COSRX BHA Blackhead Power Liquid vs Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel
Both exfoliants contain Salicylic Acid, but each adds something the other doesn't. Here's where they overlap and where they split.
4% betaine salicylate — a gentler salicylic-acid equivalent derived from sugar beet — with niacinamide and willow bark water. Better tolerated than a straight 2% BHA, though effectively similar in function for surface blackheads and congestion.
A high-strength weekly at-home peel combining 25% AHA and 2% BHA with soothing extracts. Strong resurfacing for experienced acid users; a once-weekly treatment only, with strict SPF the next day.
Which should you choose?
Both contain Salicylic Acid. COSRX BHA Blackhead Power Liquid adds Niacinamide. Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel adds Glycolic Acid. Pick the one whose extra matches what you're treating. COSRX BHA Blackhead Power Liquid is the better fit for acne and oiliness; Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel for dullness and congestion. On price, COSRX BHA Blackhead Power Liquid is the less expensive option (Mid-range versus Premium).
What they share
This hero active appears in both formulas:
Ingredient stacks, side by side
COSRX BHA Blackhead Power Liquid — top of the list
- Water~50–80%
- Betaine Salicy…4%
- Butylene Glycol~3–10%
- Niacinamide~2–6%
- 1,2-Hexanediol~1.5–4%
Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel — top of the list
- Aqua~50–80%
- Glycolic Acid~5–25%
- Lactic Acid~3–10%
- Tartaric Acid~2–6%
- Salicylic Acid~1.5–4%
● marks ingredients that appear near the top of both lists. Percentages are positional estimates from INCI order, not disclosed doses.
The specs
| COSRX BHA Blackhead Power Liquid | Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel | |
|---|---|---|
| Category | Exfoliant | Exfoliant |
| Price tier | Mid-range | Premium |
| Best for | Acne, Rough Texture, Oiliness | Rough Texture, Dullness, Congestion |
| Usage notes | Evening only | Evening only |
| Shared hero actives | Salicylic Acid | |
Common questions
Is the COSRX BHA Blackhead Power Liquid or the Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel better?
What's the difference between the COSRX BHA Blackhead Power Liquid and the Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel?
Are the COSRX BHA Blackhead Power Liquid and Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel dupes for each other?
Can I use the COSRX BHA Blackhead Power Liquid and Paula's Choice Skin Perfecting 25% AHA + 2% BHA Exfoliant Peel together?
Related comparisons
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