Perfume 101: Notes, Layers and How Long Scent Lasts

A fragrance changes on your skin over hours, from bright top notes to deeper base notes. That simple fact explains why perfume shopping can be so confusing. The scent you smell on a paper strip in the store is only the first chapter of a story that unfolds slowly on your wrist. A fragrance that seems sharp and citrusy at first sniff may become soft and woody by lunchtime. One that smells sweet at the counter may settle into something warm and musky by evening. Learning how scent works on the skin is the key to finding a fragrance you will truly love.

In this guide, our beauty editors explain the structure of a perfume, the difference between the common concentrations, how long scent typically lasts and how to layer and wear fragrance well. Think of it as a short course in a subject that is part chemistry, part art and entirely personal.

Understanding notes

Perfumers often describe a fragrance as a pyramid made of three layers, called notes. Each layer evaporates at a different speed, which is why a scent changes over time.