Lemon

What it is

Lemon oil is most commonly associated with the aromatic peel of Citrus × limon. Kew treats lemon as a cultivated hybrid rather than a simple wild species, which is typical of the complicated taxonomy of cultivated citrus.

The smell of lemon peel is different from lemon juice: perfumery is primarily interested in the volatile aromatic material concentrated in the outer peel.

What to notice

Lemon tends toward:

• sharp zest
• bright freshness
• clean citrus lift
• a slightly bitter peel effect
• green or aromatic nuances
• a dry, sparkling top-note character

Compared with sweet orange, it is usually more piercing and less rounded. Compared with bergamot, it often feels less floral and more directly zesty.

How it appears in perfumery

Lemon is widely used to create immediate brightness in colognes, citrus fragrances, aromatic structures and top-note accords.

Because citrus top notes evaporate relatively quickly, lemon often works as an opening effect rather than the main long-lasting body of a perfume.

Peel, not just “lemon”

A fragrance can smell lemony without containing lemon oil. Citral-rich materials and other citrus or synthetic ingredients can create a lemon-like impression, so explicit source information should control the material tag.