has done extensive field testing and lab testing on Scent Killer with amazing results. In fact, Scent Killer was found to be 99% effective at stopping replicated human odor in testing at Rutgers University. Super Charged Scent Killer was found to be even more effective. Wildlife continues testing new scent elimination technologies to ensure they are giving hunters the best product they can. Wildlife is confident that Scent Killer products are the hottest scent elimination formulas available. FeaturesPremium Doe Urine with Estrus Secretions, enhanced with our proprietary Scent Reflex Technology for a better response.Includes Key-Wick Scent WickEngineered for stronger more consistent results.Takes Estrus Scents to a Whole New Level!