COSRX BHA Blackhead Power Liquid 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.

COSRX — BHA Blackhead Power LiquidFull breakdown →

NEOGEN — Dermalogy Real Niacinamide 15% SerumFull breakdown →
| COSRX BHA Blackhead Power Liquid | NEOGEN Dermalogy Real Niacinamide 15% Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $25 | $38 |
| Best landed cost | $25 | $43.99 |
| Rating | ★ 4.5 (5,600) | ★ 4.5 (800) |
| Evidence grade | A | A |
| Korea signal | #9 serum · Olive Young Korea | — |
| Hero ingredients | BHA (salicylic), Niacinamide | Niacinamide |
| Best for | Pores & Oil, Acne, Texture | Dark spots (PIH), Pores & Oil, Acne |
| 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 (A) — so let fit decide: check the skin-type rows above, and if both fit, COSRX BHA Blackhead Power Liquid is the cheaper landed cost over NEOGEN Dermalogy Real 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.