Side-by-side comparison

Klairs Freshly Juiced Vitamin Drop vs Paula's Choice C15 Super Booster

Both are serums. They share a 66% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

66%Active overlap
Klairs
Freshly Juiced Vitamin Drop
SerumMid-rangeMorning only
Dark SpotsDullnesssensitiveSensitive skin

5% L-ascorbic acid with centella and botanical extracts — a lower vitamin C dose for sensitive skin. Less sting, less peak potency than 15% formulations. Good entry point for pigmentation if higher doses have failed.

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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 verdict

Which should you choose?

On price, the Klairs Freshly Juiced Vitamin Drop sits in the Mid-range 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 Klairs leans toward sensitive. The Paula's Choice leans toward Aging.

The overlap

What they share

At 66% active overlap, these are the ingredients doing comparable work in both formulas:

Vitamin C
The formulation

Ingredient stacks, side by side

Klairs — top of the list

  • Water~50–80%
  • Propylene Glycol~5–25%
  • Ascorbic Acid5%
  • Ethoxydiglycol~2–6%
  • Glycerin~1.5–4%
  • Centella Asiat…~1–2%

Paula's Choice — top of the list

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

KlairsPaula's Choice
CategorySerumSerum
Price tierMid-rangePremium
Best forDark Spots, Dullness, sensitiveDark Spots, Aging, Dullness
Usage notesMorning onlyMorning only
Active overlap66% — Vitamin C
Questions

Common questions

Is the Klairs Freshly Juiced Vitamin Drop or the Paula's Choice C15 Super Booster better?
Neither is universally better — they share 66% active-ingredient overlap, so for the actives that drive results they're close. The Klairs Freshly Juiced Vitamin Drop 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 Klairs Freshly Juiced Vitamin Drop and the Paula's Choice C15 Super Booster?
Both are serums that share Vitamin C. Where they differ: they sit in different price tiers (Mid-range vs Premium); the Klairs targets sensitive; the Paula's Choice targets Aging.
Are the Klairs Freshly Juiced Vitamin Drop and Paula's Choice C15 Super Booster dupes for each other?
They share 66% 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 Klairs Freshly Juiced Vitamin Drop and Paula's Choice C15 Super Booster 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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66% overlap

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