What is the primary effect of applying foundation on the skin?

The primary effect of applying foundation on the skin is creating an even color. This is a fundamental purpose of foundation, as it helps to unify skin tone by concealing imperfections such as redness, blemishes, and uneven pigmentation. By applying foundation, individuals can achieve a more uniform appearance, which serves as a base for additional cosmetics and enhances overall makeup application.

While adding luminosity, enhancing texture, and providing hydration are aspects that some foundations may offer depending on their formulation, the central aim of foundation is to provide coverage and balance the skin's color. This foundational step is crucial in makeup artistry as it sets the stage for a polished look.