I just use regular baking soda. I can't believe how good it works! Let's say it's Monday afternoon, and my underarms STINK. I put on the baking soda, and 15-20 mins later - the odour is gone. Tuesday morning I sniff them, no odour at all! So, it'll even work the day after I applied it. How I use it - I pat my underarm and index finger with water. I stick my finger in the baking soda box to apply some. Then I pat and rub it on my underarm. It works for me!

A few years ago my wife and I did the Dr. Clark Kidney/Parasite/Liver cleanse. One thing we noticed was that our body order was not at all noticeable. After a shower we did not need deodorants for days. I may use deodorants once or twice a week now.
Have you tried any cleanses?