What to look for: Just like lavender shampoo prevents brassy hair, a lavender-tinted primer can work wonders on sallow skin. And don't worry about your face matching the shade of Katy Perry's hair. Lavender primer merely adds a "healthy hue" to your skin and cancels out any jaundiced tones, according to Quynh.

"A great brightening primer will have a lilac or pink tone to it to give you that extra color and add luminosity back to your skin," adds Scantlin.

Try:

Clinique Superprimer Face Primer - Colour Corrects Sallowness, $27. Different from other primers in that it has a more powdery finish, this lavender primer feels ultra-smooth upon application and creates a non-greasy, yet slippery, base for makeup to adhere to.

Tarte Clean Slate Flawless 12-hour Brightening Primer, $30. This radiance-boosting primer blends out to a soft, slightly shimmery pale pink shade that makes skin look amazing, even without foundation. To sweeten the deal, it's waterproof.

Dior Airflash CC Primer, $50. Oh-so-easy to apply, this brightening, smoothing, mist-on primer showers skin with a dose of refreshing minerals and plumping hyaluronic acid.