Equine America Cortaflex Working Dog Chews. Canine Cortaflex Working Dog Jointcare provides the highest strength, natural ingredients to support joint health and mobility in hard-working or very active dogs, and those of advancing years. Scientifically researched and containing elevated levels of key compounds such as glucosamine, chondroitin and hyaluronic acid, as well as collagen. Antioxidants and a highly concentrated Boswellia extract support the dog s own natural anti-inflammatory processes, to ensure dogs can maintain their active lifestyle in comfort! Canine Cortaflex Working Dog Jointcare provides the highest strength, natural ingredients to support joint health and mobility in active dogs. INNOVATIVE NATURAL INGREDIENTS - with AquaLOX Boswellia - a powerful and effective botanical to support joint health and comfort. Aqualox contains exceptionally high levels of AKBA (Acetyl-11- Keto-Beta-Boswellic Acid), shown by numerous scientific trials to support the dog s own natural anti-inflammatory proce