I've been seeing this trick everywhere lately and finally had the chance to test it out! I have to say, I'm impressed and had a total "duh" moment after applying the red lip liner and then adding my concealer on top. The two blend together and create a brightening salmony color which if you have been following any news about under eye concealers, is the trick! Orange is the opposite of blue and red is the opposite of green on the color wheel. When concealing, you want opposite/complimentary colors to neutralize. Art school 101. 

I'm definitely keeping this trick handy when I'm super tired and it shows! I love the brightening effect. I wish I had thought about this back in college.

xoxo