Hair contouring is a coloring technique that uses a combination of free hand application and highlighting paired with the careful positioning of different tones and depths around the face to highlight and shadow targeted areas. Darker tones create shadows and are used to shorten or narrow the face shape, whilst lighter tones elongate and lengthen the face shape by reflecting light.
This clever placement of color and the careful selection of complimentary tones perform an optical illusion and make your face appear more defined and features more accentuated.