Compare Products: The Niacinamide 15 Serum vs Ascorbyl Glucoside Solution 12%
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
- Vitamin C beginners who want a low-irritation starting point
- Sensitive skin types who cannot tolerate L-ascorbic acid
- Those who want a stable vitamin C that will not oxidize in the bottle
- Budget-conscious shoppers seeking a no-frills vitamin C serum
- Users who prefer ultra-minimalist ingredient lists
Key Ingredients
Niacinamide (15%), Acetyl Glucosamine (2%), Zinc PCA (1%), Allantoin (0.1%)
12% Ascorbyl Glucoside
Product Composition
21% similarity (5 ingredients in common)
Only in COSRX (11)▾
Only in The Ordinary (8)▾
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.
The most common positive feedback is that this product causes no irritation. Users with sensitive skin, rosacea-prone skin, and vitamin C beginners praise its gentleness.
Users who use it consistently for 8+ weeks report gradual brightening and more even skin tone. Results are subtle rather than dramatic.
Users coming from L-ascorbic acid serums or expecting fast results find the effects underwhelming. Several reviewers switched to more potent vitamin C products.
The thin, watery texture layers well under other products. No stickiness, pilling, or interference with subsequent skincare or makeup steps.
Which Should You Buy?
The Ordinary Ascorbyl Glucoside Solution 12% offers great value at a lower price point. COSRX The Niacinamide 15 Serum may be worth the premium if you want Niacinamide (15%).