What is the evaporation rate of middle note oils?

Middle note oils, often referred to as heart notes, have a moderate evaporation rate. This characteristic allows them to provide a harmonic balance in a fragrance blend, bridging the gap between the lighter top notes and the heavier base notes.

Middle notes typically emerge after the top notes have dissipated, usually within 15 to 30 minutes after application. They generally last longer than top notes, making them essential for the overall scent profile of a blend, as they help to stabilize the fragrance and provide a lasting impression.

In the context of aromatherapy, these oils contribute not only to scent but also to the therapeutic properties of the blend, often influencing emotions and physical state at a deeper level than top notes. Thus, the moderate evaporation rate is crucial for achieving the intended balance and therapeutic effects in aromatherapy applications, which distinguishes them from both the rapid evaporation of top notes and the slower release of base notes.