If you have spent any time reading about skincare over the past few years, you will have come across niacinamide. It appears in serum recommendations, ingredient breakdowns, and beginner guides across practically every skincare platform. There is a reason for that. The research behind it is solid, the formulation options are plentiful, and the price points vary enough to suit most budgets.
What Is Niacinamide and What Does It Do?
Niacinamide is a form of vitamin B3. Unlike exfoliating acids or retinol, it is relatively gentle and works with the skin rather than against it. When applied topically, it supports the skin barrier, helps regulate oil production, reduces the appearance of pores, and can fade uneven skin tone over time. It is one of the few ingredients that genuinely does multiple things without requiring a prescription.
What makes it particularly useful is that it suits a wide range of skin types. Oily and blemish-prone skin benefits from the oil-control properties. Dry and sensitive skin benefits from the barrier support. Even skin showing signs of ageing can benefit from the way niacinamide helps reduce water loss and maintain hydration in the outer layers of the skin.
Who Should Use Niacinamide?
Niacinamide is a good fit for most people. If you are dealing with any of the following, it is worth incorporating into your routine:
Enlarged or visible pores. Niacinamide helps regulate the amount of oil produced by the skin, which over time reduces the appearance of enlarged pores. This is one of the most commonly cited reasons people add it to their routine.
Excess oil and shine. If your skin looks greasy by mid-morning despite using skincare products, niacinamide can help reduce surface oil production. This does not mean your skin becomes dry. It means the skin produces less oil overall.
Post-blemish marks and uneven tone. Niacinamide can help fade the marks left behind after breakouts clear. It interrupts the process that leads to uneven pigmentation, which means regular use can result in more even skin tone over eight to twelve weeks.
Sensitive or compromised skin. Niacinamide supports the skin barrier, which is the outer layer that keeps moisture in and irritants out. A stronger barrier means less reactivity and fewer occasions where your skin reacts to products or environmental triggers.
The Best Niacinamide Products Available in the UK
Here is what is worth your attention. I have looked at formulation, concentration, price, and how these products are received by people who have used them.
The Ordinary Niacinamide 10% + Zinc 1%
From around 4.50 on Amazon UK
The product that introduced most people to niacinamide in the UK. Ten percent niacinamide with one percent zinc PCA. The zinc adds oil-control benefits on top of what niacinamide already does, making this a strong option for anyone dealing with excess shine or blemish-prone skin.
The formula is water-based and lightweight. It absorbs quickly and does not leave a sticky residue. Available on Amazon UK for a price that makes it easy to try without much financial risk. If you are starting out, this is the obvious first choice.
The Inkey List 10% Niacinamide Serum
From around 9.99 on Amazon UK
The Inkey List takes a different approach. Their niacinamide serum includes one percent hyaluronic acid alongside the ten percent niacinamide. This means you get the oil-control and pore-minimising benefits alongside hydration, rather than one or the other.
For people whose skin is dry or combination but still experiences excess oil in the T-zone, this dual approach can be useful. You get the niacinamide benefits without the tradeoff of potentially drying out the rest of your face. It is fragrance-free, which matters for reactive skin types.
CeraVe Resurfacing Retinol Serum
From around 17.61 on Amazon UK
CeraVe takes a different angle. Rather than a straight niacinamide serum, their Resurfacing Serum combines retinol with ceramides and niacinamide. This means you get the cell turnover benefits of retinol alongside the barrier support and oil control of niacinamide, all in one product.
The addition of ceramides is significant. Ceramides are naturally occurring lipids in the skin barrier. Adding them alongside retinol means the formula is designed to reduce the irritation that sometimes comes with retinol use. If you want to introduce retinol but have found it too irritating in the past, this could be the version that works for you.
How to Use Niacinamide in Your Routine
Niacinamide is straightforward to fit into most routines. Apply it after cleansing and any water-based toners, before heavier serums or moisturisers. It works in both the morning and the evening, though many people use it twice daily to maintain consistent results.
It can be layered with most other ingredients. The one exception is high-concentration vitamin C, where the combination can cause flushing or irritation in some people. If you want to use both, apply them at different times of day. Niacinamide in the morning, vitamin C in the evening, or alternate days.
Do not use it alongside AHAs or BHAs on the same evening if you have sensitive skin. The combination of exfoliating acid and niacinamide can be too much for some skin types. Start with niacinamide alone and introduce acids gradually once you know how your skin responds.
What to Expect Over Time
Niacinamide does not produce dramatic overnight results. It works gradually by supporting the skin over time. Most people start to notice reduced shine and smaller-looking pores within two to four weeks of consistent use. Fading of post-blemish marks and more even skin tone takes longer, typically eight to twelve weeks of regular application.
If you are using it for oil control, the effect is usually apparent sooner. You may notice your skin feels less greasy by mid-morning after a week or two of consistent use. If you are using it for barrier support or sensitivity, the reduction in reactivity tends to build over four to six weeks.
If you see no improvement after eight weeks, the product may not be the right fit for your specific concern. Niacinamide works well for most people, but not every concern responds to it. If that is the case, look at other active ingredients rather than increasing concentration.
The Bottom Line
Niacinamide is one of the easiest active ingredients to introduce to a skincare routine. It is well tolerated by most skin types, available across a wide price range, and backed by decent research. Starting with The Ordinary Niacinamide 10% + Zinc 1% is the right move for most people. It is affordable, accessible, and formulated to do exactly what it claims. Use it twice daily, be patient for eight weeks, and assess from there.