The three Cover All Mix shades as separate concealer pens. A high-pigmented multi-purpose concealer to cover imperfections and neutralize discolorations. Blend the shades to get a customized result to match your skintone or use individually.. The yellow shade neutralizes red areas such as spots and blood vessels. The red shade neutralizes blue areas such as dark circles under the eyes. The beige shade can be used to lighten up your skin and the other shades in the palette.