I think people put a bit too much emphasis on skin chemistry. I'm not denying its implication but stating that its given far too much attention that it deserves.
Rarely does a perfume smell the same on skin as it does on paper.
Some perfumes, by nature, do not project as much as others.
My remedy for "skin scents" is to use them when I am not on the move. Mostly when I am at work or in a cafe. This way I can smell the perfume more than when I am on the move.
If it doesn't project enough, spray more.