GC-MSM 3550 combines two traditional joint support supplements glucosamine and chondroitin with sulfur-containing methylsulfonylmethane (MSM) and several other ingredients shown to support healthy joints and promote joint mobility and comfort.Suggested UseFour capsules daily, or more, as directed by a health care professional.Serving Size:4 CapsuleServings Per Container: 30Amount Per Serving % Daily Value Vitamin C (ascorbic acid) 100 mg 167% Vitamin E (Covitol) Succinate 50 IU 167% Pantothenic Acid (as calcium pantothenate) 100 mg 1000% Manganese (as manganese amino acid chelate) 2 mg 100% Molybdenum (as molybdenum amino acid chelate) 75 mcg 100% Methyl Sulfonlyl Methane (Lignisul MSM) 1700 mg Glucosamine Sulfate 1500 mg Chondroitin Sulfate 250 mg N-Acetyl Glucosamine 100 mg L-Cysteine 100 mg N-Acetyl Cysteine 10 mg L-Glutathione (reduced) 4 mg Green Shell Mussel Green Shell mussel is a natural source of mucopolysaccharides (chondroitin sulfate) and superoxide dismutase 50 mgOther Ingredients:gelatin (capsule), vegetable lubricantWarnings Contains: Crustacean Shell Fish (crab and shrimp). Pregnant and/or lactating women should consult their physician prior to use. Tamper evident band around cap and seal on bottle. Do not use if either seal is broken or missing. Keep out of reach of children.