The Ordinary Niacinamide 10% + Zinc 1% Review

What it is

This is a lightweight, water-based serum built around two ingredients dermatologists have liked for years. Niacinamide (vitamin B3) at a hefty 10% targets oil production, redness, and uneven texture. The 1% zinc helps regulate sebum and calm angry skin. There's no fragrance, no oils, and no fancy packaging. You get a frosted bottle, a dropper, and a price that lands somewhere in the $6 to $12 range.

The Ordinary built its whole reputation on selling proven actives without the markup, and this is the product that did most of the heavy lifting. It's been a TikTok and Reddit darling for years, and the formula has barely changed because it didn't need to.

How it actually performs

Owner consensus is consistent on the big claim: skin looks less greasy by mid-afternoon. That's the headline win. People with oily and combination skin report a more matte finish and fewer shiny T-zones within a few weeks of daily use. Pores look tighter too, though to be clear, nothing topical shrinks pores. It reduces the buildup that makes them look bigger.

On blemishes, expect modest, gradual improvement rather than a spot-treatment miracle. Niacinamide helps with the overall environment, so fewer new bumps over time, not an overnight clearing. The texture is thin and slightly tacky going on, dries fast, and layers fine under moisturizer and sunscreen. A pump or two covers the whole face.

The catches worth knowing

Two complaints come up over and over. First, the pilling. If you layer it with the wrong products, especially silicone-heavy moisturizers or certain sunscreens, it can roll up into little flakes. The fix is usually using less and waiting a minute before the next layer. Second, a minority of people find 10% niacinamide too strong and react with redness or breakouts. Sensitive skin should patch test and maybe ease in every other day.

Don't stack it directly with pure vitamin C in the same routine. They can compete and reduce each other's effectiveness, so use one in the morning and the other at night. And manage expectations on the zinc. At 1%, it's a supporting player, not the star.

Who it's for and who should skip it

Buy it if you have oily or combination skin, occasional breakouts, and you want a no-drama serum that costs less than lunch. It's also a smart first step for anyone curious about niacinamide who doesn't want to spend $40 to find out if their skin likes it.

Skip it if your skin is very dry or reactive, since the high concentration can feel harsh and won't add hydration. Skip it too if you want fast acne results. A proper treatment with salicylic acid or benzoyl peroxide will do more for active breakouts. And if your skin is already balanced and happy, you don't need this.

The verdict

Few skincare products earn their hype this cleanly. It does one job well, costs almost nothing, and has years of happy users behind it. The pilling and the occasional sensitivity are real, but easy to work around for most people. For oily and combination skin on a budget, this is the obvious place to start.

Frequently asked questions

How long does it take to see results?

Most people notice reduced shine within a couple of weeks. Improvements in texture, pores, and blemish frequency tend to show over 4 to 8 weeks of daily use. It's a slow, steady worker, not an overnight fix.

Can I use it with vitamin C or retinol?

Keep niacinamide and pure vitamin C in separate routines (one AM, one PM) since they can interfere with each other. It pairs fine with retinol, though if either irritates your skin, alternate nights rather than layering both at once.

Why is my serum pilling or balling up?

Usually too much product or layering it under silicone-heavy moisturizers and sunscreens. Use a smaller amount, let it absorb for a minute, and apply your next layer gently. That clears up the problem for most people.