I honestly can't even remember the exact name of this stuff or what it’s technically supposed to be doing, but man, this Deep Heat has been a total lifesaver... I’ve been dealing with this one muscle acting up for like six months straight, and it was getting to the point where I was actually terrified to even pick up a basketball. Every time I went to take a shot, I’d just freeze up because I was so scared my muscle was gonna snap or something. It was constant, just nagging pain all the time. But then I decided to actually follow those instructions for two days—just applying it three times a day with about four hours in between—and I’m not even kidding, the pain is just gone