Does Niacinamide Really Cause Purging? We Tested a Viral Serum

Myth Busted
We put the internet’s most debated serum to the test to see if ‘purging’ is a myth or a must.
Expert Analysis · Honest Reviews · Real Results
1.🔬The Purging Panic

My feed is full of it. People swearing this serum made them break out worse than finals week.

Here’s the thing: dermatologists say niacinamide doesn’t cause purging. That’s for retinoids. So what’s really happening?

2.🤔The Viral Suspect

The Ordinary‘s 10% Niacinamide + Zinc 1% Serum. $6.80. The claim? Clearer, more balanced skin. The internet’s claim? A breakout nightmare.

1

10% Niacinamide

A high concentration aimed at visibly reducing blemishes and congestion.

2

1% Zinc PCA

Targets excess oil — the kind that makes your foundation slide off by noon.

3

The Price

Less than your morning latte. The real risk is FOMO.

a close up of a person getting a botilage treatment

Photo: Masum Rahimi / Unsplash

3.⚠️What’s Actually In It

It’s a short list. The formula is brutally simple — no fragrance, no fluff. That’s the point.

  • Niacinamide (Vitamin B3): Regulates oil & minimizes pores
  • Zinc PCA: Mattifies & reduces shine
  • Tamarinus Indica Seed Gum: The texture wizard — makes it slippery
  • Pentylene Glycol: Hydration + helps the actives penetrate
white plastic tube bottle on brown and white marble table

Photo: Poko Skincare / Unsplash

4.🧪The Skin Test

Texture is sticky-tacky. Like a thin glue. Absorbs in 20 seconds — leaves a velvety, tight finish.

Week 2: A few tiny, angry bumps appeared. Not a purge — my skin was just pissed at the high dose. I dialed back to every other day. They vanished.

💡

One Thing: Use a pea-sized amount for your whole face. More is not better — it’s a ticket to irritation city.
black and brown makeup palette on white textile

Photo: Laura Chouette / Unsplash

5.📊The Real Results

After a month, my midday shine was cut by 70%. Pores looked… airbrushed? Active breakouts? No real change. This is prevention, not an emergency spot treatment.

Buy if
You have oily, congested skin and want to prevent future breakouts.
⏭️

Skip if
Your skin is sensitive or dry. Start with 5% niacinamide instead.
💰

Worth it?
For $7, it’s a no-brainer experiment. But it’s not a miracle worker.
circular white Onne on brown figure

Photo: ONNE Beauty / Unsplash

6.Final Call

It doesn’t cause purging. It can cause irritation if you use too much, too fast. A classic case of user error, not a bad product.

7.5/10
A potent, cheap oil-control workhorse.
🛍️

Where to Buy: Sephora or the brand site. Patch test behind your ear for 3 days first. Seriously.