What is the name of the cosmetic product used to even out skin tone?

The cosmetic product used to even out skin tone is foundation.

Foundation is applied to the face, and sometimes the neck, to create a more uniform complexion. It can reduce the visual contrast of redness, blotchiness, freckles, or other discoloration, while coverage ranges from sheer to full. Foundation may be sold as a liquid, cream, powder, stick, or mousse.

Cosmetics designed to lighten or even the complexion have a long history. Ancient Egyptians used complexion products, while ancient Greek and Roman women sometimes used white lead and chalk to achieve a pale appearance. Those historical substances could be dangerous; modern foundations use cosmetic pigments and other ingredients formulated for contemporary use.

Foundation is commonly confused with concealer and powder. Concealer is generally more concentrated and used on smaller areas, while powder may set makeup, reduce shine, or provide lighter coverage. Primer is applied before foundation to affect how makeup feels and lasts; it is not primarily the product that creates an even skin-colored complexion.