Laurel leaf oil, also known as bay leaf oil, is an essential oil extracted from the leaves of the Laurus nobilis plant, also known as the bay laurel tree. It is a colorless to pale yellow liquid with a fresh, woody and slightly spicy aroma. It is commonly used in the food industry as a flavoring agent, particularly in Mediterranean and Indian cuisine. In traditional medicine, it's used to help with digestion and to relieve pain. It is also used in the cosmetic and perfumery industries as a fragrance ingredient, and as a natural remedy for skin and hair care. It is considered safe for use in food and personal care products when used in appropriate concentrations, but it should be used with caution as high doses may be toxic. It's also recommended to avoid using it during pregnancy.