There are two kinds of MSM on the market. MSM that is manufactured here in the United States and the MSM that is manufactured out of the United States. MSM manufactured out of the United States in cheaper but not as affective and MSM made in the United States. Cheaper isn't always best. Cheaper means you will not get the best result from MSM because you are using a product that is contaminated by other impurities. . Our MSM is 99.9% and is a perfect alternative for those who cannot use shellfish-based joint support products. The other .1% is moisture. List of Common Uses for Nutritional Sulfur (MSM) Acne • Alertness • Allergies (Dust, Food, Mites, Pollen) • Anti-aging • Asthma • Athletic injuries/pain • Back pain • Blood clotting • Candida • Carpal Tunnel Syndrome • Circulatory problems • Concentration • Conjunctivitis • Constipation • Dental pain • Depression • Diabetes • Diarrhea • Emphysema • Enhances Vitamin C • Fibromyalgia • Flexibility • Free radical damage • Gastrointestinal problems • Hair growth and appearance • Healing burns • Heartburn/hyperacidity • Hypertension • Immune function • Infection • Inflammation • Insulin balance • Interstitial Cystitis • Itching • Joint pain • Leg cramps • Lung dysfunction • Memory loss • Migraines • Muscle pain • Nails (growth, strength) • Nerve disorders • Pain • Parasites • Pets (silky coat/skin disorders) • Rashes • Reduce wrinkles • Removes toxins • Rheumatism • Rheumatoid arthritis • Scar tissue • Scleroderma • Sinusitis • Skin disorders • Skin (health and appearance) • Stress • Tendonitis • TMJ • Tumor growth • Urinary tract disorders • Wound healing • Yeast infections