Quite right. If you're dealing with real GenSci Jintropin, it will still be in its origial packaging, sealed with a GenSci sticker that has real embedded fibers inside the sticker which can be plucked out. There'll also be a code on the sticker that can be verfied on GenSci's website.
If you are told by another that they're selling real Jintropin, but are pulling the Jintropin vials out of GenSci's original packing and then repacking them in unmarked boxes and sending it to you that way??? Their flat out lying to you. They're simply Generics w/a fake GenSci sticker on the vial(s).