CONCENTRATION LEVELS OF PERFUMES

     Perfume oil must be diluted with a solvent as undiluted oils either natural or synthetic contain high concentrations of volatile components that may result in allergic reactions and most probably injury when applied directly to skin ot clothing. Solvents help to vaporize the essential oils to diffuse them into the air. Until today. most common solvent for perfume oil dilution are ethanol or mixture of ethanol and water. It also can be diluted by jojoba, fractionated coconut oil or wax. 


     Different perfume house have different amounts of oils to each of their perfumes. Therefore, although the oil concentration of a perfume in eau de parfum(EDP) dicution will necessarily be higher than the same perfume in eau de toilette(EDT) from within the same range. The cost of a perfume is directly related to its concentration, with the least diluted being the most expensive.


     The chart below summarizes how the concentration by percent/volume of perfume oil relates to its strength and price range:

Fragrance Type	Concentration	Strength	Cost Factor
Parfum	20-40%	5-7 hrs	$$$$$
Eau de Parfum	10-20%	4 hrs	$$$$
Eau de Toilette	8-10%	3 hrs	$$$
Eau de Cologne	3-5%	1-2 hrs	$$
Eau Fraiche	3%	1 hr	$