Or are the two formulas more like frenemiesseemingly tolerable but way too competitive to ever have a meaningful relationship?

Ahead, experts weigh in.

Vitamin C

First, let’s review some of the benefits of each buzzy ingredient.

Jamie Schneider

We’ll start with vitamin C:

Seeherefor our full list of benefits.

Can you use them together?

As you likely noticed above, niacinamide actually carries similar benefits to vitamin C, anyway.

Keira Barr, M.D.

Since vitamin C is notoriously unstable, you always want to apply it on clean, dry skin.

Then “Let vitamin C completely dry prior to placing niacinamide,” says Lamm.

The skin should appear dry before applying the next product," she once told us aboutlayering serums.

Find a product with both ingredients.

Use niacinamide in your moisturizer.

“One of niacinamide’s greatest strengths is that it can play nice with everyone.

Layer them correctly, though, and you may even punch up their purported benefits.