Parfum, Eau de Parfum, Eau de Toilette, Eau de Cologne — if you’ve ever stood in front of a shelf wondering what the difference actually is (beyond the price), you’re not alone. It all comes down to one thing: the concentration of fragrance oil dissolved in the alcohol and water base. Here’s exactly what that means for how a scent performs.
The Concentration Scale
| Type | Fragrance Oil Concentration | Typical Longevity |
|---|---|---|
| Parfum / Extrait de Parfum | 20-40% | 8-24 hours |
| Eau de Parfum (EDP) | 15-20% | 6-8 hours |
| Eau de Toilette (EDT) | 5-15% | 3-5 hours |
| Eau de Cologne (EDC) | 2-4% | 2-3 hours |
| Eau Fraiche | 1-3% | 1-2 hours |
The higher the concentration of pure fragrance oil, the stronger the scent, the longer it lasts on skin, and generally the higher the price, since fragrance oil is by far the most expensive ingredient in the bottle.
Parfum (Extrait de Parfum)
This is the most concentrated and most expensive form. Because so little alcohol is used, Parfum tends to sit closer to the skin rather than projecting outward, making it a more intimate, long-lasting option. It’s the choice for anyone who wants to apply once in the morning and still catch a trace of it that evening.
Eau de Parfum (EDP)
The most popular format for both designer and inspired perfumes, EDP strikes a balance between strength, longevity and price. Most of our Yodeyma inspired perfumes and the majority of branded fragrances in our men’s and women’s fragrance ranges come in EDP concentration, and for most people it’s the sensible everyday choice.
Eau de Toilette (EDT)
Lighter and fresher than EDP, EDT works particularly well for daytime wear, warmer weather, or scent families built around citrus and aquatic notes that are naturally lighter in character to begin with. Because the concentration is lower, you’ll typically need to reapply if you want the scent to carry through a full day.
Eau de Cologne and Eau Fraiche
These lightest concentrations are designed for quick refreshment rather than all-day wear. They’re a good option layered over a base of the same fragrance in EDP or EDT form, or for a light spritz during the day without overwhelming an existing scent.
Does a Higher Concentration Always Mean “Stronger Smelling”?
Not necessarily in terms of how the fragrance projects moment to moment; that also depends on the specific notes used (see our guide to perfume notes). What concentration reliably affects is how long the scent lasts and how close to the skin it sits. A lightly-scented EDP will still generally outlast a heavier-smelling EDT of the same fragrance family.
Which Should You Choose?
- Everyday office wear: EDT or a lighter EDP, so the scent doesn’t overwhelm in close quarters.
- Evenings and special occasions: EDP or Parfum for maximum longevity and depth.
- Warm weather: EDT or Eau de Cologne, since heat amplifies projection regardless of concentration.
- Trying a new scent family: Start with EDT as a lower-cost way to test whether you like the notes before investing in EDP or Parfum.
Why Concentration Affects Price So Much
Fragrance oil is by a wide margin the most expensive ingredient in any bottle, far more than the alcohol, water or packaging. This is exactly why a Parfum-strength fragrance costs meaningfully more to produce than the same scent formulated as an EDT, and why brands often sell multiple concentrations of the same fragrance name at noticeably different price points. Understanding this pricing logic can help you decide where it’s worth spending more, and where a lighter, cheaper concentration genuinely serves you just as well.
Can You Convert Between Concentrations?
Not directly, an EDT and an EDP of the “same” fragrance name aren’t simply diluted or concentrated versions of an identical liquid; perfumers often adjust the underlying formula slightly between concentrations to account for how the different alcohol ratio affects the overall balance. This is why some people find a specific EDT version of a fragrance suits them better than the EDP, or vice versa, rather than simply preferring “more” or “less” of the exact same scent.
How This Applies to Inspired Perfumes
The same concentration logic applies fully to inspired perfumes. Our entire Yodeyma range is formulated as genuine Eau de Parfum, which is a meaningful quality signal, since many budget alternatives in the wider inspired perfume market use much lower, EDT-or-weaker concentrations while still charging EDP-adjacent prices. Always check the concentration listed on the product page before comparing prices between brands.
Frequently Asked Questions
Is Eau de Parfum always better than Eau de Toilette?
Not always “better”, just different in intended use. EDP suits evening wear and longevity; EDT often suits daytime and warmer weather better.
Can I make an EDT last longer?
Yes, application technique matters a lot. See our guide on how to make perfume last longer for practical tips.
Why do some brands only sell EDT and not EDP?
Some scent families (particularly fresh, citrus and aquatic notes) are traditionally formulated lighter, since a heavy concentration of these notes can smell synthetic rather than more luxurious.
Ready to find your concentration? Browse our full fragrance collection at WhiffDrop and check the listing for EDP, EDT or Parfum on each product page.
