I do a lot of walking for exercise, and as a result of the load I put on my feet almost daily, I sometimes end up at night nursing some pretty sore tootsies. For years I used the old stand by of Johnson's Foot Soap that has always done a pretty good job of soothing aching feet. But it wasn't until I was introduced to this tee tree oil mixture that I really understood what pampering oneself really is all about. A dose of these crystals dissolved into either a formal foot bath machine, or just a hot pot of water, instantly releases the sweet, wonderful camphor like scent of the tee tree oil, making it most inviting for your sore feet. For me, a little of these crystals goes a long way, and it doesn't take the full dose to receive the effect of what this stuff promises. The tee tree oil treats both any soreness and inflammation in your feet very effectively, while at the same time its antibacterial properties allow your feet to come out smelling downright sweet. (My friend uses pure tea tree oil extract as an ingredient in her home made deodorant). I am still quite amazed at how effective it is at getting so much of the soreness out. Personally I would never consider using anything else. Even my friend doesn't bother to mix her own concoction since she feels this does an excellent job with little else that she could manage that would come out as much of an improvement on it. And at a very reasonable price. I ended up buying mine at one of those all natural earth style stores at a local mall for a little more than Amazon is asking for it. But I will be ordering it from here as soon as I have used up what I have.