Concealer can be regarded as a kind of foundation. The difference is that concealer has better hiding power than ordinary foundation, is more suitable for skin, and is not easy to take off makeup for a long time. Everyone's face will have such and such flaws. Using concealer can make your face smooth and delicate again. There are generally three kinds of concealers: liquid, paste and strip. Liquid and strip concealer have better covering effect, but make-up techniques must be skilled; Paste concealer has a low concealing ability, but it is easy to create a natural makeup because of its refreshing texture. Generally speaking, it is mostly solid, but the viscosity is different. You can choose large-area or local products according to your own needs.