TULA Illuminating Face Serum ($78; tula.com) is a lightweight serum that helps brighten, fade dark spots and add a youthful glow to skin.Its a beautiful, lightweight serum that is now part of my skincare routine and one I’d recommend if you have dull dry skin and need some evening out without the added dryness from brightening products. Its quite gentle on the skin and feels super lightweight and sinks in super quickly. I love the sturdy, glass packaging and how nicely this layers beneath creams, foundations and lightweight bases. I use it both day and night, switching it with a few other skincare products. It does have a very slight fragrance, but not bothersome at all. Overall, a great lightweight, brightening serum for mature, dry or tired looking skin.