Advanced The Vitamin C 23 Serum
COSRX
A potent serum containing 23% pure vitamin C (ascorbic acid) to brighten skin, fade hyperpigmentation, and boost collagen production. Enhanced with niacinamide, glutathione, and hyaluronic acid for additional brightening and hydration benefits.
Key Ingredients
Humectant and solvent for ingredient delivery
Silicone that creates smooth texture and protective barrier
+ 15 more ingredients
Ingredient Effectiveness Data
Based on aggregated user reports across Seoul Sister's community
More Korean Serums
Frequently Asked Questions
What are the key ingredients in Advanced The Vitamin C 23 Serum?
The key active ingredients in Advanced The Vitamin C 23 Serum by COSRX include Vitamin C (Potent antioxidant and brightening agent), Ethyl Ascorbic Acid (Stable vitamin C derivative for brightening and antioxidant protection), Caffeine (Antioxidant and anti-inflammatory, reduces puffiness), Adenosine (anti-aging, firming, soothing), N-Acetyl Glucosamine (Exfoliant and skin brightener, supports hyaluronic acid). Based on Seoul Sister's analysis of 56+ user reports, key ingredients show 100% effectiveness for sensitivity in sensitive skin types. Seoul Sister tracks ingredient effectiveness across 5,800+ K-beauty products to provide data-backed recommendations.
Is Advanced The Vitamin C 23 Serum good for sensitive skin?
Advanced The Vitamin C 23 Serum is a Korean serum by COSRX. Sensitive skin compatibility depends on individual triggers and allergies. Seoul Sister's AI advisor Yuri analyzes all 20 ingredients against your specific skin type, concerns, and known allergens to provide a personalized compatibility score. Common irritant ingredients like fragrance, alcohol denat, and essential oils are flagged automatically.
Is Advanced The Vitamin C 23 Serum good for oily skin?
For oily skin, the key factors in evaluating Advanced The Vitamin C 23 Serum are comedogenic ingredient ratings, oil content, and finish type. This serum contains 9 active ingredients. Seoul Sister's database cross-references each ingredient's comedogenic rating (0-5 scale) against your skin type to identify potential pore-clogging risks. Subscribe for a personalized oily skin compatibility analysis.
How much does Advanced The Vitamin C 23 Serum cost?
Advanced The Vitamin C 23 Serum by COSRX starts from $46.40 USD for 20 g. Seoul Sister Pro members compare prices across 6+ authorized retailers including Olive Young, Soko Glam, and YesStyle to find the best deal, with automatic price drop alerts.
Where to buy Advanced The Vitamin C 23 Serum?
Advanced The Vitamin C 23 Serum by COSRX is available from authorized K-beauty retailers including Olive Young Global, Soko Glam, YesStyle, and Amazon. Prices start from $46.40 USD. Seoul Sister verifies retailer authenticity and tracks counterfeit indicators to help you buy genuine Korean skincare products.