COSRX The Niacinamide 15 Serum vs Jumiso Niacinamide 20 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.
| COSRX The Niacinamide 15 Serum | Jumiso Niacinamide 20 Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $23 | $17 |
| Best landed cost | $23 | $21.99 |
| Rating | ★ 4.4 (2,900) | ★ 4.9 (79) |
| Evidence grade | B | B |
| Korea signal | #18 serum · Olive Young Korea (seed) | — |
| Hero ingredients | Niacinamide, Zinc PCA | Niacinamide |
| Best for | Dark spots (PIH), Pores & Oil | Pores & Oil, Dark spots (PIH), Dullness |
| Skin types | Oily, Combination, Normal | Oily, Combination, Normal |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✓ | ✗ |
| Fungal-acne safe | ✓ | ✗ |
| US stock | ✓ | ✓ |
Our read: Evidence grades are equal (B) — so let fit decide: check the skin-type rows above, and if both fit, Jumiso Niacinamide 20 Serum is the cheaper landed cost over COSRX The Niacinamide 15 Serum.
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.