What is a trail in perfumery?
A perfume trail is the olfactory trace that a perfume leaves behind. It is defined as the capacity of a perfume to leave a pleasant smell on the skin or clothes after its application. It is generally described as being more intense and longer lasting than the initial scent of the perfume. A strong sillage is desirable because it allows the fragrance to last longer and diffuse around the wearer. Strong sillage fragrances are often used for special occasions, while low sillage fragrances are more suitable for everyday use.