Does Niacinamide Really Cause Purging? We Tested It

Myth Busted
We put the infamous ‘niacinamide purging’ myth to the test with a cult serum.
Expert Analysis · Honest Reviews · Real Results
1.🔬The Purging Panic

My DMs are flooded with pics of tiny whiteheads. Everyone’s blaming niacinamide.

The real issue? People are using it wrong — slathering it on like a moisturizer. It’s a potent active, not a hydrating toner.

2.The Cult Serum

The Ordinary’s Niacinamide 10% + Zinc 1%. $6.80. The claim: shrinks pores, controls oil, calms redness. No mention of purging.

1

The Price

Shockingly cheap for the concentration.

2

The Vibe

Lab-bottle chic — zero frills.

3

The Clientele

Oily, acne-prone skin types swear by it.

white round plastic container on white textile

Photo: Poko Skincare / Unsplash

3.⚠️What’s Actually In It

It’s a high dose of niacinamide (Vitamin B3) paired with zinc. This combo regulates sebum and strengthens your skin barrier. That’s it.

  • Niacinamide 10%: Oil control & barrier repair
  • Zinc PCA 1%: Anti-inflammatory & astringent
  • Tamrindus Indica Seed Gum: The gel texture
  • Pentylene Glycol: Lightweight hydration
two bottles of the same product on a pink and black background

Photo: Natallia Photo / Unsplash

4.📊The Reality Check

Texture is a slick gel — absorbs in 15 seconds, leaves a faint, sticky grip. Not silky.

Week 2: My t-zone was less shiny by noon. The surprise? A few tiny bumps on my cheek. Not a purge — I was using too much. Cut to 3 drops for my whole face and they vanished.

💡

One Thing: Apply to *completely* dry skin. Damp skin makes it pill like crazy.
5.💡Did It Deliver?

After 4 weeks: Oil production down 70%. Pores look slightly refined. Zero effect on existing hyperpigmentation. It’s not a miracle, it’s a regulator.

Buy if
You’re an oil slick by 10 AM and want a simple, potent serum.
⏭️

Skip if
Your skin is dry, sensitive, or you hate any texture that isn’t watery.
💰

Worth it?
At $7, it’s a no-brainer experiment for oily skin.
6.The Final Word

Niacinamide doesn’t cause purging. Bad technique and impatience cause breakouts. This serum works — if you use a tiny amount.

8.0/10
A potent, cheap oil-controller.
🛍️

Where to Buy: Sephora or the brand site. Buy it with your moisturizer to hit the free shipping threshold.