One Thing · Serum
Niacinamide 10%
Ships from 🇰🇷
A no-frills 10% niacinamide solution for oil control, uneven tone, and post-blemish marks. Designed to mix into other steps or work alone as a targeted serum.
★ 528 reviews
BEvidence grade
$27.76Best total · duties in
lightTexture · Serum
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Ingredient check⚠ 4 caution flags
✓ Fragrance-free⚠ Fungal-acne safe⚠ No drying alcohol⚠ Essential-oil free⚠ Pregnancy-cautious free
Evidence checkGrade B
Grade B — Solid transparency and consistent ratings; limited third-party clinical data (seed draft — verify before launch).
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Scored on clinicals · certifications · cross-platform rating consistency · transparency. Brands can't pay to change this.
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Where to buybest total $27.76
| Retailer | Price | Ship + duty | Total | |
|---|---|---|---|---|
| Jolse ✓ official KR shop, ships internationally · live price Pays: Cards · PayPal | $18.96 | $8.80 | $27.76BEST | Shop → |
Totals include estimated import duty on Korea-shipped orders (15%, post–de minimis). Links open retailer search; production uses exact product affiliate links. Payment methods indicative — verify at checkout.