If you bought it at a Kazilan store, it must be authentic. Then maybe the salesperson opened it to check the inside when taking it, or it may be because the salesperson opened the box when he wanted to show it to others. , if you are in doubt, as long as you have the cashier receipt, you can go to them and ask why there is no certified trademark, so all cosmetics will have it! ! ! ! If you bought it at a small store that doesn't issue tickets, then you have to try it and see if they can explain it. If they don't explain it, you will have to admit it... Just pay attention next time...