T
TIRTIR · Serum
Pure Vitamin C24 Serum
US stock
A concentrated vitamin C serum from TIRTIR aimed at dullness and lingering dark marks. For skin comfortable with actives that wants brighter, more even tone.
★ 4.4350 reviews
CEvidence grade
$24.99Best total · duties in
lightTexture · Serum
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Ingredient check⚠ 5 caution flags
⚠ Fragrance-free⚠ Fungal-acne safe⚠ No drying alcohol⚠ Essential-oil free⚠ Pregnancy-cautious free
Evidence checkGrade C · MFDS ✓
🇰🇷 MFDS-certified functional cosmetic — brightening (미백)Filed with Korea's FDA as 「티르티르퓨어비타민씨24세럼」 — a regulator-reviewed efficacy claim, not a marketing one.
Grade C — Insufficient independent data — graded conservatively pending verification.
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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 $24.99
| Retailer | Price | Ship + duty | Total | |
|---|---|---|---|---|
| iHerb ✓ official US warehouse · fast domestic shipping (indicative) Pays: Cards · PayPal · Apple Pay · Google Pay | $20 | $4.99 | $24.99BEST | 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.