Does Niacinamide Really Cause Purging? We Tested The Ordinary’s Serum

Myth Busted
That initial breakout might not be what you think—we separate niacinamide fact from fiction.
Expert Analysis · Honest Reviews · Real Results
1.🔬The Purging Panic

My chin erupted after three days. Tiny, angry whiteheads—the exact opposite of what I wanted.

Here’s the truth: Niacinamide doesn’t cause purging. Purging only happens with actives that increase cell turnover, like retinoids. This was likely irritation.

2.🤔The $6 Experiment

It’s The Ordinary’s Niacinamide 10% + Zinc 1%. $6.80. The claim? Clearer, balanced skin. I was skeptical.

1

Texture

Water-based serum—feels like slightly sticky water.

2

Concentration

10% niacinamide is high. Most brands use 2-5%.

3

Pairing

They say don’t mix it with pure Vitamin C. I listened.

anti-aging serum vial

Photo: Chandra Oh / Unsplash

3.⚠️What’s Actually In It

Two main players. Niacinamide (Vitamin B3) tackles oil and redness. Zinc PCA helps with sebum regulation. That’s it.

  • Niacinamide 10%: Reduces appearance of blemishes & congestion
  • Zinc PCA 1%: Helps regulate oil production
  • Tamarinus Indica Seed Gum: The texture agent—that’s the stickiness
  • Pentylene Glycol: A humectant and preservative booster
black box on white textile

Photo: Laura Chouette / Unsplash

4.📊The Reality Check

Pills like crazy if you layer it wrong. Absorbs in 15 seconds, leaves a faint, tight film.

By week two, the initial breakout calmed. My t-zone was less of an oil slick by noon—a genuine shock.

💡

One Thing: Apply to BONE-DRY skin. Wait 90 seconds before your next step. This prevents pilling.
5.💡Who It’s Really For

Oil production? Slashed. Major blemishes? Still got a few. Pore appearance? Slightly smoother. It’s a support act, not a miracle.

Buy if
You have oily, congestion-prone skin and want affordable oil control.
⏭️

Skip if
Your skin is sensitive or dry—this could be irritating.
💰

Worth it?
For under $7? Absolutely. It’s a cheap way to test the ingredient.
6.Final Word

Not a purger, but a potential irritant. Start slow. It’s a brilliant budget buy for shine control, but temper your clearing-a-complexion expectations.

7.5/10
A potent, no-frills oil regulator.
🛍️

Where to Buy: Sephora or the brand site. Get the 30ml first—it lasts forever.