The product that I use is half Twenty Mule Team Borax (contains no brighteners) and half Baking Soda (removes all scents). Military snipers use the same as they can't warrant be sniffed out by an animal and giving away their position. I use it for hunting purposes for the same reason, and it works great. It also a little less expensive than paying big dollars for Sport Wash.
Regards, - James R.