Anua Niacinamide 10% + TXA 3% Serum Review: The Dark-Spot Serum K-Beauty Keeps Selling Out
Anua's brightening serum stacks 10% niacinamide with 3% tranexamic acid — a pairing usually found in clinic-brand products twice the price. We dug into the formula and what long-term users report on uneven tone, post-blemish marks, and dullness — and who genuinely shouldn't buy it.
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We analyze each product's full ingredient list and formulation, cross-check it against Korea's KFDA cosmetic regulations, and synthesize what verified long-term users consistently report. We don't accept sponsorships, and we don't claim to wear-test products ourselves — our standard is transparent, formula-first analysis. About our method.
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Anua Niacinamide 10% + TXA 3% Serum Review: The Dark-Spot Serum K-Beauty Keeps Selling Out
Niacinamide serums are everywhere, but Anua's version keeps appearing in Korean best-seller lists for one reason: it doesn't stop at niacinamide. It adds 3% tranexamic acid (TXA) — a brightening ingredient usually reserved for derma-clinic brands — at a drugstore-adjacent price. We compared it head-to-head in our niacinamide serum showdown; this is the full solo review.
What It Is
This is a lightweight, water-gel brightening serum built around two headline actives: 10% niacinamide and 3% tranexamic acid. The supporting cast is calm — heartleaf (Anua's signature soother), panthenol, and hyaluronic acid — so the formula reads as "high-active but barrier-considerate" on paper.
The texture is a slightly viscous gel that spreads thin and settles fast, with no fragrance. It slots into the serum step morning or night, and layers under sunscreen without pilling in most user accounts.
Just want the price first? → Jump to Where to Buy
How We Research
We don't run a lab or claim to wear-test products for weeks. This verdict is built from the published ingredient list (10% niacinamide, 3% TXA, heartleaf, panthenol), how those concentrations compare across the category, and the consistent experiences long-term users report across Korean platforms and global retailers. See About for our full method.
SGC Score
SGC Score — formula-first (0–5)
| Axis | Score | Basis |
|---|---|---|
| Brightening potential | 4.5 | 10% niacinamide + 3% TXA — clinic-tier concentrations (INCIDecoder) |
| Irritation-safety | 4.0 | fragrance-free, heartleaf + panthenol buffer, KFDA-listed; 10% is still high for first-timers |
| Value (price/use) | 4.5 | dual-active stack under $30 — TXA at this price is rare |
| Texture/wear | 4.0 | fast-absorbing gel, no pilling under sunscreen (aggregated reports) |
| Overall | 4.3 | — |
The Results
What long-term users consistently report: post-blemish marks looking less prominent over two to three months, a more even-looking tone overall, and less of the dull, tired cast that uneven skin gives. The fragrance-free gel texture gets repeated praise from people who found Western 10% niacinamide serums sticky or stinging.
Here's the honest part. This is a gradual-tone serum, not an eraser: TXA and niacinamide support a more even-looking complexion over weeks, and consistent sunscreen does at least half the work. Users chasing fast results in days are the most common disappointed group.
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Who Should Buy It
Anyone dealing with post-blemish marks, uneven tone, or general dullness who wants one serious brightening serum without going the vitamin C route. It pairs naturally with the post-acne marks routine and sits comfortably alongside calm basics like the Anua Heartleaf 77% toner.
Who Should Skip It
Skip it if your skin is reactive to high-percentage niacinamide — 10% can flush sensitive skin, and a gentler pick from our brightening serum shortlist is the smarter start. Also skip it if you're already running a full acid-layering routine — stacking TXA on top of multiple exfoliating acids is how barriers get wrecked. And if you want maximum-glow radiance rather than tone-evening, a vitamin C serum is the better tool.
The One-Line Recommendation
A rare under-$30 serum that pairs 10% niacinamide with 3% tranexamic acid: the patient pick long-term users credit for a more even-looking tone — as long as your skin tolerates high-active formulas and you wear sunscreen daily.
→ Check today's price in the Where to Buy table below.
Where to Buy
| Store | Pick | Note |
|---|---|---|
| Stylevana | → Anua Niacinamide 10% + TXA Serum on Stylevana | often lowest price |
| Amazon | → Anua Niacinamide 10% + TXA Serum on Amazon | fast / Prime · auto-localized |
| YesStyle | → Anua Niacinamide 10% + TXA Serum on YesStyle | global shipping |
Sources
- Anua official product page — published ingredient list and usage guidance
- INCIDecoder — niacinamide and tranexamic acid ingredient profiles
- KFDA (MFDS) functional cosmetics listings — brightening ingredient registration
- Aggregated verified buyer reviews — Korean platforms and global retailers (Stylevana, YesStyle, Amazon)
Related reading: Anua vs The Ordinary vs numbuzin · Best Korean brightening serums · Post-acne marks routine · Anua Heartleaf 77% Toner review