🏆 Editor's Choice
The Ordinary has revolutionised affordable skincare, and their Niacinamide 10% + Zinc 1% serum sits firmly among their bestselling products. At just £5 for a 30ml bottle, it promises to tackle blemishes, reduce sebum production, and brighten skin—all without breaking the bank. But does this budget-friendly serum actually deliver on its claims?
This lightweight serum targets those struggling with oily, congested, or blemish-prone skin. The high concentration of niacinamide (vitamin B3) works alongside zinc to help regulate oil production and minimise the appearance of pores, while also supporting the skin's natural barrier function. It's become something of a cult favourite across UK beauty communities, particularly among younger consumers and those new to active skincare ingredients.
Our verdict? This is an exceptional entry-level serum that punches well above its price point. While it may not suit every skin type—particularly those with sensitive or dry skin—for its intended audience of oily and blemish-prone individuals, it represents outstanding value for money. We'd recommend it as a solid addition to most skincare routines, though with some caveats we'll explore below.
The Ordinary maintains its signature minimalist aesthetic with this product. The serum comes in a simple glass dropper bottle with clean white labelling—no frills, no fancy marketing imagery, just straightforward information about what's inside. The dropper dispenses product efficiently, though some users find it slightly fiddly to control the exact amount dispensed.
The formulation itself is water-based and has a slightly viscous texture that's neither too thick nor too watery. It absorbs relatively quickly into the skin without leaving a sticky residue, making it easy to layer under moisturisers and SPF. The 30ml bottle should last approximately two to three months with twice-daily use, representing excellent economy.
The star ingredient here is niacinamide at a potent 10% concentration. This vitamin B3 derivative is well-researched and proven to help with multiple skin concerns, including reducing the appearance of blemishes, minimising pore visibility, and evening out skin tone. The addition of 1% zinc PCA provides sebum-regulating properties, making this particularly effective for those battling excess oiliness.
In practical use, many users report visible improvements in skin texture and reduced breakouts within four to six weeks of consistent use. The serum works best when applied to clean skin, either morning or evening (or both), followed by a moisturiser. For UK users, pairing this with a good SPF during daytime is essential, as niacinamide can make skin slightly more sensitive to sun exposure.
However, it's worth noting that the 10% concentration may be too potent for some individuals. Those with sensitive skin might experience initial tingling, redness, or even increased breakouts during the first few weeks—a phenomenon sometimes called 'purging'. If irritation persists beyond a fortnight, it may be wise to reduce application frequency or consider a lower-strength alternative.
At £5 from most UK retailers including Boots, Superdrug, and Amazon, this serum offers remarkable value. Comparable niacinamide serums from premium brands can cost anywhere from £15 to £40 for similar sizes, yet The Ordinary's straightforward formulation delivers the same active ingredients without the luxury markup.
For budget-conscious UK shoppers, particularly students or those building their first proper skincare routine, this represents an accessible entry point into active skincare. The cost-per-use works out to mere pence, making it feasible to maintain consistent long-term use—which is precisely what's needed for best results with niacinamide.
The Ordinary's direct-to-consumer model and no-nonsense branding keep costs low without compromising on ingredient quality. This product proves that effective skincare needn't come with a hefty price tag.
This serum is ideally suited for individuals with oily, combination, or blemish-prone skin types. If you struggle with enlarged pores, excess sebum production, or frequent breakouts, the niacinamide and zinc combination addresses these concerns directly. It's also excellent for those looking to even out skin tone and achieve a brighter complexion over time.
Teenagers and young adults dealing with hormonal acne may find particular benefit, as may anyone seeking to transition from harsh spot treatments to gentler, preventative skincare. The unisex formulation works equally well for all genders.
However, those with dry, dehydrated, or highly sensitive skin should approach with caution. The 10% concentration may prove too intense, potentially causing dryness or irritation. Similarly, if you're already using other potent actives like vitamin C or strong retinoids, introduce this product gradually to avoid overwhelming your skin barrier.
Pregnant or breastfeeding individuals should note that niacinamide is generally considered safe for use during pregnancy, though consulting with a healthcare professional before introducing new skincare products is always advisable.
The Ordinary Niacinamide 10% + Zinc 1% serum delivers impressive blemish-fighting and oil-controlling results at an unbeatable price point. We wholeheartedly recommend it for those with oily or combination skin seeking affordable, effective active skincare, though sensitive skin types should proceed with caution or start with less frequent application.
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