Niacinamide (Vitamin B3)

INCI: Niacinamide

brightening

Niacinamide is a water-soluble form of Vitamin B3 that brightens skin, minimizes pores, reduces redness, and strengthens the skin barrier. It is one of the most well-researched ingredients in Korean skincare.

Key Benefits

  • Brightens skin tone and fades dark spots by inhibiting melanosome transfer
  • Minimizes the appearance of enlarged pores
  • Reduces redness and blotchiness
  • Strengthens the skin barrier by boosting ceramide production
  • Regulates sebum production — effective for oily and acne-prone skin
  • Reduces fine lines with long-term use

Potential Side Effects

  • May cause flushing or tingling at concentrations above 10% in sensitive skin
  • Rarely causes contact dermatitis
  • Can interact with Vitamin C (ascorbic acid) to form nicotinic acid — use at different times of day

Frequently Asked Questions

What percentage of niacinamide is most effective?

Studies show 5% niacinamide is effective for most skin concerns. 10% targets hyperpigmentation more aggressively. Start at 5% if you have sensitive skin.

Can I use niacinamide with retinol?

Yes. Niacinamide and retinol work well together. Niacinamide helps buffer retinol irritation while boosting barrier function.

Can niacinamide be used with hyaluronic acid?

Absolutely. Layer hyaluronic acid first on damp skin, then apply niacinamide serum. They complement each other for hydration and barrier repair.

How long does niacinamide take to work?

Most users see improvements in skin tone and pore appearance within 4–8 weeks of consistent daily use.

Is niacinamide safe for pregnancy?

Yes. Niacinamide is considered safe during pregnancy, unlike retinoids. It is a popular pregnancy-safe alternative for brightening and anti-aging.