Compare Products: C15 Super Booster vs SuperSolutions 20% Niacinamide Serum
Who It's Designed For
- Those seeking a CE Ferulic serum with added peptide benefits
- Users who want collagen stimulation from both vitamin C and peptides
- People who prefer mixing a vitamin C booster into their existing products
- Prestige skincare shoppers who want the formula at Sephora
- Users comfortable with 15% L-ascorbic acid concentration
- Very oily skin seeking maximum oil control
- Stubborn enlarged pores unresponsive to lower niacinamide concentrations
- Users who have tolerated 10-15% niacinamide and want to increase strength
- Budget-conscious users wanting clinical-strength actives
- Those seeking exfoliating effects (20% niacinamide has mild exfoliating properties)
Key Ingredients
15% L-Ascorbic Acid, Ferulic Acid, Tocopherol (Vitamin E), Peptides (Tridecapeptide-1, Palmitoyl Tripeptide-5), Sodium Hyaluronate
Niacinamide (20%), Zinc PCA (0.5%), Squalane (3%)
Product Composition
20% similarity (7 ingredients in common)
Only in Paula's Choice (19)▾
Only in The Inkey List (9)▾
User Feedback Patterns
Users consistently report visible brightening and improved skin tone within 2-4 weeks. The 15% concentration is effective for most users.
At $55 for 20ml, this is one of the priciest vitamin C serums relative to volume. Users note the small bottle size is a drawback for daily full-face use.
Multiple reviewers report receiving bottles that appear already oxidized (yellow or orange). This is a recurring complaint that the brand has acknowledged.
The booster format is praised for flexibility. Users mix it with moisturizer, sunscreen, or other serums without issues.
Users with very oily skin consistently report this as one of the most effective oil-control products they have tried. Many note all-day mattifying effect.
Despite the 20% concentration, most users report no irritation. However, patch testing is frequently mentioned as important for first-time users.
Users who found The Ordinary's 10% niacinamide too weak or pilling-prone often prefer this. The gel texture absorbs cleanly.
Some users report a white film if they apply too much. The brand addresses this: use less product and follow immediately with moisturizer.
Which Should You Buy?
The Inkey List SuperSolutions 20% Niacinamide Serum offers great value at a lower price point. Paula's Choice C15 Super Booster may be worth the premium if you want 15% L-Ascorbic Acid.