I can tell you from personal experience that epilation is extremely effective at removing hair for months at a time. I went through a phase about two years ago where I wanted to completely denude my body of hair from the neck down. I accomplished this through the purchase of a hand held epilator. These devices work the same as waxing, they pull the hairs out with the roots attached. This prevents the hair from groing back for 3 or more months. After epilating my body, including my penis and testicles (it's scary, I know, but a good epilator will not injure you), I was amazed by how smooth my skin had become. Epilation is unlike shaving, or hair removal creams. It will leave you as smooth as a baby's bottom. And you only need to do this two or three times a year to maintain it. Also, as you rip out hair by its roots, you will damage or kill some of the roots, and those hairs will not grow back. If I ever denude my body of its hair again, I will use an epilator.
https://en.wikipedia.org/wiki/Epilator