Niacinamide (vitamin B3) is one of the most versatile and well-tolerated ingredients in skincare. It calms redness, helps regulate oil, strengthens the barrier, and fades post-blemish marks — all while being gentle enough for almost every skin type.
What niacinamide does
- Controls oil and pores: helps regulate sebum, so it's a favourite for oily and combination skin.
- Calms and repairs: supports the skin barrier and reduces redness and irritation.
- Brightens: fades dark marks left by old breakouts and evens tone over time.
The vitamin C myth
You may have heard niacinamide and vitamin C "cancel each other out." That myth comes from decades-old lab conditions that don't reflect modern formulas. In practice they work together fine — many products even combine them. If your skin is very sensitive, simply use vitamin C in the morning and niacinamide at night.
How to use it
A niacinamide serum around 4–5% is effective and gentle; higher percentages aren't necessarily better and can cause flushing in some people. Use it once or twice daily, after watery steps and before moisturiser. It layers well with almost everything.
Who it's for
Nearly everyone — but it's especially useful for oily, blemish-prone, redness-prone, and sensitised skin. Because it's so gentle, it's a good "first active" for beginners.
FAQ
Can I use niacinamide with vitamin C?
Yes. The idea that they cancel out is a myth from old lab conditions. Modern formulas work together well; if sensitive, use vitamin C in the morning and niacinamide at night.
What percentage of niacinamide is best?
Around 4–5% is effective and gentle. Higher concentrations aren't necessarily better and can cause flushing in some people.
What does niacinamide do for skin?
It helps control oil, calms redness, strengthens the skin barrier, and fades post-blemish marks — a versatile, well-tolerated all-rounder.
Is niacinamide good for oily skin?
Yes, it's one of the best-tolerated actives for oily and blemish-prone skin because it helps regulate sebum and refine the look of pores.