Compare Products: The Niacinamide 15 Serum vs Mela B3 Serum
Who It's Designed For
- Oily and acne-prone skin seeking serious oil control
- Post-acne marks and hyperpigmentation
- Enlarged pores and textured skin
- Users ready to step up from 10% to higher-strength niacinamide
- Those who prefer minimal-ingredient formulas
- Those with stubborn hyperpigmentation including sunspots, age spots, and post-acne marks
- Users seeking dermatologist-backed, clinically tested brightening products
- People who want an alternative mechanism to vitamin C or hydroquinone
- All skin tones; formulated to work without affecting natural skin tone
- Sensitive skin types who need gentle but effective brightening
Key Ingredients
Niacinamide (15%), Acetyl Glucosamine (2%), Zinc PCA (1%), Allantoin (0.1%)
Niacinamide (10%), Melasyl (2-Mercaptonicotinoyl Glycine), Sodium Hyaluronate, LHA (Capryloyl Salicylic Acid)
Product Composition
26% similarity (9 ingredients in common)
Only in COSRX (7)▾
Only in La Roche Posay (18)▾
User Feedback Patterns
Users consistently report significant reduction in daytime oil and shine. Many describe it as the best niacinamide serum they have tried for sebum control.
Unlike some high-concentration serums, this absorbs quickly without tackiness or residue. Layers well under other products.
The 20ml size (vs. 30ml standard) is a common gripe, especially given the price point.
Users report visible pore improvement around the 3-4 week mark with consistent twice-daily use.
Users frequently report fading of post-inflammatory hyperpigmentation from acne. Often noted as more effective than previous vitamin C serums.
Despite fragrance, many sensitive skin users report no irritation. Users with rosacea have noted tolerance.
Users report seeing changes over weeks to months. Not overnight results, but consistent improvement with regular use.
Lightweight serum absorbs quickly without greasiness. Layers well under sunscreen and makeup.
Some users with stubborn melasma or very dark spots report only modest improvement. Works better on newer or less severe pigmentation.
Which Should You Buy?
COSRX The Niacinamide 15 Serum offers great value at a lower price point. La Roche Posay Mela B3 Serum may be worth the premium if you want Niacinamide (10%).