I can't really explain why it projects better other than the obvious fact that it not being on exposed skin it doesn't evaporate as quickly. But I can attest to the fact that I get much better sillage and longevity from spraying underneath my clothes. When you spray on your neck for example the scent is so close to your nose that you quickly get used to smell and will lose the scent quickly. If it is farther away from your nose you don't get used to it and you will smell it for the full duration of it's longevity. I definitely say give it a try at least!