Fragrances (26396)
Perfume is a mixture of fragrant essential oils and aroma compounds, fixatives, and solvents used to give the human body, objects, and living spaces a pleasant smell. more...
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Perfume is associated in many cultures with the sensual and romantic side of life.
Describing a perfume
The precise formulas of commercial perfumes are kept secret, but even if they were widely published would be dominated by such complex chemical procedures and ingredients that they would be of little use in providing a useful description of the experience of a scent. Nonetheless, connoisseurs of perfume can become extremely skillful at identifying components and origins of scents in the same manner as wine experts .
The most practical way to start describing a perfume is according to its concentration level, the family it belongs to, and the notes of the scent, which all affect the overall impression of a perfume from first application to the last lingering hint of scent.
Concentration levels
Perfume oil is necessarily diluted with a solvent because undiluted oils (natural or synthetic) contain high concentrations of volatile components that will likely result in allergic reactions and possibly injury when applied directly to skin or clothing. Solvents also vaporize the essential oils, helping to diffuse them into the air.
By far the most common solvent for perfume oil dilution is ethanol or a mixture of ethanol and water. Dilutions of the perfume oil can also be done using solvents such as jojoba, fractionated coconut oil or wax. The concentration by percent/volume of perfume oil is as follows:
Perfume extract: 20%-40% aromatic compounds;
Eau de parfum: 10-30% aromatic compounds;
Eau de toilette: 5-20% aromatic compounds;
Eau de cologne: 2-5% aromatic compounds;
As the percentage of aromatic compounds decreases, so does the intensity and longevity of the scent created. Different perfumeries or perfume houses assign different amounts of oils to each of their perfumes and as such, although the oil concentration of a perfume in eau de parfum (EDP) dilution will necessarily be higher than the same perfume in eau de toilette (EDT) form within the same range, the actual amounts can vary between perfum houses such that an EDT from one house may be stronger than an EDP from another.
Furthermore, some fragrances with the same product name but having a different concentration name may not only differ in their dilutions, but actually use different perfume oil mixtures altogether. For instance, in order to make the EDT version of a fragrance brighter and fresher than its EDP, the EDT oil may be "tweaked" to contain slightly more top notes or less base notes. In some cases, words such as "extrême" or "concentrée" appended to frangrance names might indicate completely different frangrances that relates only because of a similar perfume accord. An instance to this would be Chanel‘s Pour Monsieur and Pour Monsieur Concentrée.
Read more at Wikipedia.org
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