Side-by-side comparison

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

Both are serums built on the same key active: Vitamin C. That makes them genuine alternatives, so price, texture and the supporting ingredients decide it.

1Shared hero active
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?

Both formulas lean on Vitamin C, so for the ingredient doing the work they're close alternatives. Klairs Freshly Juiced Vitamin Drop is the better fit for sensitive skin; Paula's Choice C15 Super Booster for signs of aging. On price, Klairs Freshly Juiced Vitamin Drop is the less expensive option (Mid-range versus Premium).

The overlap

What they share

This hero active appears in both formulas:

Vitamin C
The formulation

Ingredient stacks, side by side

Klairs Freshly Juiced Vitamin Drop — 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 C15 Super Booster — 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

Klairs Freshly Juiced Vitamin DropPaula's Choice C15 Super Booster
CategorySerumSerum
Price tierMid-rangePremium
Best forDark Spots, Dullness, sensitiveDark Spots, Aging, Dullness
Usage notesMorning onlyMorning only
Shared hero activesVitamin C
Questions

Common questions

Is the Klairs Freshly Juiced Vitamin Drop or the Paula's Choice C15 Super Booster better?
Neither is clearly better on ingredients, since both rely on Vitamin C. Choose on price, texture and how your skin responds to the rest of the formula.
What's the difference between the Klairs Freshly Juiced Vitamin Drop and the Paula's Choice C15 Super Booster?
Klairs Freshly Juiced Vitamin Drop's hero actives are Vitamin C and Centella Asiatica. Paula's Choice C15 Super Booster's are Vitamin C, Vitamin E and Ferulic Acid. They also sit in different price tiers (Mid-range versus Premium).
Are the Klairs Freshly Juiced Vitamin Drop and Paula's Choice C15 Super Booster dupes for each other?
Yes, on the ingredient that matters. Both are built around Vitamin C, though concentrations, texture and the supporting ingredients can still differ.
Can I use the Klairs Freshly Juiced Vitamin Drop and Paula's Choice C15 Super Booster together?
Usually, yes. Apply the thinner texture first, then the thicker one, and patch-test when introducing anything new.
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1 shared hero active

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