• N-Acetyl Glucosamine 100% Contents: 1 box 0.5 oz (15.9 g) (530 mg x 30 packs) • Please avoid use if you have allergies (shrimp, crab etc.) • Please avoid using this product if you are taking potassium (warfarin, etc.) • Please avoid using this product if you are pregnant or nursing • Glucosamine Z has been renewed to N-Acetyl Glucosamine Z as a food with functionality labels. The ingredient, price, and content are the same as glucosamine Z