Nearly one month ago I started taking CircO2, and the results have been amazing! I was having troubles walking and doing the simplest things. Now these are much easier to do and I have only been on the product for about 1 month. It gives me some hope that my health is going to improve much more as I continue taking this product. I have more stamina, more energy, I'm able to do things that I have not been able to do for over a year now! Thanks for this amazing product, and you have a customer for life!