Compare Products: Azelaic Acid 10 Serum vs C15 Super Booster
Who It's Designed For
- Those dealing with redness or rosacea-prone skin
- Users targeting post-inflammatory hyperpigmentation
- Acne-prone skin seeking antibacterial and anti-inflammatory benefits
- People looking for a non-irritating alternative to AHA/BHA exfoliation
- Those with fungal acne (formula is fungal acne safe)
- Users wanting azelaic acid with added barrier support
- 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
10% Azelaic Acid, Niacinamide, Panthenol, Allantoin
15% L-Ascorbic Acid, Ferulic Acid, Tocopherol (Vitamin E), Peptides (Tridecapeptide-1, Palmitoyl Tripeptide-5), Sodium Hyaluronate
Product Composition
26% similarity (12 ingredients in common)
Only in Anua (21)▾
Only in Paula's Choice (14)▾
User Feedback Patterns
Users with rosacea-prone skin report visible redness reduction within 2-4 weeks. This is the most consistently praised benefit.
Multiple reviewers compare this favorably to The Ordinary's gritty suspension texture. The gel-cream formula absorbs smoothly.
Many users report mild tingling or stinging during the first 1-2 weeks. This typically subsides as skin adjusts. The penetration enhancer likely contributes to this sensation.
Users targeting dark spots note gradual improvement over 4-8 weeks. Results are described as steady rather than dramatic.
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?
Anua Azelaic Acid 10 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.