International Therapy Examination Council (ITEC) Aromatherapy 2025 – 400 Free Practice Questions to Pass the Exam

Top notes are characterized by their sharp, often refreshing scents that hit the olfactory senses immediately upon application. They are typically the first aromas perceived when an essential oil is applied, creating an initial impression of the blend. This category includes citrus scents like lemon and bergamot, as well as light herbal or floral aromas.

In addition to their immediate impact on smell, top notes are also known for their quick absorption into the skin. This rapid absorption contributes to their short-lived nature, as they tend to evaporate faster than other types of notes. Consequently, they provide a fleeting yet invigorating effect that many find uplifting.

In contrast, the other aroma types have distinct characteristics that do not align with the qualities of sharp smells and quick absorption. Base notes, for example, are heavier and more grounding, providing longevity but often lacking the initial sharpness. Middle notes have a balanced character but do not possess the immediate intensity that top notes do. Sweet notes refer more to a specific scent type and do not denote a category of note based on absorption or volatility. Understanding these classifications helps in creating effective blends for therapeutic purposes in aromatherapy.