Does Niacinamide Really Reduce Pores? We Tested The Ordinary Serum

Myth Busted
This viral serum promises to shrink pores, but does the science back up the hype?
Expert Analysis · Honest Reviews · Real Results
1.🔬The Pore Shrinkage Myth

No serum can physically shrink your pores. That’s the first thing my derm friend said when I showed her the bottle.

But they can look smaller — and that’s the magic trick this $6 serum attempts.

2.The Viral Tube

It’s a 1-oz dropper bottle from The Ordinary. Claims to minimize pores, reduce shine, and clear congestion. For the price, I had to test the hype.

1

Texture

A clear, slightly sticky serum.

2

Scent

Absolutely none — it smells like a lab.

3

Price

$6.20. Less than my oat milk latte.

3.🧪Science, Not Magic

10% Niacinamide is the star. It regulates oil and calms inflammation. 1% Zinc pulls double duty on sebum control.

  • Niacinamide (10%): Regulates oil & improves skin barrier
  • Zinc PCA (1%): Mattifies & reduces shine
  • Hyaluronic Acid Crosspolymer: Lightweight hydration
  • Tamrindus Indica Seed Gum: That weird sticky texture
4.🔍The Sticky Truth

Applies like a thin gel — absorbs in 20 seconds but leaves a faint, tacky film. Not silky. You feel it.

By week two, my T-zone was noticeably less greasy by noon. Unexpected downside? It pills like crazy under moisturizer if you don’t let it fully dry.

💡

One Thing: Apply to bone-dry skin. Wait a full 90 seconds before your next layer. Non-negotiable.
5.The Real Results

Pores didn’t vanish. But with less oil filling them, they appeared cleaner and less obvious. My foundation stayed put longer. Zero effect on deep blackheads.

Buy if
You have oily, shiny skin and want a budget oil-regulator.
⏭️

Skip if
You hate any texture or have dry, sensitive skin — this will likely irritate.
💰

Worth it?
For $6, it’s a brilliant intro to niacinamide. Manage expectations.
6.💡Final Call

It’s a brilliant, no-frills oil controller — not a pore-minimizing miracle. For the price, it delivers one specific job well.

7.5/10
A sticky, effective budget buy for shine.
🛍️

Where to Buy: Direct from The Ordinary or Sephora. Get the 1-oz first — a little goes a long way.