"Sillage" (pronounced see-yahzh) is a term used in perfumery to describe the trail of scent left behind by a person wearing perfume or fragrance. It refers to the aura or cloud of fragrance that surrounds the wearer as they move through the air. Sillage is a measure of how far a fragrance projects from the body and how noticeable it is to others. When considering sillage, it's important to find a balance that suits your preferences and the context in which you'll be wearing the fragrance. Some people enjoy fragrances with a strong and noticeable sillage, while others prefer more subtle scents that are only noticeable up close. Keep in mind that sillage is subjective, and what might be strong to one person could be moderate to another. When trying out a new fragrance, consider how it projects and interacts with your skin before deciding if the sillage level is suitable for you. The strength of a perfume's sillage is influenced by several factors:

Perfumes with higher concentrations of fragrance oils, such as pure perfume or parfum, tend to have a stronger sillage due to the greater amount of aromatic compounds released into the air.

Alcoholic and water bases project more into space, while oil bases wear closer to the body.

Certain fragrance notes have more "throw" than others, meaning they are more likely to project and create a noticeable sillage. Strong, bold, or distinctive notes like spices, woods, and oriental elements often contribute to a robust sillage.

How you apply the perfume can affect its sillage. Spraying on pulse points, areas with good blood circulation (like the wrists, neck, and behind the ears) can enhance sillage since these areas emit heat that helps volatilize the fragrance.

Environmental conditions play a role in sillage. In warmer and more humid environments, fragrances tend to diffuse more easily, which can result in a more prominent sillage.

Each person's skin chemistry is unique, and this can influence how a fragrance interacts with your body's natural scent. Some people's skin may amplify the sillage of certain fragrances, while others might experience a more subtle projection.