Compare Products: Vitamin Illuminating Serum vs C E Ferulic with 15% L-Ascorbic Acid
Who It's Designed For
- Those looking to address uneven skin tone and dark spots
- Users who want vitamin C benefits without L-ascorbic acid irritation
- Sensitive skin types seeking a fragrance-free brightening serum
- People who prefer lightweight, non-sticky serum textures
- Those interested in barrier support alongside brightening actives
- K-beauty enthusiasts looking for a multi-functional serum
- Those who want the research-backed gold standard in vitamin C serums
- Users willing to pay premium pricing for clinical-grade formulation
- People seeking the specific patented CE Ferulic ratio (15%/1%/0.5%)
- Those whose dermatologists recommend medical-grade vitamin C
- Users looking for maximum photoprotection alongside sunscreen
Key Ingredients
40% Acerola Fruit Water, 4% Niacinamide, 2% Arbutin, 5 types of Ceramides, 8 types of Hyaluronic Acid
15% L-Ascorbic Acid, 1% Alpha Tocopherol (Vitamin E), 0.5% Ferulic Acid, Sodium Hyaluronate, Panthenol
Product Composition
22% similarity (11 ingredients in common)
Only in EQQUALBERRY (34)▾
Only in SkinCeuticals (6)▾
User Feedback Patterns
Users consistently praise the serum for being lightweight and non-sticky. Several reviewers specifically note it absorbs quickly, unlike typical vitamin C serums.
Many users report improved skin tone and reduced dark spots within 2 to 4 weeks of consistent use. The brand cites an Intertek study showing 57.49% melanin area reduction in one week, though the full study methodology is not publicly available.
At 30ml, several users note the bottle runs out quickly, especially with daily use on face, neck, and body as suggested by the brand.
Some users report minimal visible change after several weeks. Most negative reviews cite underwhelming brightening results rather than irritation or breakouts.
The most consistent praise across all platforms. Users report a noticeable glow, brighter skin, and reduced dullness within 2-3 weeks of daily morning use.
The metallic, acidic smell (commonly described as 'hot dog water') is mentioned in nearly every review. Most users tolerate it because of results; some find it unbearable.
Paying $182 for a serum that darkens within weeks is the primary complaint. Some users report receiving already-oxidized bottles from retailers.
Many users buy this specifically because their dermatologist recommended it. The medical-grade positioning provides confidence that cheaper alternatives may not.
Which Should You Buy?
EQQUALBERRY Vitamin Illuminating Serum offers great value at a lower price point. SkinCeuticals C E Ferulic with 15% L-Ascorbic Acid may be worth the premium if you want 15% L-Ascorbic Acid.