NEOGEN Dermalogy Real Niacinamide 15% Serum vs Cos De BAHA 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.

NEOGEN — Dermalogy Real Niacinamide 15% SerumFull breakdown →

Cos De BAHA — Niacinamide 20% SerumFull breakdown →
| NEOGEN Dermalogy Real Niacinamide 15% Serum | Cos De BAHA Niacinamide 20% Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $38 | $15 |
| Best landed cost | $38 | $15 |
| Rating | ★ 4.5 (800) | ★ 4.3 (3,100) |
| Evidence grade | A | B |
| Korea signal | — | #48 serum · Olive Young Korea (seed) |
| Hero ingredients | Niacinamide | Niacinamide, Zinc PCA |
| Best for | Dark spots (PIH), Pores & Oil, Acne | Pores & Oil, Dark spots (PIH) |
| 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: NEOGEN Dermalogy Real Niacinamide 15% Serum carries the stronger evidence grade (A); Cos De BAHA Niacinamide 20% 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.