SKU: 7813571995

COSRX The Vitamin C 23 Serum 20ml

Sale price$14.85 Regular price$16.50
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

COSRX The Vitamin C 23 Serum 20mlProduct Description: Enhance your skin's elasticity with 23% pure vitamin C. This serum, featuring 23% high concentration stabilized pure vitamin C, improves skin tone, reduces wrinkles, and targets dull and uneven skin as a powerful vitamin C booster. To prevent oxidation, the serum is divided into two layers, with oil on top for a moisturizing finish. Product Benefits: Improves skin elasticity Evens out skin tone and reduces dark spots Brightens the

Product Description: Enhance your skin's elasticity with 23% pure vitamin C.

This serum, featuring 23% high-concentration stabilized pure vitamin C, improves skin tone, reduces wrinkles, and targets dull and uneven skin as a powerful vitamin C booster. To prevent oxidation, the serum is divided into two layers, with oil on top for a moisturizing finish.

Product Benefits:

  • Improves skin elasticity

  • Evens out skin tone and reduces dark spots

  • Brightens the skin

  • Combats signs of aging

Skin Type:

  • Intensive care for uneven skin tone and hyperpigmentation

Size: 20 ml

Usage: Morning and evening

  1. Wash your face

  2. Lightly shake the bottle one to two times from side to side.

  3. Apply a few drops to the skin.

  4. Gently massage the serum in with your fingertips, starting from the center of the face and working outward.

  5. When used in the morning, always follow up with sunscreen SPF 30 or higher.

Storage:

  • Store in the refrigerator (3–10°C)

  • Use immediately after purchase and store upright after opening

  • Recommended to be used within 2 months of opening to maintain active ingredients

Important:

  • Experienced vitamin C users

  • Attach the included dropper upon first use.

  • The serum is highly concentrated but can be used both morning and evening.

  • Avoid contact with the eye and mouth areas.

  • Recommended not to be used in conjunction with other acids such as AHA, BHA, retinol, or other strong active ingredients to avoid irritation.

Patch Test Always perform a Patch Test to check if your skin may react negatively to a new skincare product.

  1. Apply a small amount of the product to the skin, for example, behind the ear or on the inside of the wrist.

  2. Leave the product on for at least 24 hours without washing it off.

  3. Regularly check the area for signs of redness, itching, swelling, or other reactions. If a negative reaction occurs, discontinue use immediately and consult a doctor if necessary.

  4. If the skin feels normal and shows no reactions, you can start using the product as usual.

Precautions

  • Do not use the product if you are allergic to any of the ingredients.

  • The product is only for external use. Do not ingest.

  • Keep out of reach of children and animals.

  • Avoid contact with the eyes. In case of contact, rinse thoroughly with water and consult a doctor if necessary.

  • Do not use on damaged or irritated skin.

  • If signs of a negative reaction from the product appear, such as redness, itching, swelling, or other reactions, discontinue use immediately and consult a doctor if necessary.

Ingredients

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

Please note that ingredients and content may change over time. This means that the ingredients listed on our website may differ from those actually in the product. Always read the ingredients on the package before use. If you have any questions or concerns, please contact our customer service.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7813571995

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J
Verified Purchase
JJ Fording
Houston, US
★★★★★ 5
Balls
Size: Medium
My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
S
Verified Purchase
Steve just Steve
Louisville, US
★★★★★ 5
Nice set of balls
Size: Medium
The squeaker quickly became my dog’s favorite ball and has replaced the fuzzy tennis balls. My dog is a nonstop fetcher and these chuck it balls are durable and fun.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
C
Verified Purchase
Claudia Garfield
New York, US
★★★★★ 5
Perfect ball
Size: Medium
Our dog loves these!
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Reviewed in the United States on May 26, 2026
T
Verified Purchase
Timothy john starkweather
West Palm Beach, US
★★★★★ 4
Soild
Size: Medium
The orange and blue ball is perfect. Once start taken because the because the blue noisy one was a little to easy for my dog to start ripping pieces off. Will say most toys do not survive his chewing.
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Reviewed in the United States on January 24, 2026
C
Verified Purchase
Christy D.
West Palm Beach, US
★★★★★ 5
Aggressive chewer who loves fetch approved!!
Size: Medium, Size: Medium
I highly recommend the Chuck-It brand in general, especially for dogs with an aggressive bite. These balls are awesome and are the most durable balls I’ve bought for my 50 lbs lab mix. He has not been able to break one of them yet and we’ve had a few of the squeaky balls for months. They are a bit pricey but worth it. The one in the pic has been used for months, lives outside and you can see it’s still in great shape.
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Reviewed in the United States on June 22, 2025

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