Makeup mirrors are concave. Concave mirrors, also known as magnifying mirrors, are curved inward in the center, like a spoon. This has the effect of magnifying the thing in front of it.
A magnified or concave makeup mirror allows you to see every detail in your face when applying makeup. Magnification levels range from 2x to 20x. Mirrorvana's makeup mirrors offer different levels of magnification to choose from.