I am a user of this product for almost 4 months now! I was just testing out as I saw my friend using the same. So I was like, okay let me just try it out. Looked into their website on the different health benefits, also did a quick google search on how our microcirculation works and found out that a lot of the common and deadly illnesses are caused by poor microcirculation! So going back, I tested it out and noticed a significant change in terms of my endurance and stamina especially when I jog and swim. I also do HIIT (not often tho) and it helps me through it as well! awesome!