After arthroscopic surgery many years ago I got the replacement of knees is around the corner due to cartilage deterioration from my orthopedic surgeon 4 years ago and started using what at the time was said to be the best, Kirkland Glucosamine HCI 1500 mg and Chondroitin Sulfate 1200 mg. I attribute it to basically getting me off constant indomethacin and other NSAIDs and able to have pain free 20 mile rides every other day and when the kids come as much a 30. When in Anchorage I rented a similar Takara for the Cook Inlet costal pathway ride and loved it. 22 miles from city center to Kincaid Park and back and can tell you the center pull brakes were excellent when a cow and calf moose popped out of a thicket.
Take care and luck be with you.