You can use concealer nearly anywhere. In addition to the more obvious blemishes and under-eye circles, you can apply it to your eyelids as a shadow primer, around the nose as a color-corrector, or around the eyebrows to achieve a clean line. People also often use lighter shades for highlighting the nose, chin, cupid's bow, and brow bone and deeper tones for contouring the cheekbones, upper forehead, and neck.