Bergamot oil is a complex mixture of natural chemical compounds, making it a valuable resource for a variety of applications. The primary constituents of bergamot oil include. This dominant compound contributes to the citrusy scent of bergamot oil. Limonene is not only aromatic but also possesses potential health benefits, including antioxidant and anti-inflammatory properties. Linalool lends a floral and slightly sweet note to the aroma of bergamot oil. It is also found in lavender and coriander, making it a popular choice in perfumery. This compound contributes to the oil's relaxing and soothing qualities. It is often used in aromatherapy for its calming effects on the mind and body.

This compound, while giving bergamot oil its characteristic scent, can also make the oil photosensitive, meaning it can cause skin irritation when exposed to sunlight. Therefore, many bergamot oils used in cosmetics and skincare have undergone a process to remove or reduce bergaptene.

The unique combination of these and other compounds in bergamot oil gives it a multifaceted aroma, making it a prized ingredient in perfumery. Perfumers often use it as a top note to add a refreshing and bright opening to their fragrances.