Kiehl's Clearly Corrective Dark Spot Correcting Serum Shah also likes the vitamin C and salicylic acid combo found in this Kiehl’s formula, which specifically aims to target dark spots ...

For a vitamin C serum to be effective, dermatologists say there are a few key things to consider: Want more from NBC Select? Sign up for our newsletter, The Selection, and shop smarter.

When it comes to achieving bright, glowing skin, a vitamin C serum is key. But not all vitamin C serums are created equal—and in fact, there’s a wide range of potencies available with ...

From now until January 17, you can score 50% off top skincare brands like Origins, Kiehl’s ... This serum is designed to give you an instant glow and a hefty dose of vitamin C.