Foundation makeup is a tinted liquid or powder that is applied to the entire face. Its main purpose is to even out the skin tone, camouflage skin imperfections and irregularities, and in some cases, treat and protect the skin. Foundation comes in different forms like liquid, powder, and cream, designed for various skin types and desired looks. It is an essential step in many makeup routines as it creates a smooth canvas for your other makeup products to be applied on top.