Joint Flex Daily GlucOsamine & Chondroitin tablets contain chondroitin with a 90 percent purity – not all supplements will have such a high grade of chondroitin. We just want the best for you! We have also added 2mg of manganese & 53mg of antioxidants. Manganese is an essential trace mineral playing an important role in the growth of bone & joint tissue whereas antioxidants aid the absorption of manganese and can help combat the damaging effects of free radicals. With its lower dosage, you can choose whether you would prefer to take a higher or lower dosage e.g. take one or two tablets per day according to your preference. With us, what you see is what you get. Pure and simple.