Picking a Perfect Perfume

For Perfumes: The Guide, Luca Turin and Tania Sanchez tested nearly 1,500 fragrances--some glorious, some foul. Here they offer some humble advice on finding something worth loving among the stinkers.

1. Smell top to bottom
Perfumes usually unfold in three (often very different) stages: the sparkling first few minutes are the fragrance's top note, followed by its true personality, known as the heart note, and ending with the base note, aka the drydown, hours later. Something you love at the counter you may loathe by the parking lot. We recommend top-to-bottom tests on skin and on paper, since some scents that disappoint on the heat of skin may shine on your shirtsleeve.

2. Write it down
Bring a pen to write names on paper test strips, so you're not in anguish hours later, trying to recall which is the third scent from the left that transports you to Shangri-La. Keep a cheap, possibly extremely trashy paperback on hand, so you can store strips between pages to keep them separate.

3. Rest your nose
Noses tune out, which is why you can smell your friends' homes but not your own. Smell no more than five scents per day on paper strips and try on only the best one or two, to keep your nose reliable.

4. Check the radiance
To get a good sense of how the perfume will smell to other people as you walk past, try spraying a test strip and leaving it in the room while you step out for a bit. Come back fifteen minutes later and breathe in: that's the radiance.