Highlight
A light or shimmering product placed on the high points of the face to catch light.
Also: highlighter, strobing
Highlight is the partner of contour. A lighter or light-reflecting product is placed where light naturally falls: the tops of the cheekbones, the brow bone, the bridge of the nose, the inner corners of the eyes and the Cupid's bow. It makes those points seem to come forward. A face shaped with highlight alone is sometimes called strobing. Korean "glass skin" looks of the 2010s rely on it heavily.