What it is: A long-wearing undereye and face-brightener pen.What it does: This shadow eraser instantly corrects shadows cast by undereye hollowness and facial lines while brightening dark circles. How to use: First apply your eye serum and cream, giving them time to absorb. Place Correct and Brighten in Trish's signature Triangle of Light, an upside-down triangle under each eye, or areas of the face you want to highlight, gently pressing it into your skin with a laydown brush, makeup sponge or your ring finger until blended. 0.12 oz. Cruelty-free