I have similac both advance and for fussiness and gas that have been given to us or sent as samples from similac but we are using enfamil. I would love it if someone could use them. They are all unopened, and have been kept properly stored. I just hate to throw them out. So if you'd like them and are in Charlotte let me know and we can meet in public place and they are yours. If you want them and are not close to Charlotte, I can send them to you but the shipping will be your cost.