I skimmed through the Joint Advantage advertisement and found one testimony:
"For about three years now, after surgery, arthroscopic, much pain and swelling and wrapping of the knee, etc., I can say that I function in a totally normal manner... problem-free... thanks to Joint Advantage. I get the large size shopped whenever it is time and would NEVER be without it!!!" [AND A NUMBER OF OTHER TESTIMONIES.]
Well I have not tried Joint Advantage before so cannot vouch for its effectiveness. Also what works for one person may not work for another. There is only one way to find out if something works for oneself, with all its associated risks and benefits. Find out as much as you can about a treatment or supplement and make an educated decision. A surgery that goes wrong can lead to a life time of pain or discomfort. A supplement can lead to no effects or lethal allergic reactions. Always make an educated decision for oneself. Again, you may want to request the same booklet as I am reading off about Joint Advantage. Fast relief is what it promises and there is a 100% money back guarantee (from my one-year old advertisement).