Side-by-side comparison

Paula's Choice 10% Niacinamide Booster vs The Ordinary Niacinamide 10% + Zinc 1%

Both are serums. They share a 77% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

77%Active overlap
Paula's Choice
10% Niacinamide Booster
SerumPremiumMorning or evening
Dark SpotsOilinessRedness

A lightweight 10% niacinamide booster with allantoin, licorice root and antioxidants. Designed to layer under your regular serum — a fractional dose for users who don't want a full niacinamide routine but want the pigmentation and oil-control benefits.

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The Ordinary
Niacinamide 10% + Zinc 1%
SerumBudgetEvening only
OilinessAcneDark SpotsRough Texture

High-dose niacinamide serum targeting sebum regulation, visible pore appearance and post-acne marks. Water-based, fragrance-free, and compatible with almost every other active on the shelf — the default oil-control serum for combination and oily skin.

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The verdict

Which should you choose?

On price, the The Ordinary Niacinamide 10% + Zinc 1% sits in the Budget tier versus Premium for the Paula's Choice — so it's the more budget-led pick if the overlap is what you're after. On how you'd use them, the Paula's Choice is flagged Morning or evening while the The Ordinary is flagged Evening only. The Paula's Choice leans toward Redness. The The Ordinary leans toward Acne, Rough Texture.

The overlap

What they share

At 77% active overlap, these are the ingredients doing comparable work in both formulas:

Niacinamide
The formulation

Ingredient stacks, side by side

Paula's Choice — top of the list

  • Water~50–80%
  • Niacinamide10%
  • Acetyl Glucosa…~3–10%
  • Phospholipids~2–6%
  • Sodium Hyaluro…~1.5–4%
  • Glycerin~1–2%
  • Butylene Glycol~1–2%

The Ordinary — top of the list

  • Aqua (Water)~50–80%
  • Niacinamide10%
  • Pentylene Glycol~3–10%
  • Zinc PCA1%
  • Dimethyl Isoso…~1.5–4%

● marks ingredients that appear near the top of both lists. Percentages are positional estimates from INCI order, not disclosed doses.

At a glance

The specs

Paula's ChoiceThe Ordinary
CategorySerumSerum
Price tierPremiumBudget
Best forDark Spots, Oiliness, RednessOiliness, Acne, Dark Spots
Usage notesMorning or eveningEvening only
Active overlap77% — Niacinamide
Questions

Common questions

Is the Paula's Choice 10% Niacinamide Booster or the The Ordinary Niacinamide 10% + Zinc 1% better?
Neither is universally better — they share 77% active-ingredient overlap, so for the actives that drive results they're close. The The Ordinary Niacinamide 10% + Zinc 1% is the more budget-friendly option, while the other may differ on texture, finish and supporting ingredients. Pick based on your skin's priorities rather than a single 'winner'.
What's the difference between the Paula's Choice 10% Niacinamide Booster and the The Ordinary Niacinamide 10% + Zinc 1%?
Both are serums that share Niacinamide. Where they differ: they sit in different price tiers (Premium vs Budget); the Paula's Choice is Morning or evening; the The Ordinary is Evening only; the Paula's Choice targets Redness; the The Ordinary targets Acne, Rough Texture.
Are the Paula's Choice 10% Niacinamide Booster and The Ordinary Niacinamide 10% + Zinc 1% dupes for each other?
They share 77% active-ingredient overlap based on published INCI lists, so one can stand in for the other on the actives that matter — chiefly Niacinamide. A dupe matches the hero actives, not the full sensory experience, so expect differences in texture, fragrance and exact concentrations.
Can I use the Paula's Choice 10% Niacinamide Booster and The Ordinary Niacinamide 10% + Zinc 1% together?
They both fill the serum slot in a routine, so you'd normally pick one rather than layer both. If you want to use both, treat one as your daytime option and the other for evening, and patch-test when introducing anything new.
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99% overlap

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