Why does the same fragrance last longer on some people than others?

Skin type is the biggest factor: oilier skin tends to hold fragrance oils longer than dry skin, and dry skin can cause a fragrance to fade faster and sometimes read differently because there's less to bind the scent molecules to.

Does spraying more fragrance improve longevity?

Up to a point. More product means more molecules to evaporate, which extends both longevity and projection — but past a certain amount, you're mostly adding projection (making it louder to others) rather than meaningfully extending how long you personally smell it.

Do concentration labels (EDT, EDP, Parfum) guarantee longevity?

They're a strong indicator but not a guarantee — EDP and Parfum concentrations generally contain more fragrance oil than EDT, but formulation quality varies enough between brands that two EDPs can behave very differently. Treat the concentration label as a starting hint, not a promise.

Longevity vs Projection: What They Actually Mean (and Why They're Not the Same Thing)

"This lasts forever" and "this fills the room" sound like they're describing the same thing, but they're measuring two different properties — and mixing them up is one of the most common reasons people end up disappointed by a fragrance that was actually performing exactly as designed.

What longevity actually measures

Longevity is how long you can still detect the fragrance on your own skin, usually by bringing your wrist close to your nose. A fragrance with strong longevity might still be noticeable to you 8-10 hours after application, even if people standing a few feet away stopped noticing it hours earlier.

What projection actually measures

Projection is how far the fragrance radiates outward — how noticeable it is to someone standing near you without them leaning in. A fragrance can have huge projection for the first hour (a "beast mode" opening) and then settle into something only detectable up close for the rest of the day. This is completely normal and doesn't mean the fragrance "died" — it transitioned from strong projection to a longevity-only phase, sometimes called a "skin scent."

Why they don't move together

A fragrance built around light, volatile molecules (fresh citrus, aquatic notes) often projects well initially but fades in longevity relatively fast, because those molecules evaporate quickly. A fragrance built around heavy, dense base notes (amber, musk, deep woods) usually has the opposite profile: modest projection but excellent longevity, because those molecules cling to skin and evaporate slowly. Neither pattern is better — they suit different needs. A fragrance you want to be personally aware of all day at your desk is a longevity play; a fragrance for a first date where you want to be noticed is a projection play.

What actually changes both

Skin type — oilier skin tends to hold fragrance oils longer (better longevity); dry skin causes faster fade and sometimes noticeably different note development.
Application area — pulse points (wrists, neck, chest) generate body heat that helps diffusion; spraying on clothing instead of skin usually extends longevity significantly since fabric holds fragrance oils longer than skin does, though it can mute how the fragrance projects.
Climate and humidity — heat and humidity both accelerate diffusion, which usually boosts projection short-term but can burn through the fragrance's longevity faster.
Amount applied — more product extends both longevity and projection, but with diminishing returns on longevity specifically past a certain point.

Reading these numbers before you buy

Longevity and projection are exactly the kind of thing that's nearly impossible to judge from a paper strip in a store — they only show up properly once a fragrance is on skin for hours, which is why they belong on the pre-purchase checklist for any fragrance you're seriously considering, not just an afterthought.

Nerune's fragrance pages show longevity and projection ratings alongside every listing, and your own Journal entries let you track how a fragrance actually performs for you specifically — which matters more than any general rating, since your skin isn't the reviewer's skin.

Join the waiting list to start tracking how fragrances actually perform on you.