A deodorant can help with the smell of sweat in your groin, but it won't do anything to prevent moisture, bacteria growth, and possible crotch rash. Common causes of groin sweat · Your whole groin is sweaty. Assuming you're referring to using deodorant for its odor-fighting properties instead of looking for a perverse way to apply it (or remove it, as the case may be), there are better and safer ways to freshen up odors that come from the crotch area. Finally, if you smell good and were interested in using deodorant on your penis anyway, there are spray fragrances and powders formulated for the whole body.
This product is very similar to the BALLS deodorant lotion in that it acts as a liquid but becomes a deodorant as it dries.
