Both are substances which are found naturally in the body. Glucosamine is a form of amino sugar which plays a role in cartilage formation and repair. Chondroitin sulphate is part of a large protein molecule, called proteoglycan which gives cartilage its elasticity. Glucosamine is also needed for the synthesis of synovial fluid which is a vital cushioning substance which protects the joints from the damaging effects of friction. As we get older, our body may need a little help in maintaining the overall health and well-being of our bones and joints. A number of factors namely diet, maintaining a healthy weight, regular exercise and the manner in which we perform tasks such as lifting heavy objects and posture may affect the level at which our joints function over the years. Mobility is an important factor to all of us and remaining mobile throughout our lives adds to not only our quality of life but to those around us as we enjoy our independence and ability to carry on with our sometimes hectic and busy lifestyles. Store in a cool dry place. Keep away from children at all times. Do not use if the seal is broken. Please consult your GP or medical professional before taking supplements, especially if you are pregnant or lactating, taking medication or under medical supervision. Do not exceed recommended dose. Food supplements should not be used as a substitute for a varied diet. Glucosamine Sulphate 500mg Marine Chondroitin Sulphate Powder 400mg Other Ingredients Microcrystalline Cellulose Magnesium Stearate Dicalcium Phosphate Warning: Contains Shellfish Suggested Intake: 1-2 daily with water or as recommended by a health professional.