Sillage, Projection & Longevity: What Fragrance Terms Actually Mean

Fragrance communities are full of vocabulary that can feel impenetrable to newcomers. Words like sillage, projection, dry-down, and longevity get thrown around constantly — and they actually matter when you're trying to decide whether a fragrance is right for you. Here's a clear breakdown of the most important terms.

Sillage

Pronounced see-yazh, sillage is a French word that literally means "wake" — as in the trail a boat leaves in water. In fragrance, it refers to the scented trail you leave behind as you move through a space.

A fragrance with strong sillage fills a room and lingers in the air after you've left. A fragrance with low sillage stays closer to the skin and is only detectable up close.

High sillage: Bold, commanding presence. Great for evenings, formal events, or those who want their entrance known.
Low sillage: Intimate and personal. Better for office environments, close settings, or those who prefer a more private scent experience.

Projection

Projection and sillage are closely related but distinct. Projection specifically refers to how far a fragrance radiates outward from your skin — measured in the moment, not the trail.

Think of it this way: projection is the radius of scent around you right now. Sillage is what you leave behind as you move.

A fragrance can have strong projection but poor longevity — it radiates boldly for 2 hours and then fades. Or it can have moderate projection but exceptional longevity, staying close to the skin for 10+ hours.

Longevity

Longevity is simply how long a fragrance lasts on your skin. It's influenced by several factors:

• Concentration: Parfum (extrait) lasts longest; Eau de Toilette is lighter and shorter-lived. Most niche fragrances are Eau de Parfum or Parfum concentration.
• Skin type: Oily skin tends to hold fragrance longer than dry skin. Moisturized skin also extends wear.
• Base notes: Heavy base notes (musks, woods, resins) anchor a fragrance and extend longevity. Citrus-heavy fragrances tend to fade faster.
• Application: Pulse points with warmth — wrists, neck, inner elbows — extend projection and longevity.

Dry-Down

The dry-down is the final stage of a fragrance — what it smells like after the top and heart notes have faded, typically 2–4 hours after application. It's driven primarily by base notes.

The dry-down is arguably the most important phase of a fragrance. It's what you'll be living with for most of the day, and it's deeply influenced by your skin chemistry. A fragrance that opens beautifully might have a disappointing dry-down, and vice versa — which is why wearing a fragrance for a full day before deciding is essential.

Skin Chemistry

Your skin's pH, moisture level, and natural oils all affect how a fragrance smells on you. This is why the same fragrance can smell radically different on two people — and why "it smells great on my friend" is never a guarantee it'll work on you.

Skin chemistry is also why spray-on-skin testing always beats paper strips. A strip tells you what the perfumer intended. Your skin tells you what you'll actually wear.

Concentration Levels

• Extrait de Parfum / Parfum: 20–40% aromatic compounds. Longest lasting, richest, and usually most expensive.
• Eau de Parfum (EdP): 15–20%. The most common niche concentration. Strong longevity, good projection.
• Eau de Toilette (EdT): 5–15%. Lighter, less lasting. Better for casual, daytime use.
• Eau de Cologne (EdC): 2–4%. Very light. Typically citrus-forward, short-lived.

Test These Terms In Person

Understanding these concepts is one thing — experiencing them is another. When you try a fragrance from our Discovery Sets, pay attention to how it projects in the first hour, where you notice it fading, and what the dry-down smells like at hour 4. That's the real education.