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COSRX | The Vitamin C 23 Serum


  • Serum
  • 20 g

High quality water based formula with high Vitamin C content (23%). The serum helps to protect the skin, prevent premature aging and fade pigment changes.

In stock


COSRX The Vitamin C 23 Serum

SerumCOSRX The Vitamin C 23 Serum


COSRX The Vitamin C 23 Serum is an anti-aging serum with 23% Vitamin C.

Firms and smooths the skin and protects from external irritants. With regular use the skin will look smoother and the skin tone will be more even. Enhances brighter skin with a youthful glow.

Stable, water based formula

The hypoallergenic and stable formula minimizes the mild irritation usually caused by Vitamin C. The water base of the serum absorbs quickly without leaving a greasy feeling.

Key ingredients:

  • Vitamin C shields the skin and the skincells from oxidative stress caused by UV-exposure. Oxidative stress caused by free radicals causes premature aging and pigment changes. Vitamin C also fades fine lines by enhancing collagen production.
  • Tokotrienol is a powerful Vitamin E and an antioxidant. Improves the elasticity of the skin.
  • Hyaluronic Acid delivers hydration deep into the skin. Makes the surface of the skin look hydrated and plump. Reduces fine lines.
  • Allantoin repairs and soothes the skin.

Who is it for?

The serum is ideal for skin with:

  • Dullness
  • Uneven skin tone
  • Dark spots and pigment changes

The serum is also ideal for preventing premature aging and pigment changes.

How to use:

Suitable for using in the daytime and in the nighttime. After cleansing and toning, apply 2-3 drops of. the serum to the face and neck. Avoid eye area. After absorption proceed with a moisturizer. Use minimum SPF 30 sun protection during the day with this serum.

It’s not recommended to use exfoliating or retinol products at the same time with the vitamin C serum to avoid potential skin irritation. You can use the Vitamin C serum during the daytime and other actives during the nighttime or rotate the products on different nights.

For the stability of the formula, store the bottle hidden from sunlight.


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


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COSRX The Vitamin C 23 Serum
COSRX | The Vitamin C 23 Serum