SKU: 71603808625

COSRX The Niacinamide 15 Serum 20ml

Sale price$19.80 Regular price$22.00
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

COSRX The Niacinamide 15 Serum 20mlCOSRX The Niacinamide 15 Serum delivers targeted support for acne prone skin with a clinically high 15% concentration of niacinamide, effectively reducing inflammation and regulating sebum production for a clearer complexion. We value this serum for its precise formulation that balances potent, synergistic ingredients to enhance skin clarity and strengthen the skins barrier function. The lightweight texture absorbs quickly, leaving the skin feeling

COSRX The Niacinamide 15 Serum delivers targeted support for acne-prone skin with a clinically high 15% concentration of niacinamide, effectively reducing inflammation and regulating sebum production for a clearer complexion.

We value this serum for its precise formulation that balances potent, synergistic ingredients to enhance skin clarity and strengthen the skin’s barrier function. The lightweight texture absorbs quickly, leaving the skin feeling hydrated without any residue or heaviness, making it suitable for layering within a skincare routine.

Key Ingredients:

  • Niacinamide (15%): Reduces inflammation, minimises pores, and regulates excess sebum to control acne breakouts.
  • Acetyl Glucosamine: Promotes skin brightening and evens out skin tone by supporting natural exfoliation.
  • Zinc PCA: Helps balance oil production while providing antimicrobial properties to prevent further blemishes.

How to Use:

  1. Apply 2-3 drops to clean, dry skin after cleansing and toning.
  2. Gently pat the serum across the face, focusing on areas prone to blemishes.
  3. Follow with moisturiser and sunscreen during the day.

The Ritual Tip: For optimal results, incorporate this serum into both morning and evening routines consistently, and allow it to fully absorb before layering other products to maximise its anti-inflammatory and pore-minimising effects.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71603808625

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4.0 ★★★★★
Based on 27 reviews
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Verified Purchase
Beatriz Cabrera Portuondo
Belleville, US
★★★★★ 5
Comfort and Quality
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows are very comfortable. They hold their shape well throughout the night and have greatly improved my sleep. Plus, the quality of the materials is excellent. Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
D
Verified Purchase
D. Stec
Alexandria, US
★★★★★ 1
Terrible pillows
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows might be fine if you need them for a decorative sham, but definitely NOT to sleep on. They are super lumpy and soft, days after taking them out of package. It seems like there are just bunches of cotton strips in a row that are hard to fluff. They are also dark in some areas, so it looks like the pillow is stained, when in fact it's whatever material the stuffing is. I can't return them because they won't fit back in the box. Super disappointing.
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Reviewed in the United States on March 8, 2026
L
Verified Purchase
Lianay Reyes
Bozeman, US
★★★★★ 5
Comfortable from the first night
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
I found them comfortable and with good support for the head and neck. They are wide in size and feel soft when lying down. After several days of use they continue to retain their shape without problem.
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Reviewed in the United States on June 6, 2026
T
Verified Purchase
Tom Armstrong
Boise, US
★★★★★ 4
Not as Firm as I had hoped
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
A good pillow. However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated. I'll have to go for firmer for my next purchase.
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Reviewed in the United States on July 28, 2025
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Verified Purchase
Computerized Nurse
Lexington, US
★★★★★ 5
I admit when I was wrong.
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
3/29/26 - I took the pillows and put them in my dryer on steam refresh for the default 10 minute cycle. OMG - they fluffed up and evened out to be soft and comfortable, no lumps whatsoever. If you like a soft pillow with some support, but not firm support, THIS is what you want. I am truly amazed. ================================================== Previous review---They arrived in a vacuum seal bag. When you cut the bag and they inflate, they inflate lumpy like. Some areas are thick and some have to fill so, not very good. I am going to try washing them and drying them to see if they fluff up better. Will post the results in a day or two.
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Reviewed in the United States on March 24, 2026

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