Pay in installments of $6.71 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
COSRX The Vitamin C 23 Serum 20gCOSRX The Vitamin C 23 Serum COSRX The Vitamin C 23 Serum is for people who want to brighten their skin tone and have a more even look. The COSRX The Vitamin C 23 Serum is a highly concentrated serum that contains pure vitamin C to help make skin appear clearer and smoother. Why We Recommend This Product The product comes in a 20g bottle. It contains 23% pure vitamin C, also known as ascorbic acid. It includes ingredients like Super Vitamin E and
COSRX The Vitamin C 23 Serum
COSRX The Vitamin C 23 Serum is for people who want to brighten their skin tone and have a more even look. The COSRX The Vitamin C 23 Serum is a highly concentrated serum that contains pure vitamin C to help make skin appear clearer and smoother.
Why We Recommend This Product
- The product comes in a 20g bottle.
- It contains 23% pure vitamin C, also known as ascorbic acid.
- It includes ingredients like Super Vitamin E and hyaluronic acid.
- The serum has a yellowish colour and a lightweight feel.
- It requires storage in the refrigerator to keep it fresh.
- The product should be used within two months after opening.
- It has a two-layer formula that you need to shake before using.
- The packaging includes a separate dropper to use for the first time.
The COSRX The Vitamin C 23 Serum is a powerful serum that helps to improve the look of skin. The formula combines 23% pure vitamin C with other ingredients. It has a lightweight texture that feels like an oil. This helps the vitamin C stay fresh. When you first get the COSRX The Vitamin C 23 Serum, you should switch out the cap with the included dropper.
The serum contains Super Vitamin E, which is a powerful antioxidant. The addition of hyaluronic acid provides moisture. It is important to store the COSRX The Vitamin C 23 Serum in a cool, dark place. The refrigerator is best for this. This helps stop the vitamin C from changing colour or losing its power. Because this product has a high amount of vitamin C, it is a good option for people who have used vitamin C products before.
When you use the COSRX The Vitamin C 23 Serum in the morning, always follow it with sunscreen. This helps to protect your skin. The serum should be used in your skincare routine after washing your face and toning. Only a few drops are needed for your whole face.
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, Butylene Glycol, 1,2-Hexanediol.
Directions
Shake lightly once or twice before use. Apply two to three drops onto the face and massage gently into the skin.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.9 ★★★★★
Based on 18 reviews
Sort
Product Reviews
★★★★★ 5
Extended Warranty is worth it.
So glad I took out a three year warranty, my Shark Steam Mop stopped steaming.
Asurion refunded me with Amazon credit.
Thank you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 4
Ease of handling
Initially when I filed the claim online, I was erroneously informed to contact the manufacturer because I was still under their warranty. I learned that I was not. It’s for this reason they got 4 stars instead of 5.
I had to call and explain to Assurion. Once I did that they honored the extended warranty with no complications. I just had to return the defective device to them, they provided all prepaid UPS slip and I took it to UPS. They sent an Amazon gift card (via email) less than 48 hours after my UPS drop off. I enjoyed the ease of everything. Just make sure you call instead of handling the claim online. A person is always better.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2025
★★★★★ 5
Great protection plan service
My vacuum stopped holding a full charge after a little over a year, so I submitted a claim to Asurion. They immediately emailed me back with a gift card to cover the cost of replacing the vacuum. I was able to find an even more expensive vacuum that was on sale, so I'm very pleased with Asurion's protection plan.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
★★★★★ 5
Worked great!
Got my refund in minutes!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 5
Refunding/giftcards. Thank you
They were nice enough to replace my vacuum even though the battery was defective. They usually don't cover batteries. So it was a great. But they were nice enough to give me a gift card for the whole amount. Thanks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
recommand products
BattleTech - Miniature Force Pack: Clan Heavy Star
27.23
Hyundai Genuine (Mobis) Part No.: 9216039A00 Part Name CONTR ASSY-H/LAMP T/SIGNAL
124.00
CHERRY BLOSSOM SMOCKED TOWELLING HALTER DRESS
55.00
Hyundai Genuine (Mobis) Part No.: 9182102000 Part Name GROMMET-FRONT DOOR
125.50
Hyundai Genuine (Mobis) Part No.: 81755D3000TRY Part Name COVER-POWER TAIL GAGE
125.50