{"content_id":"2001941","content_type":"product"}
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COSRX
COSRX

The Niacinamide 15 Serum

4.119
Retail Price₩23,000
Size20ml
Ranking

TikTok Reviews

AI-Analyzed Reviews

Pros
  • Not Sticky3
  • Lightweight2
  • Improves Complexion1
  • Manages Pores1
  • Improves Skin Tone1
  • Refreshing1
  • Improves Skin Texture1
Cons
  • Absorbs Well1
  • Slippery1
  • Feels Harsh on Skin1
  • Oily1
  • Unsatisfactory Scent1
  • Causes Breakouts1

9

Reviews

4.11

5
5
4
3
2
1

Korean Reviews

  • cj********** profile image
    cj**********
    Oily SkinSensitive SkinAcne Skin
    RecommendedJul 23, 2022
    Wow... this is truly a holy grail product! I've been trying for years to achieve plump, pore-tightening, and blemish-free oily skin without expensive treatments or procedures. It's been quite a journey! But honestly, until last year and early spring, I was so stressed about the bumpy texture and sebum buildup. After revamping my summer skincare routine, I'm now living with the best skin of my life! For those with blemish-prone skin who might be hesitant to try new products, I'll briefly describe my skin situation: My skin is currently in great condition, but it's still sensitive. I originally had combination dehydrated skin that was extremely oily. While I've managed to control blemishes with other products, I'm now focusing on tightening pores and improving elasticity. And this product is a game-changer! ∎ Why I bought it, its purpose & effects! First, I've seen great results from the niacinamide in an EGF serum (from Sidmool) for pore tightening, skin elasticity, and fading blemish marks and dark spots. I've consistently invested in that expensive product (around $39 for 11ml?). It was the most effective product for me, even though it doesn't contain a ton of EGF. I thought niacinamide might be contributing significantly to the effects. When I saw this product on Director Pi's channel, I decided to give it a try. (I bought it in early July for about $11 during a sale event. I believe it's usually around $19 on sale now. I received it on 7/20 through pre-order shipping.) And sure enough, the niacinamide effect was spot on! ✅Pore tightening!! (An effect I noticed since using the Sidmool EGF ampoule) ✅Smooth skin texture, and as someone with oily, large-pored skin, I'm surprised every morning by how beautifully my skin glows... ✅Director Pi mentioned it's effective for blemishes too. I rarely get breakouts these days, but even after heavy makeup and water activities, I used this product before bed and woke up with zero new blemishes! ✅Recently, I haven't had any redness or irritation (thanks to other products and long-term care), but even so, the morning after using this product, I don't get any surface redness easily from exfoliation or anything else! ∎ Unique advantages of this product! While niacinamide in any product would be good, Director Pi introduced this as having an excellent ingredient composition and high concentration. At this price point, I think I'll stick to this product! I'm so satisfied with both the price and the user experience that I'm not even curious about other products! I plan to keep using the Sidmool EGF ampoule for its excellent scar improvement, but this product offers: ✅Skin texture refinement ✅Slight brightening effect, improved complexion, dark circle and dull skin tone improvement (even in summer!) ✅Feels like it's improving the skin barrier too, my skin feels really comfortable and plump! Because of these effects, I plan to keep using it consistently for daily skin barrier/pore/complexion improvement. ∎ How does it feel to use? So, what about the user experience, which I mentioned as another advantage of this product besides its price? First, as someone with very oily skin, even in my summer skincare routine, I only use toner and cream in the morning, skipping all ampoules and serums. I incorporate various skincare products for treatment in the evening. (Writing this in late July) In the evening, if I apply too much of this, I thought it might feel heavy, so I only used a small amount. It turns out it's designed to be effective with just a small amount anyway! I use two layers of watery toner lightly, and before the last layer of toner is completely dry, I apply a tiny amount of this product (about a quarter of my pinky nail) on each cheek and blend it in, layering it with the toner. It absorbs well and spreads evenly. It has a concentrated, rich texture, so it works well when applied with the latter part of toner application. Besides this, it's been so hot lately, (I tend to keep my living space warm, usually 26-27°C) so I don't use other heavy ampoules when sleeping. My current summer night routine is just toner, this product, cream, spot treatment for blemish marks, and occasionally a pore-tightening fibro ampoule for my pore areas. I use the expensive Sidmool EGF sparingly, just for small acne scars. I think I'll use this as my main product for elasticity and complexion care from now on :) The price seems really good too (based on the sale price.. I feel like there's a regular price, but the sale price might be constant?)
    I'd like to include texture shots or other usage photos, but it's too much hassle.. Anyway, for someone with very oily skin, it's not heavy when used in small amounts, and it's effective for blemish prevention, skin barrier improvement, complexion enhancement, and skin texture refinement. It seems like a product worth using without any downsides :) Since it's not heavy for oily skin (when used in small amounts), it probably won't be heavy for other skin types either, Even though I don't have blemishes anymore, my skin is still quite sensitive, but there was absolutely no irritation! I really, really like it :) The packaging also allows for easy control of the amount dispensed, and honestly, even if I try, I can't find any cons!!
    I recommend applying a small amount to your face when your toner is about 90% absorbed, and blending it together with the toner! Don't use it with heavy-textured products~ On days when you use this, it might be enough on its own (excluding things like eye cream)

  • yh*****
    Combination SkinSensitive SkinAcne SkinAtopic SkinSebum/BlackheadsDark CirclesDead Skin Cells
    Jul 16, 2022
    The texture is like flowing water with a slightly moisturizing feel, but not sticky. After application, there's a bit of an oily sensation on the skin's surface. Those with very oily skin might find this sufficient on its own in summer. It could be great for people with dull complexions, dark circles, blemishes, small bumps, or uneven skin texture. As for the scent, I didn't pay much attention since I only used it at night or didn't apply it when going out. If you're concerned about your skin, it's probably better than products with lots of fragrances. The niacinamide seemed to work well for me, showing some effectiveness except on areas with dermatitis. Of course, I avoid applying such products on inflamed areas like rashes or acne - for those, it's better to use ointments or prescribed medications from a dermatologist. I used to have a yellowish complexion with bumpy skin and occasional acne. Since using this, whether it's due to my recent exercise routine or not, people have commented that my skin looks better. I've noticed my complexion brightening and my skin texture improving. At the very least, it doesn't seem to have any negative effects on my skin. However, everyone's skin is different. I don't usually recommend or discourage products based solely on my experience. Whether positive or negative, consider others' reviews as reference, but you'll need to try it yourself to know for sure. * Apparently, they've decided to renew the product.
    Avoid applying on areas with wounds or dermatitis as it may cause a stinging sensation. While it's fragrance-free, those with sensitive noses might perceive a slight saliva-like or odd scent. Some might feel like it's sitting on top of the skin due to a slightly slippery sensation after application. I wish the container was transparent so you could see how much product is left.

Ingredients

What's inside

All Ingredients14
1-2Low-Risk12
3-6Medium-Risk1
7-10High-Risk0
Undetermined1

All Ingredients

14
20 Ingredients to Avoid
0
Potential Allergen
0

Ingredient Functions

11
Moisturizing
2
Skin Barrier Protection
1
Lock in hydration
1
Brightening
0
Soothing
0
Exfoliating
0
Acne Care
0
Sun Protection
0
Anti-Wrinkle

Ingredient Information:

Each ingredient is selected for its specific purpose, such as improving skin hydration or brightening. However, the inclusion of these ingredients does not guarantee the overall effectiveness of the final product. Simply using these ingredients does not ensure the product will deliver the claimed benefits.


Ingredients by Skin Type

Oily Skin
1
0
Dry Skin
2
0
Sensitive Skin
1
0
  • We recommend reviewing the full ingredient list from the manufacturer/brand before purchasing.
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  • The ingredient ratios are provided by the brand, which is fully responsible for their accuracy.

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