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There are numerous complaints about this company with the Better Business Bureau which gives it only a C- rating on a scale from A+ to F. It has made other supplements, but I could find none called Joint Repair Rx. Most joint supplements contain chondroitin, glucosamine, MSM and perhaps a few herbs. Some contain willow bark which is a precursor for aspirin. Typically Austin products cost about $70 for a bottle (a $30 supply). You can buy similar supplements at Costco, Walmart, or Sam's Club for well under half that.
Since they are supplements and not drugs, they aren't studied for effectiveness. Glucosamine and chondroitin have been well studied show little improvement for either pain relief or joint damage when compared with placebo.