COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Brightening & Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care
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Availability:
In Stock.
Arrives
Monday, Jun 16
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Features
- A lightweight Vitamin C Booster Serum. Fight early signs of aging and improve the skin's radiance with the lightweight and hydrating Vitamin C serum.
- Patch Test Recommended: This serum consists of highly concentrated pure Vitamin C. A patch test on the body is recommended before using it on the face.
- Dermatological Ingredients: Pure Vitamin C (Ascorbic acid) helps achieve youthful glowing skin. Super Vitamin E (Tocotrienol) helps fight signs of aging and slows down skin damage. Hyaluronic acid delivers rich moisture deep into the skin and helps reduce the appearance of fine lines and wrinkles.
- How to Use: Shake 1-2 times before use and apply 2-3 drops once or twice daily. For daytime wear, follow up with SPF 30+ sunscreen. Can be applied under the eye area; avoid direct eye contact. Store in the fridge to prevent oxidation.
- Patch Test Recommended: Perform a patch test on the body before using on the face. Proceed to using on the face if no irritation occurs in 24 hours. Consult with your doctor immediately if irritation occurs.
Skin Type: Sensitive
Product Benefits: Brightening
Use for: Face
Scent: Unscented
Special Ingredients: hyaluronic_acid
Product Dimensions : 1.73 x 2.56 x 4.09 inches; 0.71 ounces
Item model number : SC40TR03
Manufacturer : Cosrx
Country of Origin : Korea, Republic of
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 16
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
so it doesn't irritate sensitive skin (like mine). Unfortunately, unscented vitamin c smells like hotdog water 💔
Reviewed in the United States on June 11, 2025 by earleebyrd
I’ve seen a lot of improvement in my skins texture and tone over the past 3 months. My skin Is much softer and my freckles and dark spots have become less noticeable. The serum is oily and spreads easily. It does have somewhat of an odor (like bread). I think for the price it’s great product.
Reviewed in the United States on May 7, 2025 by B
I've been a huge fan of Cosrx products. I originally had used the lower strength of vitamin c and upgraded to this one a few months back. I feel that it does work in terms of discoloration, but for some reason this one makes me break out more than other vitamin c products I've used. I'm going to finish up what I have left of this bottle but I think I'll go back to the lower strength. My only complaint with the Cosrx vitamin c is how small the bottles are. It could be because vitamin c doesn't last long in terms of potency once opened, but it's a bit pricey for such a small bottle. You definitely have to keep it in the fridge and the smell is strange and not very pleasant but goes away shortly after application. I have not noticed any stinging or irritation from this higher strength vitamin c, but like I said, I have noticed acne break outs happening a bit more than before. My recommendation...give it a shot if you've already used the lower strength and feel you need more potency, but beware of potential break outs.
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Reviewed in the United States on June 8, 2025 by Nia
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Reviewed in the United States on June 10, 2025 by Jenny Nham
After showering on a Friday evening, I applied the serum to my face. The smell was absolutely disgusting, but I was prepared for that having read the reviews. I had no negative skin reactions. A couple of hours later I started to get a headache. I took some ibuprofen, put the heating pad on my head, and went to sleep. I woke up at 3am with a terrible headache and I felt nauseous. I want to note that I get frequent migraines and that this was not a migraine headache. It was a painful tightness all around the top of my head. Also, I realized that the heat from the heating pad was reactivating the smell of the serum on my face, which was really gross. When I finally tried to get up and move around at 7am it was awful. I felt like I had the stomach flu. Sweating, shaking, nauseous. And then I threw up. I really did think I was sick and didn’t even consider the serum until a few hours later. I talked to my sister and mentioned my thoughts about the serum. She suggested that I take a long hot shower to try and get it all off of me and to change my bedding. So I did, and by the end of Saturday I was feeling not 100% but so much better. I haven’t seen any other reviews that mention this type of reaction. I tried googling it too and found nothing, so obviously this could be some kind of weird coincidence that I got sick for a short time while trying to use this product. Either way, I’m too scared to try it again. The smell alone might make me sick anyway. Good luck!
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Reviewed in the United States on October 23, 2024 by Kate
Truth be told this is my 3rd purchased product from this skin line. I really enjoyed the other 2 product enough to purchase then for others as gifts or purchased a second round for myself! Sadly😞this product isn't that enjoyable. I have been wearing hyaluronic acid and vit C for years separately. So this seemed like I could simplify my routine on certain days. The product goes on fine... then stays sticky even after absorbed into your skin. My hair, random fuzz, and even my hand stick to my face after absorption. (Not ok with me!!) So with that it's not going to be purchases again. I will use it, but felt this sticky factor needed to be mentioned. I will say i really likes the fact they lid has a seal you have to break upon its initial opening. So I knew the content was un- tainted!
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Reviewed in the United States on March 17, 2025 by AlyssaK
First time with this brand, but using Vit C serum for years. So far one of my favorites in the range of price. Smells uncomfortable fishy but that is the Vit C normal smell, after some seconds over the skin the smell is gone, and personally prefer this than any extra essence. The oil is pretty thin and absorbs immediately. Haven't had any reactions but I have quite of time with this VitC concentration. I like how my skin looks, give me a glossy renewed look every morning. Any result with dark spots or fine lines, but I realized that is normal aging and nothing to do with it lol, anyway my skin looks healthy and younger for my age. Totally happy with this brand in my second week of use. Update: one month of use and still love it!
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Reviewed in the United States on March 27, 2025 by DIANA MARHER
My skin feels amazing, used it just a couple of times and I can already see a difference. The only thing I did not like was the smells, smells awful but seems to be working great so far.
Reviewed in the United States on May 10, 2025 by Kai Bishop