Latest Videos From T3 You may like What is cologne? Eau de cologne (or simply "cologne") is one of the oldest forms of perfume in the Western world, dating back as far as the 14th century.

Eau de Cologne: 3-5% concentration. If a scent is merely labeled “cologne” it probably sits in this range. Eau de Toilette: 5-8% concentration. This is in some sense the “standard ...

Anything labelled Eau Fraiche, eau de cologne or eau de toilette also has a low concentration of fragrance oils and a more subtle scent.

Eau de toilette has less oil—5 to 15 percent—and lasts 3 to 4 hours. Cologne, on the other hand, contains 2 to 4 percent perfume oil and only lasts two hours.

EDT stands for eau de toilette and, according to Nausheen, contains 5-10% fragrance as part of the whole formulation, while EDP or eau de parfum has 7-15% fragrance.

We asked the experts how to make perfume last longer, and they've given us 8 tips, including layering, notes to choose and even a trick using a cotton ball.