O
One Thing · Serum
Centella Asiatica Extract
OY Korea #43 serumUS stock
One ingredient, one bottle, $12 — the DIY-mixing brand's centella base that r/AsianBeauty adopted for custom routines.
★ 4.42,900 reviews
BEvidence grade
$12Best total · duties in
lightTexture · Serum
Is this right for your skin? — take the 60-second quiz and this box becomes a personal verdict.
Ingredient check✓ all clear
✓ 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).
How grading works
Scored on clinicals · certifications · cross-platform rating consistency · transparency. Brands can't pay to change this.
What Korea says#43 serum
#43 serum · Olive Young Korea (seed) · Rank indicative — weekly verification pending
Reviewscommunity links
No close skin matches yet —
Read full third-party reviews
We link out instead of copying — full reviews belong to their authors and platforms.
Where to buybest total $12
| Retailer | Price | Ship + duty | Total | |
|---|---|---|---|---|
| Amazon ✓ official Official store — verify seller before launch Pays: Visa · MC · Amex · Discover · Amazon Pay · Affirm | $12 | — | $12BEST | Shop → |
| Olive Young Global ✓ official Ships from Korea 7–14d · +15% duty Pays: Cards · PayPal · Apple Pay · Alipay+ | $10 | $8.50 | $18.50 | 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.