Q'sai N-Acetylglucosamine Z Powder Type - 30 days' supply 15.9g (530mg x 30 packets) Food with Function Claims Expiration Date: 2027/3/12 Due to shipping costs, the item will be shipped after opening the box. (The box will be folded and included.) Instant purchase OK. Helps maintain joint cartilage. Supports the health of fingers, elbows, knees, and ankles.