Side-by-side comparison

Paula's Choice C15 Super Booster vs The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2%

Both are serums. They share a 70% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

70%Active overlap
Paula's Choice
C15 Super Booster
SerumPremiumMorning only
Dark SpotsAgingDullnessSensitive skinDamaged barrier

15% L-ascorbic acid with vitamin E and ferulic acid — the classic CE Ferulic-style antioxidant trio at a slightly lower price. Small bottle is deliberate: L-AA oxidises once air-exposed, so smaller packaging keeps potency up.

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The Ordinary
Ascorbic Acid 8% + Alpha Arbutin 2%
SerumBudgetMorning only
Dark SpotsDullnessSensitive skinDamaged barrier

Water-based vitamin C at a tolerable 8%, paired with alpha arbutin for pigmentation. Gentler than pure 20% L-ascorbic acid suspensions — a sensible first vitamin C for most skin types. Expect a mild tingle; discontinue if it stings.

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The verdict

Which should you choose?

On price, the The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2% 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. The Paula's Choice leans toward Aging.

The overlap

What they share

At 70% active overlap, these are the ingredients doing comparable work in both formulas:

Vitamin C
The formulation

Ingredient stacks, side by side

Paula's Choice — top of the list

  • Water~50–80%
  • Ethoxydiglycol~5–25%
  • Ascorbic Acid15%
  • Glycerin~2–6%
  • Propylene Glycol~1.5–4%

The Ordinary — top of the list

  • Aqua (Water)~50–80%
  • Ascorbic Acid8%
  • Propylene Glycol~3–10%
  • Glycerin~2–6%
  • Alpha-Arbutin2%

● 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, Aging, DullnessDark Spots, Dullness
Usage notesMorning onlyMorning only
Active overlap70% — Vitamin C
Questions

Common questions

Is the Paula's Choice C15 Super Booster or the The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2% better?
Neither is universally better — they share 70% active-ingredient overlap, so for the actives that drive results they're close. The The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2% 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 C15 Super Booster and the The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2%?
Both are serums that share Vitamin C. Where they differ: they sit in different price tiers (Premium vs Budget); the Paula's Choice targets Aging.
Are the Paula's Choice C15 Super Booster and The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2% dupes for each other?
They share 70% active-ingredient overlap based on published INCI lists, so one can stand in for the other on the actives that matter — chiefly Vitamin C. 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 C15 Super Booster and The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2% 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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77% overlap

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