---
product_id: 724824989
title: "COSRX Niacinamide Beauty Serum Niacinamide 15 Serum 20ml Niacinamide 15% Lotion Highest Content in Its Class Zinc PCA Problem Care Trouble Care Blackheads Whiteheads Sensitive Skin Skincare Basic"
brand: "コースアールエックス(cosrx)"
price: "€ 28.26"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/724824989-cosrx-niacinamide-beauty-serum-niacinamide-15-serum-20ml-niacinamide-15
store_origin: PT
region: Portugal
---

# 15% Niacinamide - potent clarity boost Oil-water balance - zero greasiness Sensitive skin safe - dual irritation tested COSRX Niacinamide Beauty Serum Niacinamide 15 Serum 20ml Niacinamide 15% Lotion Highest Content in Its Class Zinc PCA Problem Care Trouble Care Blackheads Whiteheads Sensitive Skin Skincare Basic

**Brand:** コースアールエックス(cosrx)
**Price:** € 28.26
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock flawless skin with every drop 💧

## Quick Answers

- **What is this?** COSRX Niacinamide Beauty Serum Niacinamide 15 Serum 20ml Niacinamide 15% Lotion Highest Content in Its Class Zinc PCA Problem Care Trouble Care Blackheads Whiteheads Sensitive Skin Skincare Basic by コースアールエックス(cosrx)
- **How much does it cost?** € 28.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/724824989-cosrx-niacinamide-beauty-serum-niacinamide-15-serum-20ml-niacinamide-15)

## Best For

- コースアールエックス(cosrx) enthusiasts

## Why This Product

- Trusted コースアールエックス(cosrx) brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Gentle Yet Effective:** Dual skin irritation tests passed for daily sensitive skin use
- • **Synergistic Zinc PCA Blend:** Maximizes blackhead & whitehead control with precision
- • **Deep Rooted Trouble Solution:** Works from cause to scar for visible, lasting results
- • **Power-Packed 15% Niacinamide:** Highest concentration in class for targeted trouble care
- • **Lightweight, Non-Greasy Formula:** Balances oil and moisture for a fresh, matte finish

## Overview

COSRX Niacinamide 15 Serum delivers a powerful 15% niacinamide concentration combined with Zinc PCA to effectively target excess oil, blackheads, and whiteheads. Dermatologically tested for sensitive skin, this lightweight formula balances moisture and oil without greasiness, providing deep, visible skin clarity and trouble care suitable for daily use.

## Description

COSRX Niacinamide 15 Serum, 0.7 fl oz (20 ml), Niacinamide 15% Highest Content in Class, Zinc Zinc PCA, Trouble Care, Blackhead, White Head, Sensitive Skincare, Skin Care, Basic Cosmetics, Beauty

## Features

- ●《1滴に込められたトラブル集中ケア！》過剰皮脂、ブラックヘッド、ホワイトヘッドなどのお悩み向け！肌の奥からのトラブルケア
- ●《COSRX独自秘訣であらゆるトラブルを一度にケアできる》純粋ナイアシンアミド15%最適配合及びトラブルケアを最大化できるよう、シナジー成分を厳選！
- ●《敏感肌にも安心して使える！》皮膚刺激テスト2種合格で毎日使用しても問題ZERO！
- ●《目に見えるケアだけでは意味ない！》原因から跡までケアするトラブルソリューション
- ●《さわやかな仕上がりでべたつき感ZERO！》油・水分バランスを整えてさっぱり感だけ残す軽いフォーミュラ

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 10.16 x 10.16 x 15.24 cm; 131.54 g |
| Skin Type | Normal |
| Item Form | Drop |
| Specific Uses Keywords | face |
| Target Gender | Unisex |

## Product Details

- **Skin Type:** Normal
- **Product Benefits:** Rejuvenating
- **Brand:** コースアールエックス(Cosrx)
- **Item Form:** Drop
- **Material Feature:** Vegan
- **Item Weight:** 0.29 Pounds
- **Item Volume:** 20 Milliliters
- **Unit Count:** 1.0 Grams
- **Global Trade Identification Number:** 08809598454637

## Images

![COSRX Niacinamide Beauty Serum Niacinamide 15 Serum 20ml Niacinamide 15% Lotion Highest Content in Its Class Zinc PCA Problem Care Trouble Care Blackheads Whiteheads Sensitive Skin Skincare Basic - Image 1](https://m.media-amazon.com/images/I/61EIRcemkbL.jpg)

## Questions & Answers

**Q: Can this be used on sensitive skin?**
A: 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.

**Q: How do I know if this product is authentic?​**
A: 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.

## Frequently Bought Together

- COSRX 15% Niacinamide Face Serum, 0.67 fl oz, Pore Minimizer Serum for Face, Even Skin Tone, Korean Skin Care
- COSRX Retinol 0.5 Oil, Anti-aging Serum with 0.5% Retinoid Treatment for Face, Reduce Wrinkles, Fine Lines, & Signs of Aging, Gentle Skincare for Day & Night, Not Tested on Animals, Korean Skincare

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**Shop now:** [https://www.desertcart.pt/products/724824989-cosrx-niacinamide-beauty-serum-niacinamide-15-serum-20ml-niacinamide-15](https://www.desertcart.pt/products/724824989-cosrx-niacinamide-beauty-serum-niacinamide-15-serum-20ml-niacinamide-15)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-24*