Does Niacinamide Really Reduce Pores? We Tested The Ordinary Serum

Myth Busted
We put the viral pore-refining serum to the test to see if it lives up to the hype.
Expert Analysis · Honest Reviews · Real Results
1.🔬The Pore Lie

You can’t shrink pores. It’s a fact. They don’t have muscles.

But you can absolutely make them look less like craters. That’s the real goal.

2.The Viral Serum

The Ordinary Niacinamide 10% + Zinc 1%. $5.90. The claim? Refines pores, reduces shine. For that price, I had to try.

1

The Price

It’s cheaper than my oat milk latte.

2

The Vibe

Clinical, no-frills bottle — you get what you pay for.

3

The Claim

“Visible pore refinement” in 8 weeks. Okay, prove it.

black plastic bottle and two canisters

Photo: Rebecca Aldama / Unsplash

3.🧪What’s In The Bottle

It’s a two-ingredient show. Niacinamide (Vitamin B3) is the star — it regulates oil and calms inflammation. Zinc is the backup singer — it’s a mild astringent.

  • Niacinamide 10%: Oil control & barrier support
  • Zinc PCA 1%: Mattifying & anti-inflammatory
  • Tamarinus Indica Seed Gum: The gel texture
  • Pentylene Glycol: Hydration + penetration booster
two bottles of the same product on a pink and black background

Photo: Natallia Photo / Unsplash

4.👁️The Sticky Truth

Texture is weird — a thin, slippery gel. Absorbs in 20 seconds but leaves a faint, sticky film. Not silky. You feel it.

By week two, my midday shine was cut in half. Unexpected? How much less I needed to blot. The stickiness became a non-issue.

💡

One Thing: Use less than you think — a pea-sized amount for the whole face. More = pilling city.
woman standing next to pink wall while scratching her head

Photo: averie woodard / Unsplash

5.Did It Work?

After 6 weeks: Oil production way down. Pores? They look cleaner, less stretched out — but they’re still there. It’s an illusion of refinement, and I’ll take it.

Buy if
You’re oily or combo and want to mattify on a budget.
⏭️

Skip if
You hate any texture besides water, or your skin is very dry/sensitive.
💰

Worth it?
For under $6? Unequivocally yes. It’s a workhorse.
6.💡The Final Word

It doesn’t perform miracles, but it delivers exactly what it promises for the price. A solid, boringly effective buy.

8.0/10
A no-frills, effective oil controller.
🛍️

Where to Buy: Sephora or the brand site. It’s always in stock — no need to panic-buy.