Back to the Basics: What is Primer?

Basically there are a bunch of different kinds of primers, and mostly they're for making your makeup go on smoother and lasting longer. I have found that when you apply powders to your face, you need a little bit of a  "sticky" or "wet" substance to help it cling to your face... look at it this way- if you were to put baby powder on your hand.. would it stay longer if you left it dry? Or if you wet your hand first?? Exactly... anyway, there are many types of primers; foundation, eyeshadow, eye lash, and lip. Just to name a few. And through these primers, there are subsections of these different types. Some hydrate your skin, some are clear, others boost your skin tone, and others help even out your skin tone. (Face)-- basically for primers, i always go for clear, odorless ones. Especially for skin/foundation primers. I can't say which ones are best, because it takes alot of experimenting because there are so many kinds. But personally, my favorite foundation primer is hourglass veil, urban decay primer potion original, sephora lip primer, and estee-lauder mascara primer! :)