I think that every time after an hour when I’ve used Bright Crystal. I actually like this perfume; I don’t find it as artificial as my predecessors. Apparently, I unknowingly have a fondness for peony. :-) But the scent fades away so incredibly quickly. That’s really not for me, as I see perfume as part of a person's overall appearance. It can’t be missing a piece after such a short time! My conclusion: It’s enough for shopping, unfortunately not for the office, and definitely not for going out. Best regards, Mandy