New from Trish McEvoy is Brow Builder ($32). This makeup pen was created to help give thin or sparse brows a little bit more life. Simply twist the bottom of the pen and wait for the fibrous nylon gel to make it way through the chamber.
Apply the comb-tipped applicator to your brows and fill them in with small strokes to ensure the color gets distributed evenly. If you fancy fuller eyebrows, all you have to do is extend your strokes slightly outside of your natural hair line.
But please use a gentle hand — you wouldn't want to wind up looking over-drawn, fake and severe! Brow Builder is available in either light or dark shades to match most hair colors, but if you are a redhead, I suggest blending in a bit of auburn eyeshadow for a more natural look.