I just started experimenting with natural oils mixing them and I noticed that there is very little or no sillage. I knew about the problem with longevity.

For example I mixed

Bergamot
Clary sage
Rose
Jasmine
Neroli
Sandalwood
Vetiver
Oakmoss
Patchouli
and was able to smell it only when put my nose to the wrist.

What are the chemicals that are "responsible" for the sillage?