These three terms get used interchangeably far too often, and each measures something genuinely different.

TermWhat it measures
ProjectionHow far a fragrance radiates from your skin at any given moment.
SillageThe trail of scent left behind as you move through a space.
LongevityHow long the fragrance remains detectable on your skin overall.

A fragrance can, in theory, score differently on each: strong initial projection that fades fast (low longevity), or a quiet, close scent (low projection) that nonetheless lasts for many hours (high longevity). Knowing which one you actually care about most helps you choose and apply fragrance more deliberately.

Frequently asked questions

Which matters most for everyday wear?

For most people, longevity and moderate projection matter more day-to-day than maximum sillage, which can be overwhelming in close quarters like an office.

Balance all three thoughtfully — explore our Perfume Sprays and Oils.