Concealer is a useful tool in any woman's cosmetic arsenal. It covers splotchy or spotty skin and temporarily gives it an evener finish.
How it works: Essentially, concealer is spackle. Pigments are added to an oil, powder, or cream base that approximate human skin tone. When concealer is applied to a darkened area, the pigment covers up the icky blemish.
Active ingredients: Iron oxides give most concealers their color; the rest of the ingredients provide color and supply texture, adherence, and moisture.
Buy: At a cosmetics store or pharmacy.
Popular Products: Concealers are made by pretty much every cosmetics company. Popular products are made by Max Factor, Revlon, Maybelline, and CoverGirl and Olay.