A perfume is a scent, or more often a fragrant composition more or less persistent naturally emitted by a plant, animal, fungus, an environment. In nature, perfumes are often chemical and biochemical messages, including pheromones or hormones.

There are many types of scents and themes of perfumes. Some popular types are:

Orientals/Ambers: Like Coco Chanel or Obsession by Calvin Klein.
Florals: One of the most popular choices. Beautiful by Estee Lauder is an example of a Floral fragrance.
Citrus: Calvin Klein’s CK One.

A sample of perfume may also be the product of a natural substance (an extract of flower for example) or created or recreated from various flavorings, solvents and fixatives for use in cosmetic samples or perfume objects, animals or indoor air. It is then usually made from plant species and / or synthetic molecules. The use of fragrances by humans is very ancient, dating back to ancient times.