Niacinamide is a form of vitamin B3 used in skincare to support the skin barrier, help skin look more even, and help manage the appearance of shine and visible pores. It is popular because it is relatively stable, works in many formulas, and is generally well tolerated, which makes it one of the easier "extra" ingredients to add to a routine.
It is not a miracle ingredient, though, and its effects build gradually. Knowing what to expect makes it far more satisfying to use.
What is niacinamide?
Niacinamide, sometimes called nicotinamide, is one of the forms of vitamin B3. In the body it is involved in many cellular processes. Applied to skin, it has been studied for several cosmetic effects. A frequently cited clinical study found improvements in fine lines, uneven tone, redness and texture with topical niacinamide compared with a placebo (Bissett and colleagues, 2005).
What does niacinamide generally do?
| Area | What research and use suggest |
|---|---|
| Skin barrier | May help the barrier hold moisture and feel more resilient |
| Uneven-looking tone | May help dark marks look less prominent over time |
| Oil and pores | Often used for a more balanced, less shiny look |
| Texture | May help skin look smoother with regular use |
These are general findings. The results you get depend on the product, its concentration and your skin.
Why is niacinamide so popular?
There are practical reasons beyond the research. Niacinamide is stable, so it does not degrade as quickly as some antioxidants. It works across a range of pH levels, so it fits into many types of product. And it tends to sit comfortably alongside other ingredients, including hyaluronic acid, most moisturisers and sunscreen.
What strength should you choose?
Higher is not automatically better. Moderate concentrations are commonly used in everyday products, and very high percentages can cause flushing, redness or a gritty feeling for some people. If you are new to niacinamide, a moderate-strength product used consistently is usually a better starting point than chasing the highest number.
How do you use niacinamide?
- Cleanse.
- Apply niacinamide (often a serum) to dry or slightly damp skin.
- Follow with moisturiser.
- In the morning, finish with sunscreen.
Many niacinamide products can be used morning and evening. Always follow the specific product's directions.
Can niacinamide be combined with other ingredients?
Hyaluronic acid: a common, comfortable pairing for hydration and barrier support.
Vitamin C: an old myth suggested they cancel each other out. That idea was based on conditions very different from normal skincare use, and many people now combine them comfortably.
Retinoids: niacinamide is often used alongside retinoids, sometimes to help skin feel more comfortable.
Exfoliating acids: generally fine, but introduce new combinations one at a time.
What are the common misconceptions?
"Niacinamide cures acne." It is often included in routines for blemish-prone skin, but it is not an acne treatment.
"The highest percentage works best." Higher strengths can increase irritation without guaranteed extra benefit.
"You will see results in days." Studies usually measure changes over several weeks.
"It replaces moisturiser." Most niacinamide serums are not designed to replace a moisturiser.
Who might benefit from niacinamide?
Combination and oily skin often like its balancing reputation. Dry skin appreciates its barrier support. People with uneven-looking tone sometimes use it alongside sunscreen. Very sensitive skin can still try it, ideally at a moderate strength and introduced slowly.
How do you read a niacinamide label?
Niacinamide appears on ingredient lists as "niacinamide" (sometimes "nicotinamide"). Where it sits in the list gives a rough clue to how much is present: ingredients are usually listed in descending order of concentration, at least down to about one per cent. Some brands state the percentage on the front of the pack. When comparing products, also look at what else the formula contains. Niacinamide is often paired with hydrating ingredients, zinc compounds or barrier-supporting lipids, and those partners shape how the product feels.
What does a sample routine look like?
Morning: gentle cleanser, niacinamide serum, moisturiser, sunscreen.
Evening: cleanser, niacinamide serum (if the product is designed for twice-daily use), moisturiser.
If you also use vitamin C, many people apply vitamin C in the morning and niacinamide in the evening simply to keep routines short, although both can usually be used together. Give any new routine at least four to six weeks before judging it, and take photos in consistent light to compare.
What side effects can occur?
Niacinamide is generally well tolerated, but redness, flushing, itching or a tingling sensation can happen, especially at higher concentrations. Patch test first and stop using it if irritation persists.
Frequently asked questions
Can I use niacinamide every day?
Many niacinamide products are designed for daily use. Follow the product's directions.
Is niacinamide good for oily skin?
It is often chosen for a more balanced, less shiny appearance. Results vary.
Does niacinamide lighten skin?
It may help dark marks look less noticeable over time. It does not change natural skin tone.
Can I use niacinamide with vitamin C?
Most people can. Introduce them one at a time.
How long does niacinamide take to show results?
Research typically measures changes over several weeks of regular use.
In short
Niacinamide is a versatile, generally well-tolerated ingredient that supports the skin barrier and may help skin look smoother and more even with consistent use. Choose a moderate strength, pair it with moisturiser and sunscreen, and give it time.
Our Niacinamide product page will publish its strength and directions before it goes on sale. It may pair well with Hyaluronic Acid and our Moisturizer.
Sources
- Bissett DL, et al. Niacinamide: a B vitamin that improves aging facial skin appearance. *Dermatol Surg*. 2005.
