DUOZI Weight Gainer Powder with Whey Protein, Soybean, and Creatine (518g size, 21g protein, 5g glutamine) No reviews from 2500000 /per Qty. Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. Tweet