Vetri-Disc Back Support Supplement, 320 Capsules A unique formulation designed exclusively to support connective tissues associated with the spine About the formula: Rich in chondroitin sulfates which make up the matrix of connective tissue and are found in high concentration in the tissue of the spine Manganese is necessary for the activation of enzymes that are vital for the biosynthesis of glycosaminoglycans Provides Equisetum arvense a natural source of silicon which is necessary for the synthesis and integrity of connective tissue Packaging May Vary