NiacinamideBenefits, how to use & safety
The brightener that doesn't negotiate.
What is Niacinamide?
Niacinamide is the active form of vitamin B3 and one of the most widely studied multitaskers in skincare. It is water-soluble, stable in light and air, and gentle enough for daily use, which is why it appears in everything from lightweight serums to sunscreens and moisturisers.
How it works
In skin, niacinamide supports the production of ceramides and other barrier lipids, which helps skin hold water and resist irritation. It also reduces the transfer of melanin from pigment-producing cells to surrounding skin cells, so existing dark marks look softer over time, and it helps regulate sebum, which is why pores can look tighter.
Key benefits
- Fades the look of dark spots and uneven tone
- Balances oil and refines the look of pores
- Strengthens the skin barrier and reduces water loss
- Calms redness and supports acne-prone skin
- Dark spots
- Large pores
- Oily skin
Best suited for: All skin types, including oily, combination, acne-prone and sensitive skin. A particularly good first active for beginners.
How to use it
Use a 2–5% niacinamide serum or moisturiser once or twice daily, after cleansing and before moisturiser. Start once a day if your skin is sensitive. Always follow with sunscreen in the morning, since brightening works best when new pigment is not being triggered by UV. Visible results typically take 8–12 weeks of consistent use.
Pairs well & what to avoid
- Hyaluronic acid for hydration
- Zinc PCA for oil control
- Ceramides and peptides for barrier support
- Very high strengths (10%) on sensitive skin, which can cause flushing or tingling
- Layering several strong acids in the same step if your skin is easily irritated
Safety & side effects
Niacinamide is among the best-tolerated actives. Mild flushing, tingling or purging-like breakouts can happen at high strengths or when stacked with many other actives. It is widely considered suitable during pregnancy, but check with your doctor if you are pregnant or breastfeeding. Patch test any new product.
Frequently asked
Can I use niacinamide and vitamin C together?
Yes. The old warning that they cancel each other out is based on outdated high-heat lab conditions. Most people layer them without any problem. If your skin tingles, use vitamin C in the morning and niacinamide at night.
What percentage of niacinamide is best?
Most clinical benefits are seen between 2% and 5%. Going to 10% rarely adds results but raises the chance of irritation, so higher is not automatically better.
Does niacinamide cause purging?
It does not speed up cell turnover, so true purging is uncommon. Breakouts after starting it usually point to another ingredient in the formula or too many new products at once.
Educational content only, not medical advice. Individual skin responds differently. Patch-test new actives, introduce one at a time, and consult a dermatologist for persistent skin concerns, pregnancy or breastfeeding questions, or any prescription treatment.
