COSRX The Niacinamide 15 Serum 20ml

Marsoni

M251S

$69.00

Get it in 3 business days with 1 day shipping. Friday, May 29

COSRX The Niacinamide 15 Serum 20mlKey Benefits This serum is a high strength formula designed for oily, acne prone, and uneven skin. It contains 15% niacinamide, making it one of the most potent niacinamide serums available. Acne & Oil Control Niacinamide (15%): Regulates sebum production, reduces inflammation, and fades acne scars. Zinc PCA (1%): Calms skin and prevents breakouts by controlling oil. Brightening & Texture Refinement N Acetylglucosamine (NAG): Works synergistically

Easy Shipping

Quick Dispatch:

Your COSRX The Niacinamide 15 Serum 20ml orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your COSRX The Niacinamide 15 Serum 20ml ships.

Need Help?
Questions about COSRX The Niacinamide 15 Serum 20ml, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for COSRX The Niacinamide 15 Serum 20ml in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

I really wanted to love these, and I *almost* did. They are comfortable and cute. But they are a little wide across the mid-foot so they were a little sloppy on my feet. The platform is quite high, and while at 5'3" I appreciated the extra height, between that and being too wide, I felt they were an accident waiting to happen. If they were slightly more narrow and a little lower, I would have been in love, but I had to return them. They seem true to size except for the extra width.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 10, 2026

Verified Purchase

Mur

Louisville, US

★★★★★ 5

Comfort in a Slide

Size: 7.5, Color: Black

These are true to size and extremely comfortable. I prefer the extra height that they provide and the quality is 10/10. I would purchase in another color and highly recommend them if you’re looking for these attributes in a slide.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 25, 2026