Concealer is best applied after foundation as this allows the foundation to cover most of the imperfections so that just a little concealer is then needed for extra coverage. The only exception is colour-correcting concealers which are best applied before your foundation. Apply using the supplied applicator or a small brush, then gently ‘dab’ it into the skin without ‘rubbing’. When using a concealer around the eye area, apply only to the dark area of the eye contour. In the case of puffiness, avoid very light shades as these accentuate the problem by bringing the feature ‘forward’.