I saved concealer until after the eyes were done just in case any eyeshadows needed cleaning up. Under the eyes, I prefer to use a peach toned concealer to cancel out any darkness. For any redness, I like to use a concealer with the slightest greenish tint. It sounds strange, but it all works out to a flawless finish. This concealer palette by Sona Kashuk has both of those for precisely those reasons.