Well so far I've tried Nature's Gate Organics and Jason's. Jason's worked better for me.

What i realized is that it's a bacterial problem. Even after i wash my armpits with soap and even shampoo they smell shortly afterwords.

Lime and baking soda works for me. I do it maybe once a week and use either one of the products mentioned above and no more worries.

The natural products don't prevent you from perspiring, they just mask the odor. Going non-antiperspirant is a big step forward. Now i only use antiperspirant for special occasions ;-)