Scents can be categorized in different groups such as top, middle, or base notes. Top notes evaporate quickly and have the shortest life; middle notes make up the majority of essential oils and take some time to establish their scent; base notes are heavy and last the longest as they evaporate slowly. Learn which oils fall under each category and how they blend together: https://www.doterra.com/US/en/blog/healthy-living-describe-a-scent
Whether or not an aroma is appealing depends on personal preference. How do you know if you’ll like the scent of a blend of oils?
doTERRA Essential Oils