Werid I tried scanning and punching in the numbers on both the ones u say legit and fake on my mobil app and none of them come up idk if they changed it to where it can only be looked up once in the system and once it is it's take out on the system idk..... Clearly is a different batch and newer pen I'll dig in and do some research maybe reach out to Pfizer and see what they say. The serial numbers are shorter also on the newer pens idk usually I stay on top of this stuff pretty hard.... I got some researching to do.... Do the numbers still start at .3 on the dial on the newer pens? And you shouldn't be able to scratch or peel off those dial numbers the fakes have stickers, alot of times if u scratch the paint also it will chip and flake away the purple or it'll be a sticker..... The leaflet should be very thin paper if it's thick then it's fake..... Wish I had them in front of me to inspect them.....I'm going back to humatropes anyways..... Norditropin nordiflex pens are done atleast in turkey. I might try getting some ansomne and Jintropin kits..... Price of pharma lately is kinda a bit nutz might be time to switch to quailty generics unless this srcs comes threw..... Rfs would the best for a very long time unfortunately everyone got screw with these prices increases