At present, no USANA products contain chondroitin.
Over a period of 15-20 years, numerous research studies have clearly demonstrated the benefits of glucosamine used alone in the reduction of osteoarthritis pain. There has been significantly less research on chondroitin, although it also seems to provide some benefit.
There is presently no substantial research to indicate that the benefits of glucosamine are enhanced by the addition of chondroitin sulfate. We will consider adding chondroitin only when, and if, published human research studies clearly establish that the combination of glucosamine and chondroitin is superior to glucosamine alone.