Oud Vanille by Franck Olivier has moderate longevity and sillage:

• Longevity: The fragrance typically lasts around 6-8 hours on the skin, with some reports suggesting it may last longer depending on application and individual skin chemistry​

• Sillage: The sillage is generally moderate to strong, with the rich vanilla and oud notes leaving a noticeable trail but not being overly overpowering. It has a strong presence, especially in the first few hours of wear​

This makes Oud Vanille a good option for those who want a fragrance that projects well but isn’t too overwhelming, with a moderate wear time.