Foundation makeup helps even out your skin tone and offers a range of skin benefits, depending on the formula. Foundation can help provide coverage of skin imperfections, discoloration, and scars. Foundation comes in many different forms, including liquid, cream, and powder. Liquid foundation is the most common type of foundation makeup and can be applied with a brush, a sponge, or your fingers. It goes on quickly and provides sheer to medium to full coverage, depending on the formula.