Innisfree Black Tea Youth Enhancing Ampoule vs Knours PDRN Rice & Green Tea Revitalizing Serum
Same shelf, different answers — here's the whole picture in one table. Click either product for full ingredient decode, skin-twin reviews and every retailer's landed cost.
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Innisfree — Black Tea Youth Enhancing AmpouleFull breakdown →

Knours — PDRN Rice & Green Tea Revitalizing SerumFull breakdown →
| Innisfree Black Tea Youth Enhancing Ampoule | Knours PDRN Rice & Green Tea Revitalizing Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $34 | $26 |
| Best landed cost | $34 | $31.99 |
| Rating | ★ 4.4 (2,600) | ★ 4.3 (150) |
| Evidence grade | B | C |
| Korea signal | #28 serum · Olive Young Korea (seed) | — |
| Hero ingredients | Green tea, Peptides | PDRN (salmon DNA), Rice extract, Green tea |
| Best for | Aging, Dullness | Aging, Dullness, Dehydration |
| Skin types | Dry, Normal, Combination | Oily, Dry, Combination, Normal |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✗ | ✗ |
| Fungal-acne safe | ✗ | ✗ |
| US stock | ✓ | ✓ |
Our read: Innisfree Black Tea Youth Enhancing Ampoule carries the stronger evidence grade (B); Knours PDRN Rice & Green Tea Revitalizing Serum wins on landed cost. If your concerns match both, evidence is the tiebreaker we'd use.
Prices and rankings are seed data pending weekly verification. Take the 60-second quiz and both products get a personal match score on their pages.