Why use foundation?

because some people get spots and foundation covers it up btw it also makes people look prettier

The real reason people use foundation is that it works as a environmental barrier to the skin as well as it enhancing the visible look of the skin.

Most foundations also contain nutrients to treat the skin and moisturize. Some are developed to treat skin which suffers from acne, they calm the redness and control the oil flow as well as being antibacterial. Mineral foundations contain minerals and are completely natural.

Foundations work as part of a Skin Care routine, they are just as important as good creams.