No deodorant works (bromhidrosis)

Ok so since the last time I posted here I have tried numerous deodorants, retried and most only work for 2-3 hours before they go stale. Has anyone got any idea why this is happening??? Btw I am making my own deodorants since I can make stronger ones than market ones. Do I need to use some kind of special preservative or possibly an antioxidant or something??

I'm at my wits end now I've tried tea tree, citric acid , baking soda, zinc oxide nothing works and I'm desperate to solve this problem. Has anyone else had this problem where deodorant goes stale??