My eyebrows are a mess.  I need to get them done ASAP.  Got me thinking about how to perfectly shape your brows and give your eyes that lift they need to look their best.  Here is a formula I found at the University of Makeup for the perfect shaped eyebrows.

A: Draw an imaginary line from the outside corner of your nose upwards towards the inside corner of your eye. Your eyebrow should end where it meets this line.

B: Draw another imaginary line from the tip of your nose crossing the pupil of your eye diagonally. The point where this line cuts the eyebrow is the perfect position for the arch.

C: Draw an imaginary line from the bottom of your nose to the outer corner of your eye and beyond.  This is where your eyebrow should end.