This stuff works wonders. I have Parkinson's and at times I have muscle spasms. Very good. On the pain. And just now, I have a really, really bad migraine, and after a little bit, I took 2 ibuprofen and then I took Alka-Seltzer, that used to help me a lot. And it wasn't doing anything until I remember I had this stuff. And I put it on almost instantly, my headache went away. I'm even smiling. Enjoy you guys. I totally recommend it. Totally, totally, totally. You don't know what this product can do to your life.