Ingredient Encyclopedia · N
INCI: Niacinamide
Niacinamide (vitamin B3) is the all-around workhorse of skincare: It refines pores, regulates sebum, reduces redness, and strengthens the skin barrier—for nearly every skin type. Few active ingredients are as versatile and, at the same time, as well-tolerated.
What is niacinamide?
Niacinamide is the amide form of vitamin B3—water-soluble, stable, and resistant to light and air. This makes it one of the most straightforward active ingredients around: no special storage conditions, no acclimation period, and it can be combined with almost anything. In serums, it's usually found in concentrations of 5–10%, often supplemented with zinc to combat shiny skin.
Effects: What's Backed by Evidence
Five out of five bars: Niacinamide is one of the most thoroughly researched active ingredients in cosmetics. Research confirms that it strengthens the skin barrier, regulates sebum production, reduces redness, and promotes a more even complexion after about 4–8 weeks. The effect on pore size is visible but limited—pores can be refined, not made to disappear.
Application & Combination
Apply morning and evening after cleansing, before your moisturizer. Niacinamide is the team player among active ingredients: it soothes the skin during the retinol acclimation period and complements vitamin C in the morning.
Pairs well with
✓ Vitamin C — contrary to the myth, a powerful duo
✓ Retinol — soothes the skin during the adjustment period
✓ Hyaluronic acid — hydration plus barrier reinforcement
Note
! Concentrations above 10% offer little additional benefit but increase the risk of redness
Niacinamide in the BONSANA Line
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The All-Around Solution for Your Routine
Niacinamide serums and masks for pores, sebum, and complexion—ready to ship from our Swiss warehouse.
Discover facial serums →Frequently Asked Questions About Niacinamide
What skin types is niacinamide suitable for?
Almost any skin type: oily skin benefits from sebum regulation, sensitive skin from barrier reinforcement, and dull skin from a more even complexion. That's why it's known as an all-rounder.
Can I combine niacinamide with vitamin C?
Yes. The supposed conflict stems from old lab tests using unstable formulas. In modern products, the two complement each other—even when applied right after one another.
How soon will I see results?
Improvements in the skin barrier and sebum regulation often become noticeable after just a few weeks, while a more even complexion usually appears after 4–8 weeks of consistent use.
5% or 10%—which concentration should I choose?
5% is sufficient for most goals. 10% is worth considering for stubborn oiliness and enlarged pores—concentrations higher than 10% offer little additional benefit but increase the risk of redness.
