If there's one ingredient that has gone from formulator's secret to bathroom-shelf staple, it's niacinamide. It shows up in serums, moisturizers and sunscreens — and for good reason. Here's what it is, what it does and how to use it without overthinking it.
What is niacinamide?
Niacinamide is a water-soluble form of vitamin B3. It's stable, gentle and plays well with most other ingredients, which is why it suits most skin types — oily, dry, combination and many sensitive skins.
What does niacinamide do for skin?
- Refines the look of pores. Skin looks smoother and more even in texture.
- Evens the appearance of skin tone. Helps the complexion look more uniform over time.
- Helps skin look less shiny. A favorite for anyone whose T-zone looks oily by midday.
- Supports a comfortable-feeling skin barrier. Skin feels balanced rather than tight.
Why 10%?
You'll see niacinamide anywhere from 2% to 20%. Ten percent is one of the most widely used strengths in serums: concentrated enough to be the star of the formula, but still comfortable for most people. If your skin is sensitive, start once a day and build up to twice.
How to use a niacinamide serum
- Cleanse.
- Apply 2–3 drops of niacinamide serum to face and neck.
- Moisturize — a light gel-cream like our Hydro Balancing Gel-Cream works well on top.
- SPF in the morning.
Use it morning, night or both. Like any active, results come from consistency — give it four to eight weeks.
Can you mix niacinamide with other ingredients?
- Hyaluronic acid: yes — a classic pairing for hydration.
- Peptides: yes — use the serum first, then your peptide cream.
- Retinol: generally yes; many people use niacinamide in the morning and retinol at night.
- Vitamin C: the old "don't mix" rule is largely outdated, but if your skin feels irritated, use one in the morning and one at night.
FAQ
Is niacinamide good for oily skin?
It's one of the best-loved ingredients for oily and combination skin because it helps skin look less shiny and pores look more refined.
Can niacinamide cause irritation?
Most people tolerate it well. If you notice redness or tingling, reduce to once a day and always patch-test new products.
Should I use it in the morning or at night?
Either works. Morning use under SPF is popular because it helps skin look less shiny through the day.
Try our 10% Niacinamide Serum: fragrance-free, 1 fl oz, made in the USA — with hyaluronic acid, chamomile and allantoin for a comfortable feel.