The confusion around "cologne"
"Cologne" is one of the most misused terms in fragrance. In common usage — particularly in North America — it has come to mean any fragrance marketed to men. In its precise meaning, it refers to a specific concentration of fragrance in alcohol and water.
What "cologne" actually means
Eau de Cologne (EdC) is a concentration of approximately 2–5% aromatic compounds in alcohol. It originates from the city of Cologne, Germany, where a specific light, citrus-forward formula was first produced in the early 18th century. A true eau de cologne is light, fresh, and short-lived — typically lasting 1–2 hours on skin.
Fragrance concentrations from lightest to most intense
- Eau de Cologne (EdC): 2–5% aromatic concentration. Fresh, light, short-lasting.
- Eau de Toilette (EdT): 5–15% concentration. The standard for most everyday fragrances. Typically lasts 3–5 hours.
- Eau de Parfum (EdP): 15–20% concentration. Richer, longer-lasting. Typically 6–8 hours.
- Parfum / Extrait: 20–40% concentration. The most intense and longest-lasting form. Can last all day.
Why the distinction matters for layering
When layering two fragrances with different concentrations, the more concentrated fragrance will generally dominate longer into the dry-down. An Eau de Parfum layered over an Eau de Toilette will eventually outlast the EdT, potentially changing the character of the combination as the day progresses. This isn't a problem if you account for it — but it's worth knowing that a layered mix changes over time, not just at first spray.
SCNTMIX accounts for concentration in its compatibility analysis. Explore any two fragrances in the MixMode to see how their concentrations interact.