I am wondering because yesterday I went to a Bare Escentuals store and the lady also put primer on my hands to put on my face. I don't feel like it was necessary...I am fifteen and the moisturizer seemed like enough coverage with a light coat of foundation. Now Golden Medium matches my skin tone perfectly, and the cleanser/moisturizer are wonderful, so that is why I want to get this, but I don't want the skin to look "too perfect". So is the primer really necessary?