What to layer Azzaro The Most Wanted Parfum with

50 is an ordinary pair, like two perfumes picked at random. The higher it goes, the more their notes are the kind perfumers put together.

80 and up: wear well together. 65 to 79: good match. 45 to 64: worth a try. Below 45: a bit risky.

How we work it out

• Across thousands of perfumes on the site, we count which notes tend to appear together. If these two perfumes' notes are pairs perfumers often combine, the score goes up.
• Shared notes raise it too, base notes most of all, since they last the whole wear.
• It goes down when the two are nearly the same scent, when one is for summer and the other for winter, or when both are very loud.
• The kind (lift a note, same family, something different) comes from how simple each perfume is and its accord families. The three approaches come from Efemmeral's article on Parfumo.
• People's "tried it" votes are shown next to the score, but don't change the score itself.
• Suggestions are drawn from 1800 well-known perfumes; among close scores, the better-known one comes first.

What's not in it: a real wear test, shops' opinions, or ads. No shop has any say over these scores or suggestions.