While the use of non-steroidal anti-inflammatory drugs (NSAIDs), such as aspirin and ibuprofen has been shown to inhibit cartilage synthesis, glucosamine sulfate has been shown in studies to improve pain and restore joint health. One study showed that 57% of retail glucosamine products tested deviated between 25-150% from the glucosamine content on the label. IPM’s glucosamine sulfate contains a high dose of glucosamine matching clinically studies doses for greater compliance. Usual dose is 1 capsule, 2 rimes daily, or as directed by your physician.