Injectable Ascorbic acid (vitamin C) supplement. Vitamin C is essential to joint cartilage maintenance and repair, synthesis of collagen and other joint components, tooth, bone and skin, blood vessel maintenance and wound healing. Vitamin C also acts to reduce stress and improves cardiovascular function. Vitamin C has a major role as an antioxidant to remove toxic free radicals produced during hard physical exercise. Vitamin C is water soluble, rapidly absorbed, rapidly excreted and requires regular supplementation. This product can be safely used with all Nature Vet products.