I wouldn't use it on my face. I got some wax at Sally Beauty Supply. It can be heated over and over in the microwave. I paid $8 but that's at least what you'd pay to have it done and then that's just for one time. This isn't what I have but it looks much easier. If you're really interested, I'll look to see what I've got at home. I'm at work now.
http://www.sallybeauty.com/shop/4320/245050