Corta-FLX Solution Quart Recommended by Leading Veterinarians Worldwide CORTA-FLX is the first of its kind featuring the pure, micro-sized, water soluble, isolated nutrients comparable to the active ingredients found in Chondroitin, Glucosamine, MSM and Hyaluronic Acid. The effectiveness of any oral supplement is determined by its ability to pass through cellular walls and arrive at their intended destination. CORTA-FLX's smaller molecules mean maximum assimilation and better utilization.