Two bottles of the same fragrance, same brand, same box. One says eau de parfum and costs considerably more. Nothing about the smell has been reinvented – what changed is a single number.
Concentration is the most consequential thing on a fragrance label and the least explained. It decides how long a scent lasts, how far it travels, what it costs to make, and which shelf it belongs on. For anyone launching a brand it is also one of the first decisions that permanently shapes unit economics.
| Eau de parfum | Eau de toilette | |
|---|---|---|
| Concentrate | 15–20% | 5–15% |
| Typical wear | 6–8 hours | 3–5 hours |
| Opening | Rounder, denser | Brighter, sharper |
| Projection | Moderate, sustained | Strong early, fades faster |
| Cost to produce | Higher | Lower |
| Suits | Evening, cool weather, base-heavy compositions | Daytime, heat, citrus and fresh compositions |
What the percentage actually measures
A finished perfume is fragrance concentrate dissolved in perfumer’s alcohol, sometimes with a small amount of water. The concentration figure is simply what proportion of the bottle is concentrate.
An eau de parfum at 18% is 18% fragrance oils and roughly 82% alcohol. An eau de toilette of the same fragrance at 9% is half the concentrate and correspondingly more alcohol. The formula – the recipe, the materials, the proportions between them – is usually identical. Only the dilution changed.
That is why the two smell recognisably like the same fragrance but not quite the same. Diluting a composition does not scale every note down evenly. Lighter, more volatile materials evaporate faster from a weaker solution, so an EDT tends to read brighter and thinner at the opening and gives up its base sooner.
None of these bands are legally defined. They are industry conventions, and a brand may label at its own discretion. Two products both called EDP can differ by several percentage points.
The full concentration ladder
| Grade | Concentrate | Typical wear | Character |
|---|---|---|---|
| Parfum / extrait | 20–30% | 8–12 hours | Dense and close to the skin. Usually dabbed rather than sprayed. Little or no water. |
| Eau de parfum | 15–20% | 6–8 hours | The modern default for fine fragrance. Balanced projection and longevity. |
| Eau de toilette | 5–15% | 3–5 hours | Brighter, more immediate, easier to wear in heat. The classic daytime format. |
| Eau de cologne | 2–4% | 2–3 hours | Traditionally citrus and herbal, applied generously. A different tradition, not simply a weaker EDT. |
| Eau fraîche | 1–3% | 1–2 hours | The lightest format, often with a higher water content. Refreshment more than fragrance. |
Two things sit off the top of this ladder entirely. Body and hair mists run at 1–3% and are formulated for a different substrate rather than being weak perfume. And oil-based formats – attar, mukhallat, perfume oil – carry no alcohol at all and are effectively undiluted, which puts them above extrait. We cover that side in our guide to attar vs perfume vs mukhallat.
How concentration changes longevity and projection
These are two different properties and concentration affects them differently, which is the source of most confusion on the subject.
- Longevity is how long any trace remains on skin. It rises fairly predictably with concentration, because there is simply more material to evaporate away.
- Projection – the distance at which others notice it – is driven mostly by the alcohol and by the volatile top and heart notes. A higher-alcohol EDT can actually project harder in the first thirty minutes than the EDP of the same fragrance, then collapse.
So an EDT can smell stronger initially and still be gone by lunch. An extrait can seem quiet from a metre away and still be detectable the following morning. Neither is malfunctioning.
Three other factors matter as much as the number on the box:
- What is in the formula. A composition built on sandalwood, oud, amber and musk will outlast a citrus-aldehyde one at the same concentration, because heavy base materials evaporate slowly by nature. Our guide to perfume notes covers why.
- Skin. Oilier and warmer skin holds fragrance longer. Dry skin lets it go faster, which is why the same bottle behaves differently on two people.
- Maceration. A properly rested fragrance performs better than an identical one that was bottled in a hurry. Maceration is invisible on a label and very audible on skin.
Why stronger does not mean better
Concentration is a specification, not a quality grade, and treating it as one leads brands into expensive mistakes.
Compositions are designed at a target strength. A fresh, citrus-led fragrance built for EDT will often turn heavy, sour or cloying at extrait concentration – the balance that made it work has been overloaded. Equally, a dense oriental designed as an extrait can read as thin and unfinished when diluted to 8%.
A cheap fragrance at 20% concentration is still a cheap fragrance, only more of it. Concentration multiplies whatever the formula already is. If the materials are poor or the composition is unbalanced, raising the percentage makes the problem louder, not smaller. This is the single most common error made by new brands trying to signal quality through a spec sheet.
What concentration does to price
The concentrate is close to all of the material cost in a bottle of perfume. Alcohol is inexpensive; the oils are not.
Doubling concentration therefore roughly doubles the cost of the liquid – but not the cost of the product. Bottle, cap, pump, carton, filling, warehousing and freight barely move. On a mass-market fragrance where the liquid is a small fraction of the landed cost, going from EDT to EDP might add relatively little. On a niche fragrance using genuine oud, orris or jasmine absolute, the liquid dominates and the same step changes the economics completely.
Which explains something that otherwise looks arbitrary: two brands can price an EDP upgrade very differently and both be rational, because their formulas cost different amounts per kilogram.
Which concentration should you launch at?
For a new brand this is one of the first irreversible-feeling decisions, and it is more commercial than creative. Five things should drive it.
- Your price tier. Fine fragrance and niche positioning effectively require EDP or extrait – consumers at that price expect it. Accessible and mass positioning is conventionally EDT, and launching a €25 extrait confuses more buyers than it impresses.
- Your olfactive direction. Citrus, aromatic and fresh compositions are built for EDT and often suffer above it. Amber, woody, gourmand and oud-led work better dense. Let the fragrance choose, not the marketing.
- Your market’s climate. Heat amplifies projection, so heavy concentrations that flatter a European autumn can be overwhelming in an Indian or Gulf summer. Many brands selling across both run the same fragrance at two grades.
- Your cost ceiling. Concentration and formula cost are the two levers you have, and they trade against each other. A perfumer can hit a given price per kilo at high concentration with a simpler palette, or at lower concentration with more expensive materials. Which of those serves the brand better is a real decision and worth making deliberately.
- Your MOQ and cash. Higher concentration means more capital tied up per unit in the first production run. For a first SKU with an uncertain sell-through rate, that matters more than it looks like it should. Our guide to the perfume manufacturing process covers how MOQ works in fragrance.
The practical answer for most new brands in fine fragrance is an eau de parfum in the 15–18% range. It meets consumer expectation at premium price points, gives the perfumer room to build a proper base, and avoids the cost exposure of extrait on a first run. Deviate from it for a reason, not by default.
Deciding the spec for your first SKU?
Sawai develops fine fragrance from brief to bottle – formulation to a target cost per kilo, at the concentration your market and margin actually support.
The short version
- EDP is 15–20% concentrate, EDT is 5–15%. Usually the same formula, differently diluted.
- None of the bands are legally defined. They are conventions, and brands label at their own discretion.
- Longevity rises with concentration. Projection does not necessarily – a higher-alcohol EDT can project harder early and fade sooner.
- What the formula is made of matters as much as its strength. Heavy base materials outlast light ones at any concentration.
- Concentration is a specification, not a quality grade. It multiplies whatever the formula already is.
- Most new fine fragrance brands should launch at EDP, 15–18%, and deviate only for a specific reason.
Frequently asked questions
What is the difference between eau de parfum and eau de toilette?
The amount of fragrance concentrate dissolved in the alcohol. An eau de parfum carries roughly 15–20% and typically wears six to eight hours; an eau de toilette carries 5–15% and wears three to five. The underlying formula is usually identical, so they smell like the same fragrance – but dilution does not scale every note evenly, so the EDT reads brighter and thinner at the opening and gives up its base sooner.
What does eau de parfum mean?
Literally “perfume water” in French. In practice it denotes a concentration grade of roughly 15–20% fragrance concentrate in alcohol – the modern default for fine fragrance, sitting between eau de toilette below it and parfum or extrait above. The term is a convention rather than a regulated definition, so the exact percentage varies between houses.
Which lasts longer, EDP or EDT?
EDP, typically six to eight hours against three to five, because there is more concentrate on the skin to evaporate. Note that longevity and projection are different things – an EDT with its higher alcohol content can project more strongly in the first half hour before fading, which is why some people find the lighter version smells stronger at first.
Is a higher concentration always better?
No. Fragrances are designed at a target strength, and a fresh citrus composition built for EDT can turn heavy or sour at extrait concentration because the balance has been overloaded. Concentration multiplies whatever the formula already is – it amplifies a poor one as readily as a good one. It is a specification, not a quality grade.
Why is eau de parfum more expensive than eau de toilette?
The concentrate is nearly all of the material cost in a bottle; the alcohol is cheap. Roughly doubling the concentration roughly doubles the cost of the liquid. Packaging, filling and freight barely change, so how much the price rises depends on how expensive the formula is per kilogram – which is why the EDP premium varies so much between brands.
What concentration should a new fragrance brand launch at?
For most new fine fragrance brands, an eau de parfum at 15–18%. It matches consumer expectation at premium price points, gives the perfumer room to build a proper base, and avoids the working-capital exposure of extrait on a first production run. Launch lighter if the composition is citrus or aromatic, or if the target market is hot; launch heavier only with a clear reason.
From brief to bottle, at the right specification
Sawai formulates to a target cost per kilogram and a target concentration – with owned naturals, in-house perfumers and compliant manufacturing behind every batch, for more than 100 brand partners.
