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Summary
Highlights
The Vitamin C 23 Serum with Super Vitamin E + Hyaluronic Acid from COSRX is a highly concentrated serum that fades acne scars and brightens the complexion to revitalize dull and dry skin. Feel the benefits of Vitamin C without irritation.
Benefits
- 23% Vitamin C : Fades acne scars and brightens complexion by blocking the synthesis of melanin caused by UV exposure
- Tocotrienol : Super vitamin E, boasts up to 50 times greater antioxidizing effect than tocopherol
- Sodium Hyaluronate : Strong moisture retention properties to maintain hydration
- Allantoin : Soothes and relieves irritation
Item 2607694
After cleansing, during the serum phase, shake the bottle lightly once or twice from side to side and apply a few drops to the skin. Use fingertips to gently massage and absorb the serum, starting from the inside of the face working towards the edges. For the first use, attach the enclosed dropper in the product package. Recommended to use within 2 months of opening due to active ingredient protection. Highly concentrated serum should only be used in the evening? NO! This serum can be used in the morning and/or afternoon. If applied in the morning, be sure to use with a SPF of 30 or higher.
Precautions: Gas can be generated due to the nature of vitamin C. When opening the cap, it may make a sound. With a specially designed cap to seal vitamin C, it can be safely stored by controlling the gas generated inside the container. If you shake it before opening, it may overflow, so shake lightly, from left to right after fastening the pipette. Extra room in the container has been secured for safe use. Vitamin C products are recommended to be used within 2 months of opening due to easy discoloration caused by oxidation. Keep it away from high temperatures and direct sunlight. It is recommended to be stored in the refrigerator when it is not being used every day after fastening the pipette. Keeping it refrigerated can help maintain the freshness of the vitamin C. KEEP REFRIGERATED (3~10C) *Please use immediately after purchase and store upright in refrigerator once opened.
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.
This brand is excluded from most Ulta Beauty coupons.
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Questions
Ask a QuestionQ&A
Showing 5 out of 38 Questions
- Q
Shelf life? A few months after purchase, the product is very orange, no bad odor and the texture is the same. Is it safe to use?
- Asked by LF
- Official Answer By COSRX - Brand EngageThe shelf life of the Vitamin C 23 Serum is two months after opening. It's common for Vitamin C products to change color to a more orange hue over time due to oxidation. To maintain the potency of the serum, please store it in the refrigerator, and make sure to tightly close the cap after each use. If the color is already dark brown when it is opened, please contact customer support for an exchange.Was this answer helpful to you
- Q
Can you combine vitamins c 23 with retinol product?
- Asked by Ema
- Official Answer By COSRX - Brand EngageWhile Vitamin C and retinol can both be beneficial for your skin, they are best used at different times in your skincare routine to minimize the risk of irritation. We recommend applying Vitamin C in the morning and retinol in the evening. Always remember to follow up with sunscreen during the day when using Vitamin C and retinol in your routine.Was this answer helpful to you
- Q
Is this supposed to smell like tuna/fish? I picked this up today, it was unopened.
- Asked by Jodie
- Official Answer By COSRX - Brand EngageThe Vitamin C 23 Serum is formulated with pure vitamin C, which can sometimes have a unique scent due to its active ingredients. We recommend storing the vitamin C serum in the refrigerator to keep it fresh and this will help the scent fade a little.Was this answer helpful to you
- Q
How many oz is this
- Asked by Sherri
- Official Answer By COSRX - Brand Engage0.67 fl.oz.Was this answer helpful to you
- Q
After I apply it on my face, my face turns orange color. When I remove it with micellar water and cotton pad at night, the cotton pad also shows orange color. Is there something wrong? I am Asian and I have light fair skin. I just opened it a couple days ago and have kept it in the fridge since opened. So it is not expired and the liquid is light yellow color. Should I stop using it? I don't want my face turning orange. Have used other brand vitamin C serum before for years. Never have this problem.
- Asked by Lisa
- Official Answer By COSRX - Brand EngageThis may look like temporary staining on the surface of your skin, but don’t worry—it’s not permanent and will naturally fade over time. If your skin has a thicker outer layer, the effect might look a bit stronger. To reduce this, we recommend: Using a smaller amount of the product Applying it after exfoliating Washing your face thoroughly after useWas this answer helpful to you
Reviews
Write A REVIEWReview Snapshot
by PowerReviews
Ratings Distribution
Skin Type
Most Helpful Positive Review
Great potent vitamin C
It works great. I prepared to buy, i purchased lower %'s of vitamin C and was building up my skin's strength to buy this. Idk the smell is not that bad to me, the smell dissipates when I use it. I'm in my 2nd month using this and I can already tell it's working better than alot of Vitamin C's I've t...
Most Helpful Critical Review
Decent enough product but the purge is bad
Received this for free from influenster and CosRX in exchange for my honest review. (Also wrote this review 6x because this website sucks) I wanted to love this so much! I have Combo skin with an oily t zone. No massive skin concerns outside of the early signs of aging at 30 and some uneven skin ton...
1351 results
Why does it smell like meat?
Seriously, it smells like old pot roast. The smell was so bad, i threw the rest if it out.
Smells Weird
I am on my second bottle of this serum and I'm not impressed. I gave it a second chance because I thought my first bottle was bad and it was a fluke maybe, but it's not. This is dark orange from jump like it's oxidized and it smells horrible. I don't see any difference while using it either. I had been using a different brand that had great results but the packaging was so awful I didn't want to mess with it anymore. I will be going back to that brand, this one is not for me.
Made a Difference!
Ordinarily I wouldn't go for a Vitamin C Serum over 20%, but decided to give this a try since it was on sale. Worked really well for my skin! No issues with stinging or irritation (the only vitamin c product that gave me a tingly sensation was Indeed Labs 22% and BeautyStat 20%), but I think my skin isn't as reactive or sensitive. This serum does have that "hotdog water/meaty" smell, so of scents bother you, this might not be the serum for you. However, if you don't mind the Vitamin C smell that comes with a lot Vitamin C Serums (that don't have added fragrances), this is worth a shot. I've been using this 2x a day for a few weeks and noticed my acne pigmentation fading a lot faster than before. Since I use this twice daily, I haven't been keeping it in the fridge and so far no issues with oxidation
Holy grail
I have perioral dermatitis and this has cleared it up to where I dont have to use prescription medication anymore. I have used t this daily am & pm for about 6 months now. I follow up with collagen and retinol serum and then facial oil and lotion. I always make sure to look when its on sale and stock up to last a couple of months. Hopefully, its never discontinued!! I'll be a forever customer. This stuff is magic!
Did not get to try it- bad seal
I bought this back in april to replace my other vitamin c oil that was running out. I went to grab it from my cabinet and the box was covered in serum at the top. Which is weird because it was never upside down, so it must've started evaporating. I did not open it yet so im guessing it had a bad seal. I have another product from this brand and love it.