The three notes of a perfume

Top Note:

Descriptors of scents that can be sensed upon the application of a perfume. They form a persons initial impression of a perfume and thus very important in selling a product. Usually sharp and striking.

Middle Note or Heart Note:

Perceived when the Top note dissipates. They form the heart of a perfume. Usually more mellow and rounded. Scents from this note appears anywhere from 5 minutes to 45 minutes from the Top note.

Base or Bottom Note:

Scent that appears close to the departure of the middle notes. Middle and Base notes together are theme of the perfumes. Base note brings depth and solidity to a perfume. Perceived from 1 -2 hours from application of perfume.