What is the purpose of highlighter in makeup?

Highlighter serves the important function of accentuating the high points of the face, such as the cheekbones, brow bones, and the bridge of the nose. By applying highlighter to these areas, a makeup artist can create the illusion of more dimension and radiance. This technique not only enhances the natural bone structure but also adds a luminous glow that catches the light, giving the face a more vibrant and youthful appearance.

The other options involve various makeup techniques that serve different purposes. Brightening the eyes and making them appear larger typically involves eyeshadows or eyeliners, while filling in sparse eyebrows focuses on brow products. Removing excess oil from the skin relates to mattifying products or powders, which serve to control shine but are unrelated to the highlighting function, making highlighter distinctly aimed at enhancing facial features rather than addressing these other aspects.