Power-Brightening Pure Vitamin C Serum
COSRX’s Advanced The Vitamin C 23 Serum features a high strength 23% pure vitamin C with Super Vitamin E and Glutathione to target uneven skin tone, early signs of aging, and dullness. Ideal for experienced vitamin C users seeking visible brightening and firmer skin, it absorbs smoothly to leave the complexion more radiant, supple, and revitalized.
Size: 20ml / 0.67fl. oz
| Concern |
Suitable |
Key Benefit |
Key Ingredient |
| Dull & uneven tone |
Yes |
Brightens and evens tone |
Vitamin C (23%) |
| Dark spots & post-breakout marks |
Yes |
Helps dark spot care |
Vitamin C + Niacinamide |
| Fine lines & early aging |
Yes |
Early signs of aging care |
Vitamin C + Hyaluronic Acid |
| Dryness |
Yes |
Refines and smooths surface |
Vitamin C + Allantoin |
| Lack of radiance |
Yes |
Restores healthy glow |
Vitamin C + Super Vitamin E + Glutathione |
- After cleansing and toning, apply 2–3 drops to the entire face.
- Pat gently for better absorption.
- Follow with moisturizer and SPF during the day.
*Cautions*
As this product contains a high concentration of Vitamin C, we recommend avoiding use alongside Copper Peptide products, including our Blue Peptide Serum & Cream, as well as other high-concentration actives such as retinol. For best results, use them at different times of day (morning/evening) to optimize absorption and maximize the benefits of each product.
| Info |
Details |
| Volume |
20g |
| Key Ingredients |
Pure Vitamin C 23%, Super Vitamin E, Glutathione, Adenosine, Niacinamide(B3), Allantoin, Panthenol(B5), Hyaluronic Acid |
| Clinically Proven |
Yes (Non comedogenic Test, Sensitive skin irritation test, Primary skin irritation test) |
| Expiration |
24 months from the date of manufacture or 2 months after opening |
| Allergens |
Hypoallergenic tested |
| Feature |
Vitamin C 23 Serum |
Typical Vitamin C Serum |
| Vitamin C strength |
23% pure vitamin C + Super Vitamin E + Glutathione |
Lower % or less potent formula |
| Target concerns |
Brightening dull skin, reducing wrinkles, improving elasticity |
Only address one or two concerns |
| Texture / layering |
Layers of oil + serum, smooth finish |
Heavier or single phase |
| Usage caution / suitability |
Requires care (storage, usage) due to high potency |
More everyday/basic formula |
Aqua/Water, Ascorbic Acid(23%), Butylene Glycol, Dimethicone, Panthenol, 3-O-Ethyl Ascorbic Acid, Squalane, Sodium Hydroxide, Caffeine, Sodium Hyaluronate, Sodium Metaphosphate, Adenosine, Acetyl Glucosamine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Arginine, Niacinamide, Pentylene Glycol, Glutathione, Helianthus Annuus (Sunflower) Seed Oil, Methyl Trimethicone, Carthamus Tinctorius (Safflower) Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa (Carrot) Root Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Beta-Carotene
