Chondroitin Sulfate is dosed at 100mg per serving. It's most notably associated with a landmark glucosamine-chondroitin combination trial published in the New England Journal of Medicine -- but that trial and related research commonly used around 1,200mg of chondroitin daily, roughly twelve times what's in a JointReliveX serving. That doesn't mean this amount does nothing, but it does mean the research most often cited for chondroitin doesn't directly transfer to this specific dose.