Double End Perfection Brush For Face , Concealer Brush: Dab the brush with a small amount of concealer. Pat over area you wish to cover blending edges as you go. Use to hide skin imperfections and conceal under eyes. , Foundation Brush: Depending on your type of foundation, apply directly to skin or back of hand first. Brush and pat in short downward and outward strokes across entire face, blending as you go.