I have done a blog post on this before, but I think it was a written post and I think for this topic it is probably best explained by showing you in a video.
So check out the video below to see how to colour correct any redness or darkness under the eyes so you can get a nice even skin tone all day.
P.S. I have listed the products I used below the video for you.
Green Colour Corrector: NYX HD Colour Correcting Wand
Yellow Colour Corrector: Barry M Yellow Colour Correcting Wand
Brush: Zamira Stippling Brush
Give it a try <3
Much Love & Speak Soon