Dilution classes and terminologies thumb|upright|Original Eau de Cologne flacon 1811, from Johann Maria Farina, Farina gegenüber thumb|Vintage atomizer perfume bottle Perfume types reflect the concentration of aromatic compounds in a solvent, which in fine fragrance is typically ethanol or a mix of water and ethanol. Various sources differ considerably in the definitions of perfume types. The intensity and longevity of a fragrance is based on the concentration, intensity, and longevity of the aromatic compounds, or perfume oils, used. As the percentage of aromatic compounds increases, so does the intensity and longevity of the scent. Specific terms are used to describe a fragrance's approximate concentration by the percent of perfume oil in the volume of the final product. The most widespread terms are: Parfum or Extrait (P): 15–40% aromatic compounds (IFRA: typically ~20%). In English, parfum is also known as perfume extract, pure perfume, or simply perfume. Esprit de parfum (ESdP): 15–30% aromatic compounds, a seldom used strength concentration between EdP and parfum. Eau de parfum (EdP) or Parfum de toilette (PdT): 10–20% aromatic compounds (typically ~15%). It is sometimes called "eau de perfume" or "millésime." Parfum de toilette is a less common term, most popular in the 1980s, that is generally analogous to eau de parfum. Eau de toilette (EdT): 5–15% aromatic compounds (typically ~10%). This is the staple for most masculine perfumes. Eau de cologne (EdC): 3–8% aromatic compounds (typically ~5%). This concentration is often simply called cologne. Eau fraîche: 3% or less aromatic compounds. This general term encompasses products sold as "splashes," "mists," "veils" and other imprecise terms. Such products may be diluted with water rather than oil or alcohol.
Dilution classes and terminologies thumb|upright|Original Eau de Cologne flacon 1811, from Johann Maria Farina, Farina gegenüber thumb|Vintage atomizer perfume bottle Perfume types reflect the concentration of aromatic compounds in a solvent, which in fine fragrance is typically ethanol or a mix of water and ethanol. Various sources differ considerably in the definitions of perfume types. The intensity and longevity of a fragrance is based on the concentration, intensity, and longevity of the aromatic compounds, or perfume oils, used. As the percentage of aromatic compounds increases, so does the intensity and longevity of the scent. Specific terms are used to describe a fragrance's approximate concentration by the percent of perfume oil in the volume of the final product. The most widespread terms are: Parfum or Extrait (P): 15–40% aromatic compounds (IFRA: typically ~20%). In English, parfum is also known as perfume extract, pure perfume, or simply perfume. Esprit de parfum (ESdP): 15–30% aromatic compounds, a seldom used strength concentration between EdP and parfum. Eau de parfum (EdP) or Parfum de toilette (PdT): 10–20% aromatic compounds (typically ~15%). It is sometimes called "eau de perfume" or "millésime." Parfum de toilette is a less common term, most popular in the 1980s, that is generally analogous to eau de parfum. Eau de toilette (EdT): 5–15% aromatic compounds (typically ~10%). This is the staple for most masculine perfumes. Eau de cologne (EdC): 3–8% aromatic compounds (typically ~5%). This concentration is often simply called cologne. Eau fraîche: 3% or less aromatic compounds. This general term encompasses products sold as "splashes," "mists," "veils" and other imprecise terms. Such products may be diluted with water rather than oil or alcohol.