Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Brightening & Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, Korean Skincare, 0.7oz/20g

5-Star Review: The COSRX Vitamin C23 serum is an absolute powerhouse! Packed with Vitamin E and hyaluronic acid, it has transformed my skin. As someone with Indian skin living in the UK, I’ve struggled to find a serum that absorbs well, but this one works beautifully. It sinks right in, leaving my skin hydrated, radiant, and noticeably improved. Yes, there’s a slight smell when you first apply it, but it fades almost instantly. Honestly, it’s a small trade-off for the incredible results. My skin feels smoother, more even-toned, and healthier overall. I’m just loving it and can’t recommend it enough!

Has a bit of a funny smell, but it works

This is my favorite Vitamin C serum! I’ve already finished one bottle and just started my second. Initially, I was hesitant because of its slightly oily texture—I was worried it might make my skin feel greasier. However, I was pleasantly surprised by the radiant glow it gave me, and the slight stickiness actually helped my foundation adhere better. Overall, my skin looks and feels much healthier. The only downside is the scent, but it’s not strong enough to stop me from using it.

I am a big vit C lover and I’ve used the medik8 and the other higher brands and this is just as good or better! It’s a slight oil consistency but soaks in quickly and feels so lovely on the skin! I absolutely love this and will buy my 2nd bottle. Keep in the fridge!

My skin is like a champ, it can handle anything! I’ve tried countless creams, and nothing has ever bothered it. But after just two days of using this vitamin c , Corsx day cream and corsx snail serum, my skin is in a terrible state. It’s super dry, itchy, and peeling. I’ve got red patches all over my face, and it looks like I’ve been through a chemical burn. *****UPDATE***** COSRX customer service reached out to me with a sincere apology, eager to resolve my issue. They even offered a full refund! Even though their products aren’t my cup of tea, I’m giving them a big 5* for their exceptional customer service. Thanks a bunch!

I think its working to reduce my pigmentation on my cheeks, however….. i camt bring myself to re-buy this product. The colour, the texture and the smell is like urine! To the point myself and my boyfriend have actually debated whether we got a dud bottle thats been tampered with and someone has pee-d in it as some kind of sick joke!! Im using it every morning as i do think its working, i dont want to waste my money, and i have faith in the human race that there isnt some strange employee working for the company that has pulled some sick joke….but its defo not a pleasant experience!! I cant stress enough how much it feels as though you are rubbing urine all over your face!

I'm 48 and a major skincare addict and the ordinary skincare range changed my skin like no other. I wanted to find a good vitamin c serum but after trying lots of different brands I just never got the glow or the results I was craving for, that's until I trued this little gem. I use some really strong actives so my skin is used to strong products so I would definitely not reccomend this for sensitive skin or skin that is not used to strong products but if your looking for a vitamin c serum that gives amazing results I highly highly 100 percent reccomend this 1. I have just subscribed so I never run out . 1 of my favourite skincare products ever . There is also a lower 13% serum from thus brand that I would reccomend if your skin is not used to using strong active products tho I have nit tried that personally so cannot give an honest review of that but as its from cosrx I'm sure it will still be an aging product as most of their products are in my experience.

I love this vit c. It's pretty strong so sensitive skin be careful. Smells like burnt toast initially but the smell goes away. Leaves my skin shiny, hydrated and glowing. Has also improved pigment. Use with an spf on top to protect skin.

its kinda of sticky, but it does good to my skin. I dont rub it but just tap it to my face, every other day.

Very good product well worth the money and very fast delivery

I like it and I have seen results with it quite fast. I liked that it is 23% pure vitamin C (ascorbic acid) and also has niacinamide, hyaluronic acid, and vitamin E. Quite a potent serum and covers all the grounds for you. One thing I didn't like about it is that it oxidizes rather quickly so it is better to keep it in the fridge so it lasts longer. If it is your first time using vitamin C serums then this concentration could be slightly irritating for you.

بنات ما يسوى ابدا تاخذون شي مو موثوق لانه رخيص وتعالجون بشرتكم لشهور اولا ريحته كريهة جدا كانها ريحة فاصوليا معلبة بدون مبالغة وهذا الشي كان ممكن يكون محتمل لو انه منتج فعال سبب لي حبوب حمراء اول مره اشوفها بوجهي وقعدت اعالجها لفترة، بشرتي دهنية طبعا استخدمت تونر من نفس الشركة وبرضو ماهو احسن منه، بس متأكدة ان هذا السيروم سبب الحبوب لاني حسيت الحبوب خفت بعد ما وقفته حتى مع استمراري على التونر كان يحرق كمان مع اني سويت اختبار على رقبتي وقلت ممكن طبيعي بما انه فيتامين سي انا ما اعرف اذا المنتج مو اصلي او مكوناته ما ناسبتني بس عموما ما يسوى تعيشين بهالقلق بعدوا عنه احسن

I have been using the COSRX Pure Vitamin C Serum with Vitamin E for a while now and I really love it. At first, I noticed it has a slightly weird smell. It is not unpleasant but definitely unique compared to other serums I have tried. Once you get used to the smell, it is no longer a problem. What I really like is how it feels on the skin. The texture is very lightweight and it absorbs quickly without leaving any sticky or greasy feeling. It gives my skin a fresh and real sensation as if it is doing something beneficial deep down rather than just sitting on the surface. Since using this serum regularly I have noticed that my skin looks brighter and more even toned. It feels softer and smoother. The added Vitamin E helps with hydration and nourishes my skin. I also appreciate that it does not irritate my skin even though it can be sensitive sometimes so it is gentle yet effective. Overall despite the odd smell at first the performance of this serum makes it totally worth it. It feels like a high quality product that works well and I would definitely recommend it to anyone looking to improve their skincare routine with a Vitamin C serum that actually delivers results.