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Rating: 3.6Based on 96 reviews
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- Most helpful positiveThe post was made 11 monthsRating: 5 out of 5verified customer
The best I've ever tried!
This vitamin C serum has been a game changer for me! (I have 34-year-old combination skin that is sensitive.) This gives me so much glow, a more even skin tone, and not to mention it's very economical to use. Tiny minus for the smell, but it disappears very quickly thankfully. I'm now on my second bottle and will never stop buying it🤩 (NB! Remember that this serum should be stored in the fridge!) #lykoreview1 product in post The best I've ever tried!6471 views- The comment was made 9 monthsThe serum might stay a little better in the fridge, but it will definitely oxidize. So there's no point in keeping it in the fridge. The product is therefore only good for 2 months.1 likes
- Most helpful negativeThe post was made 9 monthsRating: 1 out of 5verified customer
Oxidizes quickly
After a few weeks, it has oxidized and turned completely brown and unusable.1 product in post Oxidizes quickly5597 views - The post was made 3 daysRating: 3 out of 5
Really good but poor packaging
Really good and effective in itself. I have bought it several times but it goes bad every time before I get to use it. I use the serum every morning but still it gets too old before I have used it up. A new airtight packaging would be nice. I would rather pay extra for packaging than throw away 1/4.47 views - The post was made 1 weekRating: 5 out of 5verified customer
Very satisfied
Very good, gave both radiance and evened out my hormonal pigments on both neck and face. Super satisfied1 product in post Very satisfied229 views - The post was made 2 weeks
COSRX Advanced The Vitamin C 23 Serum 20 ml
Hi! What is the difference between the old one that is no longer sold and the new one that has recently come out? I have oily skin and really large pores, does this vitamin C serum work for me? If not, which vitamin C serum would you recommend for me? I would be really grateful if you could recommend a good retinol, I have used retinol from corsx 0.1 but haven't noticed any difference at all!322 views- The user's roll: Farmaceut på Lyko. The comment was made 1 weekHi Parwaneh 😊 Thank you for your question✨ What I can find is that the new version of COSRX Vitamin C 23 Serum is primarily a repackaging with the same formula and high concentration, i.e., 23% vitamin C. The serum may work for you if you have oily skin and large pores, but keep in mind that it is quite strong, and some find it feels a bit "oily", especially if you already have oily skin as you mentioned. If your skin is sensitive, it can become irritating and needs to be gradually introduced. If you want something milder and more pore-friendly, a lighter vitamin C serum might be a better fit. Also, feel free to check out this one, which also has a lower concentration but is more fluid lyko.com/sv/cosrx/cosrx-the-vitamin-c-13-serum-20ml-0d80ff7b Regarding retinol: since you haven't noticed any effect from COSRX 0.1%, I would suggest trying The Ordinary Granactive Retinoid 2% Emulsion, which is mild but more effective for improving skin texture and pores. Never use retinol and vitamin C in the same routine; use vitamin C in the morning and retinol in the evening. Also, always gradually introduce retinol 1-2 evenings a week, and don't forget sunscreen during the day. I hope the answer can be helpful and that you have a super nice day🌟
- The user's roll: Lyko Creator. The post was made 1 monthRating: 4 out of 5verified customer
Supergood
I really love this serum! I use it in the morning before moisturizer and sunscreen! It gives me the perfect natural glow😍The only thing is that I think it runs out quickly, and it's a bit pricey... #lykoreview1 product in post Supergood442 views - The post was made 2 months
?
Why have they added palm oil to this serum? It usually tends to be more like a filler in lower quality products... so I wonder how COSRX has reasoned there, what are the benefits of palm oil instead of some other kind?1 product in post ?1013 views- The comment was made 2 monthsAha, got it! I wish, though, that this (and many products) would instead contain other oils considering the environmental impact and how comedogenic it is.. 🙄 Yeah, I got it as a gift in a purchase from another site, so I guess I'll try it anyway, but with caution 😄
- The post was made 2 monthsRating: 5 out of 5
Wow
I usually use Phlorentin CF from Skinceuticals - it's so expensive, so I tried this - and I'm super satisfied! In depth, Skinceuticals probably does more, but on the surface, I don't notice a difference between them!1 product in post Wow1423 views - The post was made 2 monthsRating: 3 out of 5verified customer
Started off great…
Loved it for a long time – then I started reacting to it 😭 One of my eyelids is swelling up, totally weird. Had the same reaction to retinol, incredibly annoying. But I noticed when I counted it that it helped a lot with evening out my skin tone. Deducting for low shelf life (2 months max) and gross smell.1 product in post Started off great…1265 views - The post was made 2 months
Retinol
Can this be combined with retinol/retinal?1 product in post Retinol1231 views- The user's roll: Farmaceut på Lyko. The comment was made 2 monthsHi Mathilda Johanna😊 Thank you for your question✨ It is not recommended to use COSRX Vitamin C 23 Serum together with retinol or retinal in the same routine, as both are active ingredients that can irritate the skin when combined. For best results, you can use vitamin C in the morning and retinol/retinal in the evening – or alternate between them on different days. If retinol is new to you, gradually introduce it 1-2 evenings a week and don’t forget sunscreen during the day. I hope my answer can be helpful and that you have a lovely day🌞1 likes
- The post was made 4 monthsRating: 2 out of 5verified customer
Smells bad
This smells very special, like old meat... Not exactly a fresh feeling afterwards 😒 Won't be buying this again.1 product in post Smells bad2255 views- The user's roll: Customer service at Lyko. The comment was made 4 monthsHey Karoline 🌟 Thank you for sharing your experience 💛 We totally understand that the scent can be unusual – especially with high concentration C-vitamin products. Since this is a pure C-vitamin serum, it can have quite a distinct smell, which for some might remind them a bit of metal or even fish oil. This is normal and is due to the active ingredient itself. That being said, it’s of course important that skincare also feels pleasant to use – and we completely understand that this didn’t become a favorite for you. Hope you find another variant that suits you better 💛 Have a lovely day! 🌸1 likes
- The post was made 5 months
Combination with pink serum
Hi, Does it make sense to use this together with the pink serum from elixir in the morning? In the evening, I use retinext from elixir.1 product in post Combination with pink serum2163 views- The user's roll: Customer service at Lyko. The comment was made 5 monthsHi! 🌞 Thanks for a great question! COSRX The Vitamin C 23 Serum can be used together with Elixir Pink Serum in the morning. They complement each other well – vitamin C works to even out skin tone and provide glow, while Pink Serum provides moisture and soothes the skin. Apply the vitamin C serum first, and let it absorb well before applying the Pink Serum on top. In the evening, it's great that you use Retinext – it creates a nice balance in the routine between active ingredients and care ✨ Just remember: ☀️ Always finish with SPF during the day when you use vitamin C and retinol in your routine. Feel free to reach out if you have more questions 💛
COSRXAdvanced The Vitamin C 23 Serum 20 ml
309 kr
New
Free delivery option available, can be sent immediately
Description
Ingredients
Texture
- The two layers blend seamlessly when the serum is applied, absorbing quickly to leave your skin feeling soft and smooth. If it feels a bit sticky, just mix in a little moisturizer.
Color
- The serum sports a light yellow hue – a natural indicator of pure vitamin C and nourishing oils.
Suitable for
- Uneven skin tone and hyperpigmentation
- Fine lines and signs of aging
- Dull and lifeless skin
- Dark spots
Usage:
Gently shake the bottle side to side after cleansing. Apply a few drops to your face and massage outward for an even application.
20 ml
- Category:6. Serum