Perfume Concentration
Friday, March 13, 2009
Perfume oil is necessarily diluted with a solvent because undiluted oils (natural or synthetic) contain high concentrations of volatile components that may 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 produced using solvents such as jojoba, fractionated coconut oil or wax.
The cost of a perfume is directly related to its concentration, with the least diluted being the most expensive formulation of the scent. The following chart summarizes how the concentration by percent/volume of perfume oil relates to its strength (approximate, in hours) and price range:
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