If there's one ingredient that has earned near-universal praise in the skincare world, it's niacinamide. Also known as vitamin B3, niacinamide is a staple in Korean skincare for good reason — it's one of the most versatile, well-researched, and well-tolerated active ingredients available.
What Is Niacinamide?
Niacinamide is a form of vitamin B3 that works at the cellular level to improve multiple aspects of skin health simultaneously. Unlike many actives that target one specific concern, niacinamide is a true multitasker.
What Does Niacinamide Do?
- Brightens skin tone — inhibits melanin transfer to reduce dark spots, hyperpigmentation, and uneven tone
- Minimizes pores — regulates sebum production and tightens the appearance of enlarged pores
- Strengthens the skin barrier — boosts ceramide production to improve barrier function and reduce moisture loss
- Reduces redness — anti-inflammatory properties calm acne-related redness and general skin sensitivity
- Smooths texture — improves skin surface texture and reduces the appearance of fine lines
- Controls oil — regulates sebum without drying out the skin
Who Should Use Niacinamide?
Almost everyone can benefit from niacinamide. It's particularly effective for:
- Oily and acne-prone skin (sebum control + anti-inflammatory)
- Skin with hyperpigmentation or dark spots
- Sensitive skin (it's one of the gentlest actives available)
- Anyone looking to improve overall skin tone and texture
How to Use Niacinamide
Niacinamide is found in toners, serums, essences, and moisturizers. Apply it after cleansing and toning, before heavier creams. It plays well with most other actives — including hyaluronic acid, peptides, and SPF.
Note on mixing with vitamin C: The old advice to avoid using niacinamide with vitamin C is largely outdated. Modern formulations are stable and the combination is generally safe and effective.
What Concentration Should You Use?
Most studies show benefits at concentrations of 2–10%. Start at the lower end if you have sensitive skin. Concentrations above 10% can occasionally cause flushing in sensitive individuals.
Add It to Your Routine
Niacinamide is one of the easiest actives to incorporate — it's gentle, effective, and works morning or night. If you're only going to add one active ingredient to your K-beauty routine, make it this one.
Shop our Serums & Essences to find niacinamide-powered K-beauty products for your routine.