Side-by-side comparison

CeraVe Resurfacing Retinol Serum (Post-Blemish) vs COSRX The Retinol 0.5 Oil

Both are serums. They share a 64% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

64%Active overlap
CeraVe
Resurfacing Retinol Serum (Post-Blemish)
SerumBudgetEvening only
Post-Acne MarksRough TextureCongestion

Encapsulated retinol with licorice and niacinamide, targeted at post-acne marks and uneven texture. The CeraVe ceramide base buffers irritation — a gentle entry retinol rather than a high-strength one.

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COSRX
The Retinol 0.5 Oil
SerumBudgetEvening only
Fine LinesRough TextureDullness

A beginner-friendly 0.5% retinol in a squalane-rich oil base with sea buckthorn. A gentle introductory retinol that buffers irritation through its oil base; build up slowly and follow with SPF in the morning.

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The verdict

Which should you choose?

Both sit in the Budget tier, so cost isn't the deciding factor here — choose on texture, finish and the supporting ingredients. The CeraVe leans toward Congestion, Post-Acne Marks. The COSRX leans toward Dullness, Fine Lines.

The overlap

What they share

At 64% active overlap, these are the ingredients doing comparable work in both formulas:

Retinol
The formulation

Ingredient stacks, side by side

CeraVe — top of the list

  • Aqua~50–80%
  • Glycerin~5–25%
  • Dimethicone~3–10%
  • Niacinamide~2–6%
  • Caprylic/Capric…~1.5–4%

COSRX — top of the list

  • Caprylic/Capric…~30–70%
  • Squalane~5–25%
  • Helianthus Annu…~3–10%
  • Retinol~2–6%
  • Hippophae Rhamn…~1.5–4%
  • Tocopherol~1–2%

● 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

CeraVeCOSRX
CategorySerumSerum
Price tierBudgetBudget
Best forPost-Acne Marks, Rough Texture, CongestionFine Lines, Rough Texture, Dullness
Usage notesEvening onlyEvening only
Active overlap64% — Retinol
Questions

Common questions

Is the CeraVe Resurfacing Retinol Serum (Post-Blemish) or the COSRX The Retinol 0.5 Oil better?
Neither is clearly better — they overlap 64% on active ingredients and sit in the same price tier. The difference comes down to texture, finish and the supporting ingredients, so the right choice depends on your skin type and preferences.
What's the difference between the CeraVe Resurfacing Retinol Serum (Post-Blemish) and the COSRX The Retinol 0.5 Oil?
Both are serums that share Retinol. Where they differ: the CeraVe targets Congestion, Post-Acne Marks; the COSRX targets Dullness, Fine Lines.
Are the CeraVe Resurfacing Retinol Serum (Post-Blemish) and COSRX The Retinol 0.5 Oil dupes for each other?
They share 64% active-ingredient overlap based on published INCI lists, so one can stand in for the other on the actives that matter — chiefly Retinol. A dupe matches the hero actives, not the full sensory experience, so expect differences in texture, fragrance and exact concentrations.
Can I use the CeraVe Resurfacing Retinol Serum (Post-Blemish) and COSRX The Retinol 0.5 Oil 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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