COSRX The Niacinamide 15 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.

COSRX The Niacinamide 15 Serum
COSRXThe Niacinamide 15 SerumFull breakdown →
NEOGEN Dermalogy Real Niacinamide 15% Serum
NEOGENDermalogy Real Niacinamide 15% SerumFull breakdown →
COSRX The Niacinamide 15 SerumNEOGEN Dermalogy Real Niacinamide 15% Serum
StepSerumSerum
Price$23$38
Best landed cost$21.25$38
Rating★ 4.4 (2,900)★ 4.5 (800)
Evidence gradeBA
Korea signal#18 serum · Olive Young Korea (seed)
Hero ingredientsNiacinamide, Zinc PCANiacinamide
Best forDark spots (PIH), Pores & OilDark spots (PIH), Pores & Oil, Acne
Skin typesOily, Combination, NormalOily, Combination, Normal
Texturelightlight
Tone noteAll tonesAll tones
Fragrance-free
Fungal-acne safe
US stock
Our read: NEOGEN Dermalogy Real Niacinamide 15% Serum carries the stronger evidence grade (A); COSRX The Niacinamide 15 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.