Ingredients:The purified chondroitin sulfates in these products are derived from Certified BSE Free Bovine Tracheal Cartilage, which is a rich source of biologically-active Chondroitin -4- and -6- Sulfates. Legal Disclaimer:This information is intended for your general knowledge only and is not a substitute for professional medical advice or treatment for specific medical conditions. This information is not intended to diagnose, treat, cure or prevent any disease. Always seek the advice of your qualified physician or other health care provider with any questions you may have regarding a medical condition. Never disregard or delay in seeking medical advice.