M.G.
I wouldn't pay for any products because you would be wasting money. All you need is a towel, paper towel, parchment paper or something similar. Place over the wax and iron over the towel (or whatever you're using). Make sure you move it every so often so you aren't just reheating what you pulled up to the towel if that makes sense. I've done it plenty of times. There should be no discoloration or residue left behind. Good luck!