Cos De BAHA Niacinamide 20% 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.

Cos De BAHA Niacinamide 20% Serum
Cos De BAHANiacinamide 20% SerumFull breakdown →
NEOGEN Dermalogy Real Niacinamide 15% Serum
NEOGENDermalogy Real Niacinamide 15% SerumFull breakdown →
Cos De BAHA Niacinamide 20% SerumNEOGEN Dermalogy Real Niacinamide 15% Serum
StepSerumSerum
Price$15$38
Best landed cost$15$38
Rating★ 4.3 (3,100)★ 4.5 (800)
Evidence gradeBA
Korea signal#48 serum · Olive Young Korea (seed)
Hero ingredientsNiacinamide, Zinc PCANiacinamide
Best forPores & Oil, Dark spots (PIH)Dark 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); 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.