So many people feel that they are doomed to suffer from joint pain and stiffness for life, but X-treme Flex wasformulated to change all that. UsingMSM, a naturally occurring nutrient,X-treme Flex provides the body with sulfur, a vital building block of joints and cartilage. Along with several key vitamins and glucosamine, a natural compound found in healthy cartilage,this formula can activate your body’s own health mechanisms and help you get one step closer to being pain free.