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.

With over 97,000 five-star reviews, people say this skin-brightening serum performs just as well as more expensive versions.

The Eva Naturals Vitamin C Serum is made primarily of vitamins C, E and B3, along with retinol, salicylic and hyaluronic ...

Learn more! Whether you’re battling redness-prone skin, sun spots or discoloration, there’s likely one simple ingredient missing from your skincare lineup: a vitamin C serum. The potent ...

The 'RHONY' star's favorite glow-boosting pick is 'hydrating, plumping, brightening' — and it's on super sale.