The Vitamin C 23 Serum

COSRX The Vitamin C 23 Serum is formulated with 23% pure, stabilized vitamin C to enhance skin elasticity, improve skin tone, and reduce the appearance of wrinkles. Designed as a potent Vitamin C booster, this highly concentrated serum targets dull and rough skin, delivering noticeable results. The unique two-layer formula includes a layer of oil atop the serum to help prevent oxidation and provide a moisturizing finish. Ideal for those experienced with Vitamin C, this serum offers powerful results in a short time, making it perfect for those seeking an intensive skincare treatment. The serum effectively addresses concerns such as hyperpigmentation, signs of aging, dullness, uneven skin tone, and dark spots. Its dual-layered texture blends smoothly into the skin, leaving it supple and radiant. The serum has a yellowish tint, a natural indication of its pure vitamin C and oil content. Keep the serum refrigerated (3~10°C) and use it immediately after purchase. Once opened, store the bottle upright in the refrigerator. Important Information: Attach the enclosed dropper before the first use. It’s best to use the serum within 2 months after opening to preserve the effectiveness of its active ingredients. This highly concentrated serum can be used both in the morning and evening, not just at night. If using in the morning, always apply sunscreen with at least SPF 30 afterward.

• How to use
  • After cleansing, during the serum step, gently shake the bottle side to side once or twice, then apply a few drops to your skin. Use your fingertips to massage the serum gently, starting from the center of your face and working outward.

• Full ingredients list
  • Water, Ascorbic Acid(23%), Propanediol, Dimethicone, Tromethamine, Panthenol, Ethyl Ascorbyl Ether, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Acetyl Glucosamine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Butylene Glycol, Arginine, Niacinamide, Pentylene Glycol, Alcohol Denat., Helianthus Annuus (Sunflower) Seed Oil, Glycyrrhiza Glabra (Licorice) Root Extract, Methyl Trimethicone, Carthamus Tinctorius (Safflower) Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa (Carrot) Root Extract, Beta-Carotene
  • Ingredients subject to change at manufacturer's discretion. For the most complete and up-to-date list of ingredients, please refer to product packaging.