Top Notes of a perfume are formed by the smallest, most volatile molecules. As soon as you spray a fragrance, these top notes want to jump off the skin and make their presence felt.

Heart Notes take a little longer to emerge than the top notes. Once you have sprayed a fragrance onto your skin, you can expect the heart notes to shine through after around 15 to 30 minutes.

Base Notes tend to emerge on your skin around an hour after application. They then linger for much longer than the other notes.