Face primers are essential for makeup wearers. They create a smooth canvas for application and protect your skin from the nasty side effects of cosmetics (hello pimples!). If after a long day, your entire makeup look has melted into non-existence, skipping this essential step could be the reason why. And if you're already using primer, it could simply be the wrong one. Like a lot of other beauty staples, there are primers formulated specifically for your skin type; dry, oily, normal, sensitive or otherwise. If you have no idea which one may work best for your skin, our top ten must haves will bring you closer to a final choice.