This is 500g of Citrulline Malate powder. Of course, it's brand new and unopened. It promotes blood flow and pumps you up, making it ideal for pre-workout before weight training. Even on days you don't work out, taking it after every meal can improve metabolism and promote growth hormone secretion. Expiration date: April 2026 I bought too much, so I'm offering it at the lowest price. If you'd like to buy in bulk, I can offer an even better price, so feel free to comment.