Pure Encapsulations Glucosamine Complex Daily Joint Support This formula combines three forms of glucosamine: glucosamine HCl, glucosamine sulfate, and N-acetyl-d-glucosamine. These naturally occurring substances build and maintain the matrix of collagen and connective tissue that forms the ground substance of cartilage. Key Benefits and Features: Ages 18 and up Joint comfort support Cartilage and connective tissue integrity support Supports joint mobility, integrity, and comfort Promotes optimal cartilage matrix composition Combines three forms of glucosamine Contains manganese for cartilage support Extensively researched ingredients Ingredients Serving Size: 1 Vegetarian Capsule Amount/Serving Manganese (as manganese ascorbate) 2 mg Glucosamine sulfate (from crab and shrimp) 250 mg Glucosamine HCI (from crab and shrimp) 250 mg N-Acetyl-D-Glucosamine (from crab and shrimp) 250 mg Other Ingredients: Vegetarian capsule (cellulose, water), and ascorbyl palmitate. Contains: Shellfish (crab and shrimp). Does Not Contain: Wheat, soy, dairy, eggs, artificial colors, artificial sweeteners, coatings, shellacs, GMOs, tree nuts, peanuts, sesame, unnecessary binders, fillers, preservatives, magnesium stearate, gluten, trans fat, and hydrogenated oils. Gluten Free, Non-GMO Suggested Use As a dietary supplement, take 1 capsule daily, with a meal, or as directed by a health professional. Warning: If you are pregnant or lactating, have any health condition, or are taking any medication, consult your health professional before use. Do not take if you are sensitive to shellfish. Storage: Store in a cool, dry place. More Info. Glucosamine sulfate, glucosamine HCl, and N-acetyl-d-glucosamine are derived from crab and shrimp Manganese is derived from earthen ore Ascorbyl palmitate is derived from corn dextrose fermentation and palm oil