Product description
1 Key Ingredients
2 How to use
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. The Niacinamide 15 serum Merchant Video
1 Holy Grail
2 Skin looks healthier
3 The best!!
4 Good product!
Our Brand Story
COSRX believes that cosmetics should give more than just outward beauty. We are devoted to enabling individuals to find solutions according to their personal skin conditions. We strive to help our customers gain self-confidence, and ultimately find their own unique beauty inside.
Featured in
COSRX has been featured in multiple prominent magazines and our products have received praise from many trusted editors. As proven by the countless articles that have been released, COSRX will continue to listen to the voices of our customers and strive to improve.
Product Dimensions : 4 x 4 x 6 inches; 0.71 ounces
Item model number : COS-048
Manufacturer : Cosrx
ASIN : B09ZYB8S31
Best Sellers Rank: #4,609 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #128 in Facial Serums
Customer Reviews: 4.4 4.4 out of 5 stars (7,596) 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); } }); });
Redness Relieving Serum: Refine Pores, Smoothen Skin, Relieve Redness. The Niacinamide and Zinc PCA instantly improves skin texture and radiance by reducing excess oil and minimizing pore sizes.
Key Benefits: Based on real results from consumers’ self assessments, the Niacinamide 15 Serum minimizes pore size, improves skin texture.
Dermatological Ingredients: 15% Niacinamide helps minimize enlarged pores and refine uneven skintone. Zinc PCA prevents potential breakouts from occurring.
How to Use: 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.
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.
Amanda*C –
Results without the irritation!
This product I can honestly say has been a remarkable addition to my skincare routine, particularly in addressing my longstanding battle with hyperpigmentation and uneven texture that comes with maturing skin. Its high concentration of niacinamide, known for its skin brightening and texture-improving properties, has genuinely started to transform my complexion. Sense I only apply once per day that’s pretty impressive in my book.From first use, the serum impressed me with its lightweight texture that absorbs seamlessly into the skin, leaving no sticky residue. This feature is particularly important to me, as it allows for easy layering with other products, and sense I apply daily at night it’s an important feature.One of the most noteworthy outcomes I’ve experienced since incorporating this serum into my regimen has been the visible reduction in dark spots and overall skin discoloration. My hyperpigmentation has gradually become less pronounced, revealing a more even skin tone that I’ve been striving to achieve for years. Additionally, the serum has effectively minimized the appearance of enlarged pores and provided relief from redness, enhancing my skin’s overall clarity and texture. I haven’t noticed a difference in the overall moisture or hydration of my skin but it was never my intention anyway.What sets this product apart for me is not only its efficacy but also its gentle formula. Despite the high concentration of niacinamide, my sensitive skin has tolerated it well without any signs of irritation or dryness. This is a significant advantage, as many potent skincare treatments can be too harsh for delicate skin..After consistent use, the improvements in my skin are undeniable. While patience is necessary to see full results, this serum has proven to be a powerful ally in reducing hyperpigmentation and enhancing my skin’s overall health. I would highly recommend giving it a go if your looking to reverse hyperpigmentation or smooth out pores it’s definitely a product worth incorporating into your routine!
Ray –
It Works!!
Great product! it helped clear up my acne and minimized inflation of new acne breakouts, and cleared up skin discoloration. It takes about a week to see full results if you’re consistent washing your face and applying nightly or as needed. I’m happy with my results. its a great purchase, after using so many others that just didn’t work.
Tatiana –
Smooth, refined skin from first use
This is a very good serum. My skin feels almost instantly smoother, softer, and more refined right after applying it. It’s a bit sticky at first, but the stickiness disappears quickly as it absorbs.I’d love to see a 20% version someday, but even at 15% it works amazingly well on my skin. I highly recommend it.
Jami –
love it!
had a lot of trial and error with COSRX.. this one is a good one. it is nice thin consistency, absorbs well, leaves skin feeling hydrated and moisturized with a nice dewey shine.
Victoria –
Lovely product
Recently added this to my skin care routine and I cant complain. Its helped improve my skins texture and the appearance of dark spots/scarring from breakouts
That Social Mom –
Effective for Pores and Redness – A Must-Have in My Skincare Routine!
I’ve been using the COSRX Niacinamide 15% Face Serum for a few weeks now, and I’m really impressed with the results! It has noticeably minimized the appearance of my enlarged pores and helped reduce redness on my skin. The formula is lightweight and absorbs quickly without leaving any sticky residue, making it easy to layer under other products. After consistent use, I’ve also seen an improvement in my skin’s overall texture, and it’s helped with some discoloration and dark spots as well. I appreciate that it’s gentle enough for my sensitive skin and that it’s cruelty-free, which is a big plus. This serum has become a staple in my skincare routine, and I highly recommend it for anyone looking to target pores, redness, or uneven skin tone. A little goes a long way, and the results are worth it!
데이지 –
❗️🚨 TOO STRONG FOR 1st TIME USERS 🚨❗️
While searching for products to help fade melasma, I decided to get something with niacinamide instead of vitamin C because of its instability. However, I really wish I would have done a little more research.. After using this for almost a month, I found out that the percentage is much too high for first-time users and/or those with sensitive skin. I might have been fine if I would have slowly introduced it into my routine by using the tiniest amount once or twice a week, but I had no idea that we have to build up a tolerance to new treatment products before we can use them daily.So, my skin is very oily, extremely sensitive, with enlarged pores and melasma. Right off the bat I started using a dropper full of this day and night. 🤦🏻♀️ BIG mistake. Not only was my face cherry red all day long, but it dried out my skin in certain areas, AND because I did not bring it close to my eyes or lips, there were noticeably brighter rings around them. It looked like I had a shade of concealer around my eyes and lips that was 5x lighter than my skin tone. A little over a week ago I quit using it entirely, thank goodness I did. Within a couple of days the dry areas and red irritation disappeared, while the bright rings finally returned to my normal skin tone. I regret not taking a picture when it was obvious enough for others to see, you will just have to take my word for it. 😋Another reason 15% is too strong—maybe unless you are an EXPEIRENCED user—is that many other products we use already have a small percentage of niacinamide added into their serums/moisturizers. For example, CeraVe has it in almost all of their moisturizers and sunscreens. So layering that on top off 15%, could possibly be giving your skin an overdose of up to 16-20% or more. ❗️🚨❗️ At those concentrations it could be very harsh and do the exact opposite of its intended treatment.That being said, if you already have a tolerance to niacinamide and are using other serums/moisturizers that lack it, I would definitely give this a try. 👍 Otherwise, I strongly suggest starting with 5% and working your way up to 10%. Also, be aware of the niacinamide content in other products you use with this!Finally, as for the product itself, because I used it wrong, I don’t have much to truly review other than I did notice it helped with excess sebum control. For me, that only benefit was not worth the side effects I encountered. 🙅🏻♀️Also, I noticed a few reviews mention you have to “shake” this before you using it. While that is true, I would not actually shake it as if I am trying to mix a protein drink. Instead, open it and squeeze the dropper to empty it. Close it back up WITHOUT squeezing it again, you want the dropper to be sans product while you do this. Roll it back and forth a few times between your palms like you would a nail polish, turn it around and roll it again. That’s all you have to do.In concluson, because I do love COSRX products, for the extra sebum it got rid of, and the hope that this serum will do its thing when I work up a proper tolerance to it, I rate it 3 stars. They lose two because it is too strong and because they could easily warn consumers how to work up a tolerance for daily use, yet neglect to. 👎I hope this helps.
suttee –
I like this product it tightens the pores and you see results pretty fast
cha2 –
Love this!
eva –
Estoy súper contenta con este sérum de niacinamida de COSRX. Desde que lo uso, he notado una mejora real en el aspecto de los poros, se ven más pequeños y la piel mucho más uniforme. La sensación en la cara es muy agradable, deja la piel fresca, equilibrada y sin brillos excesivos.Es perfecto para piel muy grasa, ya que regula bien el sebo sin resecar ni irritar. Yo lo uso una vez al día y es más que suficiente para notar resultados. La textura es genial, ligera, se absorbe rápido y no deja sensación pegajosa, lo que facilita seguir con el resto de la rutina facial.Contras: sinceramente, no le encuentro ninguno. Cumple lo que promete y se ha convertido en un básico en mi cuidado facial diario. Muy recomendable.
Esraa essam –
Original
Nk –
Cosrx serum I must say, is hands down the best facial serum I’ve ever used. From the first application, I noticed how smooth and refreshing it felt on my skin. It absorbs quickly, leaves no sticky residue, and gives my face such a healthy, radiant glow.Honestly, I wish I could buy it in dozens — like a pack of twelve — just to make sure I never run out. That’s how much I love it. If you’re looking for a serum that truly delivers, this is the one.