Why We Love It: This vitamin C serum did more than brighten skin—it ... looking dropper because the slim nozzle made it easy to target areas with discoloration and avoid a messy application.

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.

This powerful and high-quality vitamin C serum was specifically formulated to target dark spots, signs of aging and more, leaving skin smooth and soft. Glycolic acid, a BHA, provides chemical ...

Despite its efficacy, vitamin C is notoriously unstable and can quickly go from a hyperpigmentation-zapping wonder ingredient to a $60 bottle of smelly serum. That’s why it’s important to find ...