Injecting works the best. It's so easy to prep. also. DMSO messes-up your skin. I wouldn't reccommend using it for too long. You get sunburn type rashes, and the skin can even get a chemical burn. Kits are safe, cheap, and very affective. If you are worried about is someone is going to screw you with fake or tampered gear, don't worry.... All they are is basically a solvent, and sterile oil with some prep tools. That's it. These guys have no reason to hurt or screw you over. Everything they offer is legit (won't hurt you) and is legal items offered/ sold all over. Believe me, once...yes,..I was a "doubter".....but now I have seen the light, and am glad I had. They want your business. My say on this. I would just, inject. You get waaay more out of it, and the hard work is done for you. It's convienience, they sell basically. I'm in.
My opinion...