Side-by-side comparison

Paula's Choice C15 Super Booster vs Paula's Choice Resist Anti-Aging Serum (Super Antioxidant)

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.

2Shared hero actives

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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Paula's Choice

Resist Anti-Aging Serum (Super Antioxidant)

SerumPremiumMorning or evening

Photoaging PreventionDullnessFine Lines

An antioxidant-rich serum combining vitamin C, vitamin E, ferulic-type antioxidants and ubiquinone with peptides. A well-formulated daytime defence serum; pricier than entry options but stacked with stable antioxidants.

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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. C15 Super Booster is the better fit for dark spots and signs of aging; Resist Anti-Aging Serum (Super Antioxidant) for preventing sun damage and fine lines. Both sit in the Premium price tier. C15 Super Booster is flagged morning only; Resist Anti-Aging Serum (Super Antioxidant) is flagged morning or evening.

The overlap

What they share

These hero actives appear in both formulas:

Vitamin CVitamin E

The formulation

Ingredient stacks, side by side

C15 Super Booster — top of the list

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

Resist Anti-Aging Serum (Super Antioxidant) — top of the list

Aqua~50–80%
Glycerin~5–25%
Ascorbyl Glucos…~3–10%
Dimethicone~2–6%
Tocopherol~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

	C15 Super Booster	Resist Anti-Aging Serum (Super Antioxidant)
Category	Serum	Serum
Price tier	Premium	Premium
Best for	Dark Spots, Aging, Dullness	Photoaging Prevention, Dullness, Fine Lines
Usage notes	Morning only	Morning or evening
Shared hero actives	Vitamin C and Vitamin E

Questions

Common questions

Is the Paula's Choice C15 Super Booster or the Paula's Choice Resist Anti-Aging Serum (Super Antioxidant) 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 Paula's Choice C15 Super Booster and the Paula's Choice Resist Anti-Aging Serum (Super Antioxidant)?

C15 Super Booster's hero actives are Vitamin C, Vitamin E and Ferulic Acid. Resist Anti-Aging Serum (Super Antioxidant)'s are Vitamin C, Vitamin E and Ubiquinone.

Are the Paula's Choice C15 Super Booster and Paula's Choice Resist Anti-Aging Serum (Super Antioxidant) 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 Paula's Choice C15 Super Booster and Paula's Choice Resist Anti-Aging Serum (Super Antioxidant) together?

Usually, yes. Apply the thinner texture first, then the thicker one, and patch-test when introducing anything new.

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