Bought 2 years ago. The seal fibers are real, the authentication matches the gensci website, and yet these are somehow still fake. If I inject as little as 1iu I'm in extreme wrist pain, not being able to walk due to back pain. I've taken pharm after I tried these 2 years ago and didn't have those sides. So finally saying good bye lol they've been sitting in my fridge 2 years I guess I was hoping they'd morph into real Jins