Concealers also work for contouring if you use a concealer that is two shades darker. Black ink is used as eye-liner and white concealer is used as lipstick and eyeshadow. Girls would apply white lipstick over pink lipstick or place under-eye concealer on their lips. Makeup sponges can be used to apply foundation, blend concealer, and apply powder or highlighter. Camouflage makeup is a much heavier pigmented form of concealer. A purple-tinted concealer can make sallow complexions look brighter. Recently using concealer to highlight has become a very popular makeup technique. This concealer works best on blemishes and small areas of discoloration. Concealer can come in liquid, cream or stick form. Liquid concealer is the most popular because it works for most skin type. Both concealer and foundation are typically used to make skin appear more uniform in color. Concealer can be used alone or with foundation. Concealer is available in a variety of shades. Concealer is commonly used by cosmetic-conscious men. This type of concealer is rarely used, especially to conceal.