Powder contour is a makeup technique used to define and enhance the natural structure of the face. It involves applying a matte powder product that is darker than the skin tone to specific areas, such as the hollows of the cheeks, jawline, and sides of the nose. This creates shadows that can make the face appear more sculpted. To apply powder contour, a brush is typically used to blend the product seamlessly into the skin. It's important to choose a shade that complements the skin tone for a natural look. Setting the contour with a translucent powder can help it last longer throughout the day.