Niacinamide

By Nur → Last verified 9/26/2026

What it is

Niacinamide is a form of vitamin B3, one of the most studied ingredients in cosmetic dermatology, used across Korean skincare in concentrations ranging from a gentle 2% in daily formulas up to a clinically-concentrated 10% in targeted treatments.

What the evidence says

Niacinamide strengthens the skin barrier by boosting ceramide production, helps even out tone by limiting pigment transfer to skin cells, and can reduce the look of enlarged pores. Unlike newer trend ingredients like PDRN, niacinamide's benefits are backed by a long, independent research record, not just brand-sponsored studies. Concentration matters: Beauty of Joseon's Glow Serum uses a gentle 2% for general daily use, while Anua's Niacinamide 10% + TXA 4% Serum uses a clinically-concentrated 10% specifically for stubborn pigmentation, a meaningfully different product despite sharing the same active.

Who it's for

Nearly everyone. Niacinamide is one of the more broadly tolerated actives across skin types, used in gentle daily formulas and targeted treatments alike.

Worth knowing

No specific skin type needs to avoid niacinamide, but the concentration should match the goal, a gentle 2% for general daily use isn't the same product as a targeted 10% formula for stubborn dark spots.

Where you'll find it

Products in our catalog that list Niacinamide as a key ingredient.

Frequently asked

What does niacinamide do for skin?

It strengthens the skin barrier by boosting ceramide production, helps even out tone by limiting pigment transfer to skin cells, and can reduce the look of enlarged pores.

What's a good niacinamide concentration?

It depends on the goal. Gentle daily formulas often use around 2%, like Beauty of Joseon's Glow Serum. Targeted treatments for stubborn pigmentation use higher concentrations, like Anua's 10% niacinamide plus TXA serum.

Is niacinamide backed by real research?

Yes, unlike newer trend ingredients such as PDRN, niacinamide has a long, independent research record behind its barrier and tone-evening effects.

Can I use niacinamide every day?

Generally yes, it's one of the more broadly tolerated actives across skin types, which is why it appears in both gentle daily formulas and more targeted treatments.