Have you tried Mitchum's? It's better than a lot of men's deodorant. It says on the roll up it works for 2 or 3 days.....

Eating green food or chlorophyll plant vegetables will help

they make body deodorants now but I would read up on them to make sure they're safe.There are many types of soaps and I'm wondering if you tried liquid soap as opposed to the soap bars with your sons? It might just be a preference issue or even sensory.

I haven’t, I’m leaning to the idea to try that lume whole body deodorant spray it’s just a little pricey

Have you tried the clinical strength deodorant?