Originally Posted by azia
^ They won't take it back (unless you make a stink about it) because there's no way of knowing where and when it's from.
I disagree. I have returned things there that have been used and without packaging. They have a really good return policy (unless they have changed it recently). They are always suggesting things to try and always tell me... if I don't like it to return it. They might only give store credit though... who cares... you can always find something at Sephora!
The only time they said they wouldn't was when I bought a Jessica Simpson lip gloss (her flavored line) and it broke. I didn't have packaging or receipt. They said they normally don't take back that line b/c you can buy it at walgreen's... but they still let me.