Key takeaways
- Niacinamide is vitamin B3 — gentle, versatile and suitable for most skin types.
- It helps with the look of shine, pores, uneven tone and a weak barrier.
- Around 2–5% suits most people; higher isn't automatically better.
- It pairs well with almost everything, including sunscreen and vitamin C.
Niacinamide is a form of vitamin B3, and it turns up in everything from toners to sunscreens. It's one of the ingredients we recommend most at the stall, because it's well-tolerated by most skin types and does several useful things at once — particularly for oily, uneven skin in a hot climate.
What niacinamide is commonly used for
- Shine control. Many people find it helps regulate the look of oiliness over a few weeks.
- Uneven tone. It's widely used for dullness and post-acne marks, often alongside vitamin C or licorice.
- The skin barrier. It supports the skin's own ceramides, which matters if you're prone to dryness or irritation.
- Pores. Over time, pores can look less noticeable — especially on oily skin.
- Redness. It's generally calming, which is why you'll find it in so many sensitive-skin products.
Which strength should you choose?
Niacinamide products range from around 2% to 10% or more. Research and experience suggest moderate concentrations — roughly 2–5% — are enough for most people. Higher percentages aren't automatically more effective, and in some people they can cause redness, flushing or a tingling feeling.
| Strength | Who it suits |
|---|---|
| 2–5% | Most people, including sensitive skin. A great starting point. |
| 5–10% | Oily skin that tolerates actives well and wants more shine control. |
| 10%+ | Not necessary for most. Try only if lower strengths have worked well. |
How to use niacinamide
- 1
After toner
Apply a few drops of serum to clean skin, after toner or essence.
- 2
Before moisturiser
Let it absorb for a moment, then seal with your moisturiser.
- 3
Once or twice a day
It works morning or night — and pairs beautifully with sunscreen in the morning.
What to pair it with — and myths to ignore
- Hydrators like hyaluronic acid — a great combination for dehydrated, oily skin.
- Sunscreen — essential if you're using niacinamide for dark spots.
- Vitamin C — older advice said not to combine them, but modern formulas generally work fine together. If the combination irritates you, use vitamin C in the morning and niacinamide at night.
- Retinoids — niacinamide's barrier support can make retinoids feel more comfortable.
How long until you see results?
Give niacinamide four to eight weeks of daily use. Shine control often shows first; changes in tone and marks take longer. Take a photo in the same light on day one so you can compare honestly.
Is niacinamide right for you?
If you have oily skin, post-acne marks or a slightly reactive barrier, niacinamide is one of the easiest actives to start with. If your skin is very sensitive, begin with a low strength every other day. And as always, if you're unsure, ask us at the stall — we'll help you find a texture and strength that suit you.
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This guide is general information, not medical advice. Patch-test new products, and see a doctor or dermatologist about persistent skin problems.
