Smashbox's luminous lotion diffuses light to soften lines-meaning you can use less foundation. (Smashbox Photo Finish Luminizing Foundation Primer, $63 for 1 oz.; amazon.com)
Similarly, this cover-up reflects light particles, diverting attention from dark circles. (Boots No. 7 Radiant Glow Concealer, $12.99 for .1 oz.; amazon.com)