I use Nair for men. I apply it to the few hairs on my penis, as well as the more numerous ones on my sac, and crotch areas. As far as hair is concerned, I found that growth was slowed after my second use of the product. There is less of a chance of it burning if your skin is dry prior to use. However, I did burn my sac last time I used it and my sac was shiny for days. In such a case, it’s good to keep a tube of Cortozone 10 nearby. Rubbing that on will provide pretty quick relief if the Nair cream has really penetrated. Just don’t wait too long before applying the Cortozone. Also, be sure to keep your shaft raised while applying it to prevent the cream from dripping down and making its way inside. That would cause serious pain, which is why the manufacturer warns against using it in genital areas.