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Rating: 3.5Based on 94 reviews
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- Most helpful positiveThe post was made 10 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!6367 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 8 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 quickly5521 views - The post was made 3 days
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!128 views- The user's roll: Farmaceut på Lyko. The comment was made 1 dayHi 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 2 weeksRating: 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 Supergood309 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 ?896 views- The comment was made 1 monthAha, 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 Wow1331 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…1187 views - The post was made 2 months
Retinol
Can this be combined with retinol/retinal?1 product in post Retinol1169 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 bad2193 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 4 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 serum2117 views- The user's roll: Customer service at Lyko. The comment was made 4 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 💛
- The post was made 5 monthsRating: 1 out of 5verified customer
Damaged
Picked up the serum from the post yesterday, I'm basically very happy with this serum, but when I opened it this morning it was already completely yellow. When it has become so yellow, it no longer has any effect, disappointing with a brand new serum and now it's already useless.1 product in post Damaged1855 views- The user's roll: Customer service at Lyko. The comment was made 5 monthsHey there 💌 Thanks for letting us know – I totally understand that it’s frustrating when the serum looks discolored right at opening 😞 When it comes to vitamin C products, especially those with pure ascorbic acid, it’s actually completely normal for the serum to have a yellow/orange tint. This color doesn’t necessarily mean that the product is oxidized or unusable – it’s only when it turns dark brown that the effectiveness may be compromised. The slightly "tight" smell (which can remind you of fish oil) and the little puff sound upon opening are also completely normal – this happens because the product has been air-tight sealed according to recommendations to protect the vitamin C. A little tip to keep the serum in the best condition: Store it cool, preferably in the fridge ❄️ – vitamin C actually thrives best in low temperatures and dark environments. But if your serum is already dark brown in color, we’d love for you to send us a picture at kundesenter@lyko.com, so we can take a closer look at it together with you 💌 Wishing you a great day ahead!1 likes
- The post was made 5 monthsRating: 5 out of 5verified customer
really good
such a good serum for thin skin and gives glow 😅👌1 product in post really good1749 views
COSRXAdvanced The Vitamin C 23 Serum 20 ml
Sale price 216,30 kr
Ord. price 309 kr
Campaign 30%
Offer valid through
Free delivery option available, can be sent immediately
Description
Ingredients
Textur
- De två lagren smälter samman när serumet appliceras och absorberas snabbt, vilket gör huden mjuk och slät. Känns det lätt klibbigt kan du blanda in lite ansiktskräm.
Färg
- Serumet har en lätt gul ton – ett naturligt tecken på rent vitamin C och vårdande oljor.
Passar för
- Ojämn hudton och hyperpigmentering
- Fina linjer och ålderstecken
- Glåmig och livlös hud
- Mörka fläckar
Användning:
Skaka flaskan försiktigt från sida till sida efter rengöring. Applicera några droppar i ansiktet och massera utifrån och ut för en jämn applicering.
20 ml
- Category:6. Serum