The Best Niacinamide Serums Worth Buying In 2026 — What I’ve Used And What Works
Niacinamide is the skincare ingredient I recommend most often to most people because its list of evidence-backed benefits is unusually long and its tolerance profile is unusually gentle. It reduces sebum production, minimises visible pore size, evens skin tone, reduces redness, and provides some anti-ageing benefit through supporting the skin barrier — and it does all of this without the irritation that vitamin C and retinol produce during introduction.
This makes it the sensible second step for a beginner skincare routine and a consistent presence in more advanced routines.
What Concentration You Need
10% is the concentration used in most clinical studies demonstrating niacinamide’s benefits. 5% is effective for gentler introduction or for sensitive skin. Below 5% is present but unlikely to produce significant visible results.
The percentage is almost always stated on the packaging. The Ordinary specifically, and most other reputable brands, list the active percentage clearly.
The Best Niacinamide Serums
This is the product I’d recommend to anyone who wants to try niacinamide without spending much money to discover whether they respond to it. At £5-8 for a 30ml bottle, the risk of the purchase is genuinely minimal.
The 10% niacinamide produces the sebum-reduction and pore-minimisation benefits that have driven niacinamide’s reputation in skincare communities. The zinc addition specifically targets oil production in a way that makes this formula particularly suitable for oily and combination skin.
The formula is thin and watery. It absorbs quickly and layers under moisturiser and SPF without pilling. It can be used morning or evening.
Price: £5-8
Available at: The Ordinary directly, ASOS Beauty, Boots, Cult Beauty
The Paula’s Choice Niacinamide Booster adds hyaluronic acid, vitamin C, and multiple supporting ingredients to the niacinamide base, creating a serum that addresses multiple skin concerns simultaneously. The formulation is more sophisticated than The Ordinary’s single-ingredient approach and produces more complete results for those with multiple concurrent skin concerns.
At £54, the price differential from The Ordinary is significant. The justification is the multi-benefit formula rather than the niacinamide concentration alone.
Price: £54
Available at: Paula’s Choice directly, Space NK
Minimalist is an Indian skincare brand that formulates at similar or identical concentrations to The Ordinary at similar prices. The Niacinamide 10% + Zinc 1% is directly comparable to The Ordinary’s version in formulation and produces comparable results at a similar price point.
For those who prefer to support different brands or who find the Minimalist formulation preferable in texture, it’s a direct alternative.
Price: £7-10
Available at: Minimalist directly (beminimalist.co), Boots
For those who want to spend more on a complete brightening and pore-minimising treatment that includes niacinamide alongside other proven actives, the Murad Vita-C Glycolic Brightening Serum combines vitamin C, glycolic acid, and niacinamide in a formula designed for comprehensive skin tone improvement.
This is not a beginner product — the combination of actives requires established skin tolerance. For those with established routines who want a more aggressive multi-active approach, it’s worth knowing about.
Price: £82
Available at: Murad directly (murad.co.uk), Sephora, Boots
Conclusion
Niacinamide is the skincare ingredient that provides the most benefit per complexity — it does multiple jobs well and is tolerated by most skin types without irritation. The Ordinary at £5-8 is the starting point that removes any financial barrier to trying it. Paula’s Choice provides the more complete multi-benefit formulation for those who want to address multiple concerns in one step. Minimalist is the direct budget alternative for those who prefer it. And Murad serves those ready for a more advanced multi-active approach. Whatever concentration you start with, give it eight weeks of consistent daily use before assessing results — niacinamide produces gradual improvement rather than immediate transformation.