The scent of a fragrance can change throughout the day. This is because different ingredients come into play at various stages of the fragrance’s life on the skin. Perfumers distinguish between the various stages in three ways:
Top Notes: These notes introduce the fragrance and can last up to 15 minutes.
Middle Notes: Also known as the heart of the fragrance, the middle notes unfold and develop a few minutes after the cologne is applied to the skin. They appear after the top notes disappear and can last throughout the whole fragrance experience.
Bottom Notes: These create the final impression and also the most lasting. They can last several hours after the fragrance is applied.