What Does Niacinamide Do? 7 Benefits, Tips From Top Derms & Our Favorite Products

Niacinamide is one of those ingredients that has been used forever but has gotten much more notoriety in recent years. Given the loads of clinical research demonstrating its effectiveness for skin brightening, hydration, and even healthy skin aging, it's really no surprise.

Niacinamide is a powerful form of vitamin B. "This powerhouse ingredient contributes to the support of the skin against pollutants and other irritants," board-certified dermatologist and creator of clean skin care brand Goldfaden M.D. Gary Goldfaden, M.D., FAAD, tells mbg.

Here's how it works: "Niacinamide Increases production of ceramides and fatty acids, two key components of the skin's outer protective barrier," Goldfaden explains.

In skin care formulas, you can find niacinamide in two forms: nicotinic acid (also known as niacin) and nicotinamide (also called niacinamide), Goldfaden says.

The latter, niacinamide, is an essential element in the creation of two important enzymes called NADH and NADPH, both of which play a central role in cellular energy production and the formation of skin lipids, he adds.

As Goldfaden mentioned above, niacinamide increases the production of ceramides and fatty acids in the skin. These two are incredibly significant players in overall skin hydration.

In one study, 2% topical niacinamide was shown to reduce sebum production1—one factor that contributes to clogged pores and breakouts.

What's more, one study showed that applying a topical formula of 4% niacinamide treated moderate acne just as well as 1% of the topical antibiotic clindamycin. While niacinamide alone likely won't reduce chronic breakouts (like cystic acne, for example), it is an excellent addition to any routine for acne-prone skin.

Goldfaden notes that niacinamide (and nicotinamide) also has anti-inflammatory properties. This is why niacinamide is a great option for inflammatory skin conditions such as eczema and breakouts.

Goldfaden notes that niacinamide can be particularly effective for maintaining a healthy skin barrier. As this comprehensive study2 states, "Increasing barrier function may result in less irritation when the skin encounters environmental insults," which can lead to a decrease in redness.

While vitamin C may be the buzziest antioxidant, it's certainly not the only one. Niacinamide may not be known for being a powerful antioxidant, but studies show it can increase the production of NADP3, which does have essential antioxidant properties.

King notes that niacinamide can also help with hyperpigmentation. As this study demonstrates, niacinamide inhibits melanosome transfer4, resulting in brighter skin and reduced appearance of dark spots after four weeks of consistent use.

Hyperpigmentation can be difficult to treat, especially for those with sensitive skin who can't tolerate potent retinoids or skin-brightening agents. Plus, those with melanin-rich skin may experience irritation and increased hyperpigmentation from strong exfoliants—which is why niacinamide is a common ingredient in skin care products formulated for melanin-rich skin.

In one 2021 review6 of this powerhouse ingredient, research showed an improvement in skin texture and ease in the appearance of fine lines. This is important to note as classic exfoliants like AHAs, BHAs, and retinol can significantly improve texture and contribute to healthy skin aging, but they shouldn't be used every day.

However, niacinamide can be. So, if you're prone to consistent texture on the skin, consider adding a niacinamide serum to your routine—don't worry, our top-pick products are listed below.

Another lovely thing about niacinamide is that it's already found in so many products. You can opt for a face cream, serum, or hydrating essence. The important thing is to know how much niacinamide you're getting in these products.

As with many skin care products, more does not always mean better—and niacinamide is one perfect example of this. "Niacinamide topically can cause stinging, burning, or flushing to the skin in some patients," board-certified dermatologist Caren Campbell, M.D., previously told mbg. "Because it speeds skin cell turnover, some might experience peeling or flaking," she added.

So stick with a 2% to 4% niacinamide product, or use it every other day if you're opting for a more potent formula. As for general face creams containing niacinamide, you likely won't get more than 2% in those multi-ingredient formulas.

Niacinamide is also a safe ingredient to mix with other actives such as AHAs, BHAs, retinol, and even vitamin C. Translation: You can use your niacinamide serum in the mornings and evenings. Plus, with the ability to manage sebum production while providing hydration, niacinamide can be a year-round skin care staple. 

As you can see, niacinamide is a winner when it comes to all kinds of skin concerns, whether it be brightening your complexion, managing oil production, or easing fine lines. Stick with 2% niacinamide, as higher potency products can be irritating on the skin. Ready to add a niacinamide serum to your routine? Here's a curated list of our 12 favorite picks to get you started.