Natural perfumes generally have a shorter longevity on the skin, as natural ingredients tend to evaporate faster than synthetic alternatives. This means they may require more frequent reapplication throughout the day. Additionally, natural perfumes have a softer sillage, meaning their scent does not project as far or as intensely as synthetic fragrances might. Lastly, natural perfumes are often more expensive due to the cost of sourcing high-quality, organic ingredients.