Verified dupe · Skincare
IOPE Retinol Expert 0.3% Wrinkle Corrector vs COSRX The Vitamin C 13 Serum
See all 73 IOPE dupes →As of Oct 4 · Prices reflect public listings on stores such as Coupang and may vary by store or promotion.
Benefits
Key ingredients
Only in this one
Only in this one
In both products
Ingredients some avoid
A preference, not a safety verdict
Full ingredient comparison
Both full ingredient lists compared. More shared ingredients means a closer match.
Ingredients are listed by amount. Below 1%, brands may list them in any order, so ranking there means little.
Compared by full ingredient list. It does not mean concentration or texture are identical, and prices are as of the listed time.
₩15,470₩125,000
COSRX The Vitamin C 13 Serum
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How we pick a dupe · Disclaimer
We compare the full ingredient lists and only pair products that share core actives. Prices are checked against market listings to confirm the dupe really costs less.
This comparison is based on full-ingredient (INCI) data published under cosmetics law.
Shared ingredients mean the full-ingredient lists overlap, not that blend concentrations match; how a product feels and performs can differ by formulation and ingredient grade.
Prices are market-verified against stores such as Coupang and may differ from official store prices; discounts and temporary changes may not be reflected, so check the seller before buying.
For sensitive skin, eczema, pregnancy or other special cases, please do not decide on this analysis alone and consult a dermatologist.
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This is an information service to support reasonable choices, and the final purchase decision is yours.