Roja Parfums Apex (M) Edp 100Ml Top Notes: These are the initial scents that you will smell upon application. They are usually the lightest notes and can set the tone for the fragrance.Heart Notes: Also known as the middle notes, these emerge after the top notes have evaporated. They form the core of the fragrance and are often more complex and enduring.Base Notes: These are the foundation of the fragrance and tend to be the longest-lasting. They develop fully after the fragrance has dried down and can linger for hours or even days.