Verified dupe · Serum
랑콤 레네르지 트리플 세럼 dupe
Serum dupe
Prices reflect official listings and may vary by retailer or promotion.
The two formulas list 52 and 38 ingredients, with 9 in common. Both carry 히알루론산 and 페룰릭애씨드 and overlap on their moisture and brightening ingredients, so they work as an alternative on the key ingredients. The full ingredient lists are not identical.
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Efficacy
The ingredients aren't identical, but both products aim at similar benefits. Numbers show how many ingredients back each one.
Key shared ingredients · 2
The key ingredients both products share — the basis for the match.
A signature humectant that pulls in and holds water, leaving skin hydrated and smooth.
Full ingredient comparison
Both full ingredient lists compared. More shared ingredients means a closer match.
See ingredients side by side
Shared · 9
Original only · 43
Dupe only · 25
Free-from
Whether each product contains ingredients some prefer to avoid. A check means it does not contain them — a preference, not a safety verdict.
Watch-outs
Fragrance, parabens, etc. that some prefer to avoid. Products within labeled limits are generally fine.
랑콤
코스알엑스
Compared by full ingredient list. It does not mean concentration or texture are identical, and prices are as of the listed time.
What the ingredients show
Both products lean on the same core active: a signature humectant that pulls in and holds water, leaving skin hydrated and smooth.
Across the full lists, both focus on moisture and brightening. They don't share every ingredient, but the payoff lands in a similar place.
Neither product lists paraben and mineral oil. The 코스알엑스 does list sodium metabisulfite (kfda usage limit) and tocopherol (kfda usage limit) though, so check the label if your skin tends to react to those.
A close ingredient list doesn't mean the strength or the texture matches. The same ingredient can feel different depending on how much is used and how it's made, so treat the shared ingredients as a starting point rather than a promise.
The price gap is about 84%, or roughly ₩153,750. If you want a similar ingredient makeup at a lighter price, this is a serum worth trying first.
Other verified dupes
Disclaimer
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 can differ by formulation and origin.
Prices are market-verified against Naver and 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.
This is an information service to support reasonable choices, and the final purchase decision is yours.