COSRX Pure Vitamin C 23% Serum(0.7oz)
A highly concentrated vitamin C booster serum containing 23% pure L-ascorbic acid, designed to brighten skin tone, fade dark spots and pigmentation, and improve overall radiance and clarity. The formula also includes vitamin E derivatives and moisturizing agents to support the skin barrier and reduce irritation.
Product Description +
• COSRX is a science-based Korean skincare brand dedicated to creating effective, minimalist formulas that focus on skin health. Guided by the philosophy “Expecting Tomorrow,” COSRX designs products that build confidence through real results.
• Skin Types: Suitable for normal, combination, dry, and partly sensitive skin (patch test recommended for highly sensitive skin)
• Skin Concerns: dullness, uneven tone, pigmentation / dark spots, early signs of aging, loss of radiance
• Item Form: Serum / liquid texture
• Package Description: 20 mL bottle (approx. 0.67 fl oz)
Key Benefits +
Brightens skin and reduces dark spots / hyperpigmentation
Provides antioxidant protection and helps counteract signs of aging
Supports skin hydration and barrier resilience
Lightweight texture that absorbs well without heaviness
Formulated to minimize irritation despite the high concentration of vitamin C
Ingredients +
Water (Aqua), 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
How to Use +
After cleansing and toning, shake the bottle gently to mix.
Apply a few drops to the face, gently massage and pat for absorption.
Use in the morning and/or evening; when used in the morning, always follow with a broad-spectrum SPF 30+ sunscreen.
Because the vitamin C is highly active, the product is recommended to be used within 2 months of opening and stored away from heat/light to prevent oxidation.







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