I have Lupus, so 1) My body does not regulate temperature normally, 2) I am constantly running a low grade fever, and 3) I have to avoid the sun at all costs. This is by far the most amazing thing I have discovered on Amazon. I received this today, and I am in a flare, (a worsening of symptoms), requiring very strong steroids. I also got a steroid injection yesterday. I live in Florida, "The Sunshine State", so I am pretty much confined indoors. Despite the fact that 99% of the time I'm in an air conditioned environment, I spend most of the time EXTREMELY hot. I put this on today and I have never experienced the amount of relief that I did today. With the way this is working, (and the wonderful protection from the sun), I can combine this with a hat, and 70 DOC spray, and enjoy my hobby of Bonsai once again. I will be able to go outside again! Though limited in time, I have a piece of my life back. I cannot express my gratitude for an item like this. It truly is life changing. Super easy to use, extremely cooling, and worth every cent, I recommend this product to everyone!