Bio Align®Dietary SupplementMalic Acid & MSMSoothes Muscles & JointsSource Naturals Fibro-Response™ is a comprehensive formula that soothes muscles and joints by supporting oxygen supply and energy production. Without adequate energy and oxygen, muscles become fatigued, achy, and painful. Fibro-Response also provides powerful antioxidants for healthy joints and connective tissue, and supports liver function and circulation.