Makeup primer is a base for foundation that allows it to go on smoother and last longer.
Primers can also help smooth any fine lines, wrinkles or large pores and some help to colour-correct rosacea or conceal acne spots.
Primer can even be worn on its own.
Makeup primers can also be worn on their own for a natural finish that is just a bit more polished than the bare faced look.
Primers are even available just for your eyelids to prevent creasing. If a primer is paired with a long-wear formula eye shadow or eye liner your look will stay put all day, or primer alone can double as a light eye shadow.
Note: Using your fingertips to apply makeup primer allows you to really work the product into your skin.