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COSRX 15% Niacinamide Face Serum, 0.67 fl oz, Pore Minimizer Serum for Face, Even Skin Tone, Korean Skin Care

4.4 out of 5 stars 5,640 ratings

$19.75 with 21 percent savings $29.48 per Fl Oz
List Price: $25.00
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Size: 0.67 Fl Oz (Pack of 1)
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Purchase options and add-ons

Skin Type Oily, Acne Prone, Combination
Product Benefits Rejuvenating
Use for Face
Scent No Artificial Fragrance
Special Ingredients antioxidants

About this item

  • 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.
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This item: COSRX 15% Niacinamide Face Serum, 0.67 fl oz, Pore Minimizer Serum for Face, Even Skin Tone, Korean Skin Care
$19.75 ($29.48/Fl Oz)
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Product Description

COSRX Niacinamide 15% Face Serum, Minimize Enlarged Pores, Redness Relief, Discoloration Correcting
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.
cosrx snail secretion filtrate 96% advanced 96 snail mucin power essence 100ml

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.

cosrx snail secretion filtrate 96% advanced 96 snail mucin power essence 100ml

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.

  • Based on a Primary Dermal Irritation Study (on 30 subjects for 24 hours) the “COSRX The Niacinamide 15 Serum” is found to be a non-irritant product that causes no irritation for sensitive skin.

  • To ensure the authenticity of the product, please make sure you are purchasing the product from COSRX Inc. ​The authenticity of the product cannot be promised when purchased from sellers other than COSRX Inc.

Product details

  • Product Dimensions ‏ : ‎ 4 x 4 x 6 inches; 3.53 ounces
  • Item model number ‏ : ‎ COS-048
  • Manufacturer ‏ : ‎ Cosrx
  • ASIN ‏ : ‎ B09ZYB8S31
  • Customer Reviews:
    4.4 out of 5 stars 5,640 ratings

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COSRX 15% Niacinamide Face Serum, 0.67 fl oz, Pore Minimizer Serum for Face, Even Skin Tone, Korean Skin Care
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Niacinamide 15% Facial Serum
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Price-21% $19.75
List:$25.00
-12% $18.39
List:$21.00
$25.00-18% $20.40
List:$25.00
$16.99$12.99
Price Per Unit$29.48 / Fl Oz$27.45 / Fl Oz$3.81 / Fl Oz$30.45 / Fl Oz$16.99 / Fl Oz$7.64 / Ounce
Delivery
Get it as soon as Saturday, May 3
Get it as soon as Saturday, May 3
Get it as soon as Saturday, May 3
Get it as soon as Saturday, May 3
Get it as soon as Saturday, May 3
Get it as soon as Saturday, May 3
Customer Ratings
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Important information

Safety Information

For external use only. Avoid contact with eyes. Keep away from naked flame or direct heat sources.

Indications

Pore Minimizer

Ingredients

Water, Pentylene Glycol, Niacinamide, Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Xanthan Gum, Pullulan, Allantoin, Ethylhexylglycerin, Sodium Phytate, Citric Acid, Tocopherol

Directions

Take a pea-sized amount (about 3-4 drops) of a face serum from the dropper onto your palms. (For best results, you can use a vitamin C serum.).

Customer reviews

4.4 out of 5 stars
5,640 global ratings

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Customers say

Customers find the serum effective, noting it works better than expensive alternatives, and appreciate its benefits for skin tone, texture, and appearance, with one customer reporting visible results after the first use. The serum helps control oily skin and reduces pore size, with some customers reporting pores on their cheeks becoming almost nonexistent. Customers disagree on whether the product is suitable for sensitive skin, and while some find it hydrating, others report it can be drying.

AI-generated from the text of customer reviews

204 customers mention "Effectiveness"174 positive30 negative

Customers find the serum effective, noting that it works better than expensive alternatives.

"...expensive for less than an ounce of product, but worth the financially questionable decision...." Read more

"...Despite its potency, with proper usage and gradual introduction into a skincare routine, it can become a staple for achieving clearer, brighter skin." Read more

"...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...." Read more

"The quality of this product is amazing! Forever will be part of my routine...." Read more

186 customers mention "Skin improvement"175 positive11 negative

Customers report positive results with this serum, noting improvements in skin tone, texture, and control of oily areas, while being effective even for sensitive skin.

"...absolutely does visibly reduce pores, oiliness, and redness after a few weeks. Works great under makeup, not sticky or pilly at all...." Read more

"...The high concentration of niacinamide helps to reduce the appearance of dark spots and redness, leading to a more even complexion...." Read more

"...Its high concentration of niacinamide, known for its skin brightening and texture-improving properties, has genuinely started to transform my..." Read more

"...My skin does okay with it but there is a little stinging. This will be one Cosrx product I likely won't reorder...." Read more

130 customers mention "Skin texture"123 positive7 negative

Customers report that the serum makes their skin feel smooth and soft, with one customer noting a glassy finish.

"...observed a reduction in the size of their pores and an overall smoother skin surface. **Results**:..." Read more

"...of niacinamide, known for its skin brightening and texture-improving properties, has genuinely started to transform my complexion...." Read more

"...niacinamide with propolis--it doesn't irritate my skin and it feels wonderful going on...." Read more

"...Poor choice. Immediately reordered this. My skin is so soft and my pores are significantly smaller almost immediately when using this. Great value...." Read more

100 customers mention "Pores size"90 positive10 negative

Customers report positive results with this serum, noting that it helps minimize pores, particularly on cheeks and nose, and prevents clogged pores.

"...It is very calming and hydrating, absolutely does visibly reduce pores, oiliness, and redness after a few weeks...." Read more

"...Many have also observed a reduction in the size of their pores and an overall smoother skin surface. **Results**:..." Read more

"...Additionally, the serum has effectively minimized the appearance of enlarged pores and provided relief from redness, enhancing my skin's overall..." Read more

"...This controls oil, minimizes the appearance of pores, and gives overall hydration...." Read more

66 customers mention "Skin appearance"60 positive6 negative

Customers like the appearance of their skin after using the serum, noting it looks better with a nice shine and even skin tone, while appreciating the beautiful black bottle design.

"...dealing with issues like hyperpigmentation, large pores, and uneven skin tone. Here's a detailed review of its features and performance: **..." Read more

"...My makeup sits beautiful on top of it as well if I decide to use it in the mornings. It doesn't make me break out, either! Thank goodness!!..." Read more

"...The glass bottle/dropper is nice though and I’ll be repurposing it (the label came off easy with little to no residue as well!)..." Read more

"...My complexion looks brighter and more even, which is exactly what I was hoping for...." Read more

64 customers mention "Glow"57 positive7 negative

Customers love the serum's glow-enhancing properties, noting that it brightens their complexion and lightens dark spots.

"...of 15% niacinamide, a form of vitamin B3 known for its brightening and anti-inflammatory properties...." Read more

"...incorporating this serum into my regimen has been the visible reduction in dark spots and overall skin discoloration...." Read more

"...My skin seemed softer and had more of a glow...." Read more

"The product gives a glow in face. It’s incredible." Read more

79 customers mention "Skin irritation"29 positive50 negative

Customers have mixed experiences with how the serum affects their skin, with some reporting it doesn't irritate sensitive skin at all, while others find it makes their skin oily and not suitable for sensitive skin.

"...My skin does okay with it but there is a little stinging. This will be one Cosrx product I likely won't reorder...." Read more

"...Noticeable improvements in skin texture and tone - Suitable for sensitive skin - Free from harmful additives **Cons**: -..." Read more

"...So, my skin is very oily, extremely sensitive, with enlarged pores and melasma...." Read more

"It makes my face feel sticky but it starts working in a week it make your face look clear and soft" Read more

73 customers mention "Hydration"45 positive28 negative

Customers have mixed experiences with the serum's hydration properties, with some finding it very hydrating and gentle, while others report that it dries out their skin.

"...It is very calming and hydrating, absolutely does visibly reduce pores, oiliness, and redness after a few weeks...." Read more

"...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,..." Read more

"...The hydrating elements in the serum help maintain the skin's moisture barrier, preventing dryness and irritation. **Packaging**:..." Read more

"...This controls oil, minimizes the appearance of pores, and gives overall hydration...." Read more

Softest my skin has EVER felt!
5 out of 5 stars
Softest my skin has EVER felt!
My skin is supple and soft. Moisturized and bright. This product is light, no smell, and absorbs quickly. My skin was dry irritated and itchy when I got it. The first two nights of using it, my skin kinda stung but I kept using it and my skin looks great in just 4 days and nights. A lot goes a long way which means the quality is top tier. Dab it 2/3 time on your forehead, once on either cheek and your chin. Rib it in and down your neck in an upward motion and let it absorb before 2 min before following up with an SPF! My picture is fresh out the shower at night and no filter.
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Top reviews from the United States

  • Reviewed in the United States on March 24, 2025
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    I love it, way too expensive for less than an ounce of product, but worth the financially questionable decision. It is very calming and hydrating, absolutely does visibly reduce pores, oiliness, and redness after a few weeks. Works great under makeup, not sticky or pilly at all. As with all niacinamide it only works while you are using it, if you stop, the results do not continue, so take note of that, but it's to be expected.
    6 people found this helpful
    Report
  • Reviewed in the United States on June 28, 2024
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    The COSRX Niacinamide 15% Face Serum is an impressive addition to any skincare routine, particularly for those dealing with issues like hyperpigmentation, large pores, and uneven skin tone. Here's a detailed review of its features and performance:

    **Ingredients and Formula**:
    The serum boasts a potent concentration of 15% niacinamide, a form of vitamin B3 known for its brightening and anti-inflammatory properties. Additionally, the formula includes other beneficial ingredients such as panthenol (pro-vitamin B5) for hydration, and allantoin to soothe the skin. The serum is free from parabens, sulfates, and artificial fragrances, making it suitable for sensitive skin.

    **Texture and Application**:
    The texture of the serum is lightweight and slightly viscous, which allows for easy application without feeling greasy or sticky. It absorbs quickly into the skin, making it convenient for both morning and evening routines. The dropper bottle ensures precise dispensing, minimizing product waste.

    **Performance**:
    Users report noticeable improvements in skin texture and tone after consistent use. The high concentration of niacinamide helps to reduce the appearance of dark spots and redness, leading to a more even complexion. Many have also observed a reduction in the size of their pores and an overall smoother skin surface.

    **Results**:
    With regular application, typically over a few weeks, the serum effectively diminishes hyperpigmentation and brightens the skin. It also aids in controlling excess sebum production, which can be beneficial for those with oily or acne-prone skin. The hydrating elements in the serum help maintain the skin's moisture barrier, preventing dryness and irritation.

    **Packaging**:
    The product comes in a sleek, minimalist bottle with a dropper for easy and hygienic application. The opaque bottle design protects the serum from light exposure, preserving the integrity of the ingredients.

    **Pros**:
    - High concentration of niacinamide
    - Lightweight, non-greasy formula
    - Noticeable improvements in skin texture and tone
    - Suitable for sensitive skin
    - Free from harmful additives

    **Cons**:
    - The 15% niacinamide concentration may be too potent for some, potentially causing initial irritation for sensitive skin types. It's advisable to perform a patch test before incorporating it fully into your routine.

    **Conclusion**:
    The COSRX Niacinamide 15% Face Serum is a powerful and effective solution for those looking to tackle hyperpigmentation, uneven skin tone, and enlarged pores. Its well-formulated blend of ingredients offers visible results without compromising on skin hydration or comfort. Despite its potency, with proper usage and gradual introduction into a skincare routine, it can become a staple for achieving clearer, brighter skin.
    181 people found this helpful
    Report
  • Reviewed in the United States on April 15, 2024
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    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!
    237 people found this helpful
    Report
  • Reviewed in the United States on November 9, 2024
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    While I love Cosrx, this niacinamide may be a little too strong for my rosacea-prone skin. My skin does okay with it but there is a little stinging.

    This will be one Cosrx product I likely won't reorder. I instead use Beauty of Joseon's niacinamide with propolis--it doesn't irritate my skin and it feels wonderful going on.

    Also, this is less than an ounce and my BOJ is 1.01 ounces and costs less. Though, Cosrx is not pricey at all - very reasonable prices. If it didn't sting my face, I'd probably reorder to use alternate days with BOJ.
    23 people found this helpful
    Report
  • Reviewed in the United States on April 13, 2025
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    I've been using this every night for a few weeks and I absolutely love it! I have oily skin, large pores, and some rosacea. This controls oil, minimizes the appearance of pores, and gives overall hydration. My makeup sits beautiful on top of it as well if I decide to use it in the mornings. It doesn't make me break out, either! Thank goodness!! I highly recommend this product!
  • Reviewed in the United States on April 5, 2025
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    The quality of this product is amazing! Forever will be part of my routine. I used it once (entire bottle), then switched to something else-for no good reason. Poor choice. Immediately reordered this. My skin is so soft and my pores are significantly smaller almost immediately when using this. Great value. Light scent. Not sticky. No irritation. I will continue purchasing

Top reviews from other countries

Translate all reviews to English
  • Dolly
    5.0 out of 5 stars Excellent product
    Reviewed in the United Kingdom on December 9, 2024
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    I would recommend everyone to purchase this product as it helps to soften skin,skinlook,Hydration,Effectiveness,Smell etc….. worth purchasing the product i give 5 star rating to it.
  • Zaidi
    5.0 out of 5 stars Cosrx niacinamide
    Reviewed in India on June 29, 2024
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    Good serum have been using for a while now and have seen a drastic change in scars, very hydrating no stickiness my pigmentation has also reduced to a great extent
  • Linck linck
    5.0 out of 5 stars Sérum taches brunes pigmentaires peaux matures
    Reviewed in France on February 6, 2025
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    J ai des tâches pigmentaires du a quelques boutons et melasma .
    Après plusieurs traitements prescris par des dermatologues (que j ai suivi vigoureusement) depuis quelques années maintenant j en avais marre d avoir cette tâche brune sur mon visage ..me suis dis je perds quoi ? 20 balles en gros contre 100 voir plus ( préparations prescrites par mes dermatologues non remboursées) ..le colis arrive bien fermer..
    J ai commencé ma routine un soir ( dimanche)
    Je lave mon visage puis je sèche en tapotant avec un linge propre
    J applique le toner de la même marque sur peau humide et je met ce sérum et enfin je boucle tout avec la crème de la même marque .. je fait cela depuis dimanche, nous sommes jeudi a l heure où j écris le commentaire
    Ce matin en me levant ... Ma peau cette tâche.. cette tâche brune qui m as pourri depuis maintenant 4 ans est casiment parti .. alors que j avais acheté ce produit sans trop y croire mais me suis dis pk pas !
    Vraiment je suis choquée des résultats et en bien je conseille cette marque Corsx ( j'y connais rien en cosmétique truc genre )
    A noter que je suis métisse ma peau est normal et sujette à des boutons d acnés hormonal je suis en pleine pre menaupose
    J ai une peau mature avec quelques rides
    Ben franchement je vous conseille cette game de produit mais surtout ceux a la bave Escargot combiné avec le sérum résultats magique
    Par contre moi je met une crème solaire ou un brume solaire après ma routine du matin ..
    Je ne dois pas être exposé au rayon du soleil ni ceux de la lune... maladie génétique orpheline rare...
    Je rachèterai ce flacon chez ce vendeur car c est le vendeur officiel
    Report
  • Michelle Corsame Tirol
    5.0 out of 5 stars Cosxs
    Reviewed in Australia on February 9, 2025
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    Good product
  • Sharon mariya
    2.0 out of 5 stars Got pimples after 1st use
    Reviewed in Saudi Arabia on March 25, 2025
    Size: 0.67 Fl Oz (Pack of 1)Verified Purchase
    Very oily...not suitable for oily skin...got pimples after 1st use

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