Compare Products: Vitamin Illuminating Serum vs C15 Super Booster
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 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
Key Ingredients
40% Acerola Fruit Water, 4% Niacinamide, 2% Arbutin, 5 types of Ceramides, 8 types of Hyaluronic Acid
15% L-Ascorbic Acid, Ferulic Acid, Tocopherol (Vitamin E), Peptides (Tridecapeptide-1, Palmitoyl Tripeptide-5), Sodium Hyaluronate
Product Composition
24% similarity (14 ingredients in common)
Only in EQQUALBERRY (31)▾
Only in Paula's Choice (13)▾
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.
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.
Which Should You Buy?
EQQUALBERRY Vitamin Illuminating 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.