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 Sep 20 - Sep 25

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For Your Every Summer RSVP, with Code: SUMMER15

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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4.1 ★★★★★
Based on 8 reviews
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Verified Purchase
Tiffany Vela
Dallas, US
★★★★★ 1
👎🏽 a
Size: Upgrade Queen (2 Pack)
Incredibly thick and firm pillows. Not great for stomach or side sleepers. They alway end up on the floor cause we find them uncomfortable. Don’t recommend, practically unusable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
M
Verified Purchase
Mopardodgegirl
Massapequa, US
★★★★★ 5
It works! Quality pillow.
Size: Standard (1 Count), Color: Original White (Cooling)
This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.
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Reviewed in the United States on June 2, 2026
J
Verified Purchase
jin
Boise, US
★★★★★ 5
Most comfortable pillow I’ve ever slept on
Size: Queen (1 Count), Color: Crescent White(cooling)
This is the most comfortable pillow I have ever slept on. It doesn't mash down like other pillows. Cradles my neck perfectly plus it’s cool. I broke my neck a couple of years ago and this pillow feels very good and comfortable. Definitely recommend to everyone. Ive used it since May and it’s retained its shape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
A
Verified Purchase
AreTrue
Boise, US
★★★★★ 4
Smell
Size: Queen (2 Count), Color: Original White (Cooling)
The fact that there are not more comments on the smell of these pillows has me worried about some of yall. Listen, I LOVE the weight, and the firmness, it’s perfect for that. However, these pillows are RANK. They have a very strong mildew-ish smell that lingers. I took the outer cover off and washed it and let the pillow air out for a few days, the smell is still very strong when you press your face against it, which one does because it is in fact designed for that purpose. It smells so bad. It’s nauseating. I can smell it through two pillowcases and blanket that I threw on top of them hoping an extra layer would trap the smell. I’ll bake them in the Texas sun tomorrow and hope that helps, because otherwise these are the perfect pillows for someone who wants to feel like they are hugging a torso but can’t stand the sound/feel of someone else breathing. I don’t know…4 stars, if the smell goes away I’ll come back. Update: many many days later. Either they don’t really smell anymore or I got use to it. They’ve held their firmness and shape well. I like them.
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Reviewed in the United States on March 9, 2026
S
Verified Purchase
Samantha
Bozeman, US
★★★★★ 5
Actually Cooling Pillow
Size: Queen (1 Count), Color: Original White (Cooling)
This is a really nice pillow, I was worried it would be too soft or too firm but it's just right and it's actually cooling, it feels cool every time I touch it. I've noticed an improvement in sleep since using it. Would recommend!
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Reviewed in the United States on May 27, 2026

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