Solgar's advanced, shellfish-free formulation provides the key raw materials- Glucosamine Hydrochloride, Chondroitin Sulphate and MSM for cartilage support. Joints are made up of many components, including muscles, tendons, ligaments and cartilage which need to be kept nourished and healthy. Healthy joints and cartilage are what help us to keep moving more easily. Cartilage, which is found at the end of bones, is a flexible and strong supportive material which is able to withstand heavy compression loads, often many times our own body weight. Glucosamine is naturally present in bones and cartilage and is considered a building block for joints and cartilage. Chondroitin is naturally found in the body, and is a vital part of cartilage, giving it elasticity by helping the cartilage to retain water. MSM is an organic sulfur compound occurring widely in nature and is one of the most common substances found in the body. While found naturally in raw foods, it is destroyed by even modest processing. MSM is thought to deliver sulphur to the body in a usable way. Extra Strength Glucosamine Chondroitin MSM provides these ingredients or compounds in an expert formulation for supplementation. Extra Strength Glucosamine Chondroitin MSM comes as a one tablet a day dosage, giving you high levels of essential ingredients to keep your joints and cartilage nourished. Ingredients: Shellfish-Free Glucosamine Hydrochloride (Providing: Glucosamine, Chondroitin Sulfate, MSM (as methylsulfonylmethane)), Bulking Agents: (hydroxypropylmethyl cellulose, microcrystalline cellulose), Anti-caking Agents: (silicon dioxide, vegetable magnesium stearate), Glazing Agents: (hydroxypropylmethyl cellulose, vegetable glycerin (palm kernel oil)).