Korean Skincare Niacinamide

Niacinamide acts on several fronts simultaneously: it tightens pores, evens out skin tone, reduces hyperpigmentation, and strengthens the skin barrier. Unlike many active ingredients that target a single problem, it is suitable for almost all skin types. Visible results on skin tone generally appear after 4 weeks of daily use.

It is also one of the best-tolerated active ingredients: K-Beauty formulas with 5% and 10% niacinamide cause very few reactions, even on sensitive skin.

Yes, niacinamide can be used daily, morning and evening: it does not exfoliate and does not make the skin more sensitive to the sun. This is precisely what makes it an ideal foundational active ingredient in a routine. Start with once a day if your skin is reactive, then move to two applications after 2 weeks.

At 10%, some very sensitive skin may feel a slight warmth upon first contact: this is generally temporary. If the sensation persists, space out the applications.

On the face, niacinamide primarily acts on pore visibility, evening out skin tone, and reducing blemishes. It also stimulates ceramide production, which strengthens the hydrolipidic barrier. Oily skin also benefits from a sebum-regulating effect documented from 2%concentration.

For mature skin, studies show an improvement in radiance and texture after 8 weeksof regular use.

Niacinamide is compatible with almost all common active ingredients. Historical concerns about combining it with vitamin C (niacin formation) have been disproven under normal use conditions. However, avoid mixing it directly with highly concentrated acids (high-dose AHA/BHA) in the same application: alternating evenings remains more effective to preserve the optimal pH of each active ingredient.

There's no real danger, but a well-thought-out sequential routine maximizes results.

Niacinamide is generally considered compatible with pregnancy and breastfeeding. It is not among the ingredients that are discouraged (retinol, high-concentration acids, hydroquinone). That said, always consult your doctor or midwife before introducing a new skincare product during this period: every situation is different.

Check the INCI list of each product before using it: some formulas combine niacinamide with other active ingredients.

If you are not sure what is right for your skin at the moment, our free skin diagnosticis a good place to start.