Cos De BAHA Azelaic Acid 10% Serum vs NEOGEN Dermalogy Real Niacinamide 15% 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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Cos De BAHA — Azelaic Acid 10% SerumFull breakdown →
NEOGEN — Dermalogy Real Niacinamide 15% SerumFull breakdown →
| Cos De BAHA Azelaic Acid 10% Serum | NEOGEN Dermalogy Real Niacinamide 15% Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $16 | $38 |
| Best landed cost | $16 | $43.99 |
| Rating | ★ 4.3 (2,400) | ★ 4.5 (800) |
| Evidence grade | B | A |
| Korea signal | #49 serum · Olive Young Korea (seed) | — |
| Hero ingredients | Azelaic acid, Niacinamide | Niacinamide |
| Best for | Redness / Rosacea-prone, Acne, Dark spots (PIH) | Dark spots (PIH), Pores & Oil, Acne |
| Skin types | Sensitive, Oily, Combination, Normal | Oily, Combination, Normal |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✓ | ✓ |
| Fungal-acne safe | ✓ | ✗ |
| US stock | ✓ | ✓ |
Our read: NEOGEN Dermalogy Real Niacinamide 15% Serum carries the stronger evidence grade (A); Cos De BAHA Azelaic Acid 10% 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.