Don't know what "salliage" is, it's not in my dictionary. But in the few days I've used my perfume, the scent is still noticeable by evening. Hope this helps.

Sillage is the "trail" left by the fragrance worn by an individual: what is following him or her after his/her passage. You may not know the word but most likely you encountered an older lady in the street or in a store that reeks of perfume. I am thinking of floral like violet, gardenia, patchouli or some powdery scent, leaving a heavy trail of perfume. Too much of even the best scent can still be too much. This is the type of scent forcing you to open a window after a visit from such an individual to recover from the smell. Often, the old dear is a very nice and sweet lady who is just loosing her olfactory sense and unaware of how offensive her excess of perfume is to others.

Don't know what salliage means, however, my scent does not last that long. I like it very much though.