How to apply concealer correctly! If you are not sure what type of concealer to buy head to a make-up counter for help! They will be able to match you perfectly! You want to make sure that you purchase a concealer that isn’t too thick (this makes it easier to apply).When applying make sure to build the concealer on inlayers and if it is a liquid pat the concealer on don’t rub! layers & if it liquid pat the concealer, don’t rub.