Odor can never be 100% canceled out, but taking steps to reduce as much of it as possible will dramatically improve your odds when upwind from game. Scent Killer Gold's proprietary SKG 99 technology attacks existing odors at multiple levels and helps reduce new odors from forming for maximum performance even after it dries. The extended-performance formula works for days, helping you take your scent elimination to an extreme level. 12-oz. spray bottle.