It's quite a common misconception that the longer you're able to smell a particular fragrance on your own skin, the better it is, in terms of longevity. However, this is not usually the case! If you can still sense a lingering scent even after 15 minutes of application, then it'll likely something that would give you a headache in the long run. Instead, once you stop sensing the smell, ask someone else to smell it for you, and if they do, it might be the one for you!