Were always happy to geek out over a buzzyskin careingredient when we see it making the rounds on product labels. (See: lactic acid, rosehip oil, bakuchiol) So when we started noticing the proliferation of niacinamide, we were surprised to learn that not only has it been around for a while buttheres a decent body of research behind the multipurpose vitamin. Heres what you need to know about niacinamidesbenefits for your skin.

Niacinamide, a form of vitamin B3 also known as nicotinamide, is a water-soluble vitamin that has potent antioxidant activity and reduces inflammation, saysboard-certified dermatologistDavid Lortscher, CEO of Curology.

It would be an exaggeration to call niacinamide a cure-all, but it does have a pretty extensive range when it comes to the conditions it can treat: acne, oil regulation, fine lines and wrinkles, hyperpigmentation, enlarged pores and sun damage. Its especially good at repairing skins moisture barrier (aka its first line of defense) and protecting against environmental stressorsits even been shown to help prevent skin cancer in certain studies.

Niacinamides nourish and calm redness and inflammation,says DendyEngelman, a board-certified dermatologist in New York. She particularly likes niacinamide for dry and sensitive skin: It has similar effects to retinol by strengthening the skin barrier, but itfortifies from the get-go without sensitivity or irritation.Dr. Lortscher also has high praise: Because of its role in repairing the skin barrier, niacinamide is one of the most effective treatments for photoaging [damage caused by UV rays], according to most anti-aging research.

It starts to get technical here, but as Dr. Engelman explains it, Niacinamide helps support the cellsmetabolic system, specifically fibroblasts. We use fibroblasts tomake and repair DNA,which,in turn, activates collagen production. So by using niacinamides to boost fibroblast production, we are supporting collagen production and repairing damaged collagen.

Lots of products contain niacinamideserums, moisturizers, even cleansersand it works well in conjunction with other active ingredients, like retinol. It can be used both morning and night, though as with any goodskin careregimen, you should follow it up with a sunscreen during the day.

Niacinamide should be compatible with most otherskin careproducts and is well tolerated by all skin types,including sensitiveskin, Dr. Lortscher says. For best results, use leave-on products with niacinamide. Its safe to use around the eyes, anditmay improve the appearance of under-eye darkness and wrinkles.

Convinced yet? Check out a few of our favorite products containing the powerhouse ingredient below.

RELATED: We Ask a Derm: What Ingredients Should You Avoid If You Have Oily Skin?

Of course, the uber-popular, wallet-friendly brand is on top of it. This serum is especially helpful for congested, acne-prone skin: The niacinamides anti-inflammatory propertiescalm active breakouts, while its oil-regulating properties (and the addition of zinc, which also keeps oil in check) help keep new ones from forming.

Buy it ($6)

Nia 24 uses a patented form of niacinamide thats designed to absorb better into skin (and therefore work its magic more effectively). This rich cream strengthens the skin barrier with its namesake ingredient, plus hyaluronic acid, licorice root extract, peptides and ceramides.

Buy it ($118)

Give parched, dull skin a quick pick-me-up with a five-star-rated gel sheet mask. Reviewers rave about its glow-inducing, hydrating properties and the fact that its gentle enough for sensitive skin.

Buy it ($3)

Cursed by the ghosts of pimples past? Niacinamide, glycolic acid and NASA-developed plant stem cells (!) work together to combat hyperpigmentation and scarring.

$20 on Amazon

Derms, dry-skinned gals and makeup lovers alike know oil cleansers are a godsend forwashing off the days makeup withoutstripping any precious natural moisture. This cleanser amps up the effects with niacinamides barrier-strengthening effects, plus offers a gentle exfoliation thanks to fruit enzyme.

Buy it ($42)

SkinCeuticals serums are cult faves for a reason, and this 5 percent niacinamide serum is no exception. Its amped up with amino acids, algae extract and peptides to target the effects of environmental stress and promote collagen production.

Buy it ($112)

RELATED: The Best Face Moisturizer for Dry, Sensitive Skin, According to People Who Use Them

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Heres How Niacinamide Benefits Your Complexion (and How to Work It into Your Skin Care Routine) - Yahoo Lifestyle