We all hear the typical “rules” of concealers.  For example: green cancels out red, yellow covers red or brown, orange covers bluish flaws, etc.  The list continues forever.  There are so many concealers that are formulated to match your particular skin tone.  They are made with so much pigment that less truly is more.  Even a thin layer will cover those unwanted undertones.  All you have to do is choose the right shade for you.  What is the right shade?  Go for one that matches the skin tone of your lower eyelid.  Use a smaller brush for the application of the concealer you choose.  This way you have more control of where it goes and how much of it goes where.  If you’re like most women and use your finger you lose the control over where it goes because it becomes dependent on the size of your finger.  I have those pesky dark circles under my eyes and they drive me crazy.  I figured this would help out all you busy women out there!  So, when you can’t get enough sleep, make it look like you did!