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Product Dimensions : 1.73 x 2.56 x 4.09 inches; 0.71 ounces
Item model number : SC40TR03
Manufacturer : Cosrx
ASIN : B09ZY8T55Y
Best Sellers Rank: #5,152 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #140 in Facial Serums
Customer Reviews: 4.1 4.1 out of 5 stars 6,874 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
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.
Janice Kern –
Great value
This serum works really well. It also is affordable . The only complaint I have is that it smells terrible. Thank goodness the smell dissipates almost immediately. It does the job though and it’s makes my skin brighter.
Kat –
Instant Glow
I’ve only used this product for a few days, but I can already tell a difference, which is crazy. As soon as I put it on, it gave me an instant glow—not oily, greasy mess kind of glow, but the healthy, plump kind of glow. As someone who had beautiful skin during pregnancy, but is now struggling with uneven and dull skin tone postpartum, this made me extremely happy. Anyway, here are my initial thoughts:Formulation:•this contains a high ascorbic acid percentage. I’ve never been sensitive to ascorbic acid, so my skin does well with the high concentration. However, if you have more sensitive skin, consider starting with their other vitamin c serum that has a lower percentage of vitamin c.•there is no ferulic acid present, which is generally used to stabilize ascorbic acid. Without this, I’m afraid the product won’t last terribly long without oxidizing, so keep this in mind. The instructions do say to refrigerate after opening, which may help slow down oxidation.Texture:The texture of this serum reminds me of a bi-fácil product where there is an oil layer and water layer that need a little shake to incorporate. Don’t let the oiliness scare you though, it does sink in to the skin well and doesn’t feel heavy on the skin. I haven’t had any issues with pilling when I’ve applied other products and makeup on top.Smell:As many reviewers have mentioned, it does have a particular smell to it. To me, it reminds me of tuna, which is quite unpleasant. However, it does dissipitate quickly. I just hold my breath while I apply it to my face XD I don’t smell it at all throughout the day.
Amazon Customer –
Good quality, terrible smell
I’d give this 5 stars if it wasn’t for the smell. And I’ve used several different vitamin C serums; this is NOT the normal vitamin C smell. I do like the product though. It’s a thinner, non-oily serum. It spreads evenly on the skin and definitely brightens the skin. I would purchase again.
DIANA MARHER –
Happy with it, very good formula
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!
Kate –
Did this make me sick?
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!
Mkennedy –
Strong Smell & Poor Packaging
I’ve only been using this serum for a week, so I can’t speak to the results yet but the smell is awful. It seriously reminds me of canned dog food (beef kind), and it’s hard to get past.Also, the packaging isn’t great.The first bottle arrived completely leaked and had to be returned. The replacement came quickly, but it still had a slight leak. Not sealed well, which is disappointing for a serum that oxidizes easily.
BabeHeart922 –
About to order another bottle
First, let me address the smell. I actually lost my taste and smell in 2020 and never fully got it back, so I had no clue this even had such a foul odor. I happened to stumble across the reviews, so I am quite amused simply because I was thinking my cat was wanting to spend quality “mommy and me” time every day while I was at the sink. However, now I am thinking it’s because she thought she was getting tuna 😂JK, she likes to open my drawers and get hair ties in the bathroom, so I know she genuinely does want me for something.Now, regarding the oil: I love CosRx products, get regular skincare treatments (facials, chemical peels, etc.), follow some dermatologists and other non MD influencers on social media and all that fun stuff. In other words, skincare is important to me, so I don’t choose products that I put on my face willy nilly. I am about to order my second bottle, because I love this oil- I only use it a few times per week, but even then, it agreed with my skin, it is helping with my overall uneven skin pigmentation (it’s a slow process, so don’t expect overnight results), and it is more affordable than other brands out there.
Cute i really like it –
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.
Lovely product i recommend –
Nice
Anthony Poland –
Very good product well worth the money and very fast delivery
Maha –
بنات ما يسوى ابدا تاخذون شي مو موثوق لانه رخيص وتعالجون بشرتكم لشهوراولا ريحته كريهة جدا كانها ريحة فاصوليا معلبة بدون مبالغة وهذا الشي كان ممكن يكون محتمل لو انه منتج فعالسبب لي حبوب حمراء اول مره اشوفها بوجهي وقعدت اعالجها لفترة، بشرتي دهنيةطبعا 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 التونركان يحرق كمان مع اني سويت اختبار على رقبتي وقلت ممكن طبيعي بما انه فيتامين سيانا ما اعرف اذا المنتج مو اصلي او مكوناته ما ناسبتني بس عموما ما يسوى تعيشين بهالقلقبعدوا عنه احسن
Milica Sovilj –
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.