Baking soda gets the thumbs up from me. I also use unscented Arm and Hammer brand detergent and pit juice.

Stump as to the rubbber gloves comment does he hunt with them on all the time? Cuz otherwise not only is it over the top, it is pointless. Something I have found with the need to reduce scent as of late, is some people' s need to bs about how far they go to be scent-free. Some fail to realize that their is no way to eliminate 100% of human odour, only to minimize. Take precautions is a must but hunting the wind is the only 100% way I know. They can' t bust what they don' t smell!