Which of the following is an example of a base note?

Patchouli is considered a base note in aromatherapy and perfumery, which serves an essential role in scent development. Base notes are characterized by their long-lasting qualities, providing depth and richness to a fragrance. They typically emerge after the top and middle notes evaporate, lingering on the skin for a prolonged period and creating a solid foundation for the overall aromatic profile.

Patchouli, derived from the leaves of the Pogostemon cablin plant, has a deep, earthy aroma, making it an ideal base note. Its rich scent not only complements other fragrances but can also stabilize more volatile notes, enhancing the blend's longevity and complexity. This characteristic makes patchouli a popular choice in both perfumes and therapeutic essential oil blends.

In contrast, clary sage, rosemary, and lemongrass are typically classified as middle or top notes. Clary sage and rosemary possess more ephemeral qualities, offering fresher, lighter scents that are usually perceived before the deeper, heavier scents emerge. Lemongrass, with its bright and zesty fragrance, is also considered a top note, widely recognized for its uplifting and invigorating properties. While all of these essential oils can be beneficial in aromatherapy, only patchouli stands out as a quintessential example of a