---
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: "cosrx"
price: "R646"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Cosrx"
url: https://www.desertcart.co.za/products/724824989-cosrx-niacinamide-beauty-serum-niacinamide-15-serum-20ml-niacinamide-15
store_origin: ZA
region: South Africa
---

# 15% pure Niacinamide concentration Lightweight, non-sticky formula Clinically tested for sensitive skin 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:** cosrx
**Price:** R646
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock flawless skin with the ultimate 15% Niacinamide boost! 💧

## 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 cosrx
- **How much does it cost?** R646 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/724824989-cosrx-niacinamide-beauty-serum-niacinamide-15-serum-20ml-niacinamide-15)

## Best For

- cosrx enthusiasts

## Why This Product

- Trusted cosrx brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Gentle Yet Effective:** Passed dual skin irritation tests—safe for daily use on sensitive skin
- • **Oil-Moisture Balance:** Refreshingly lightweight finish with zero stickiness for all-day comfort
- • **Vegan & Clean Beauty:** Cruelty-free formula that aligns with conscious skincare values
- • **All-in-One Trouble Solution:** Effectively reduces excess sebum, blackheads, and whiteheads
- • **Power-Packed 15% Niacinamide:** Highest concentration in its class for targeted trouble care

## Overview

COSRX Niacinamide Beauty Serum delivers a potent 15% pure Niacinamide formula combined with Zinc PCA to deeply target excess sebum, blackheads, and whiteheads. Clinically tested for sensitive skin, this lightweight, non-sticky serum balances oil and moisture while promoting skin rejuvenation. Perfect for millennials seeking effective, vegan-friendly skincare that tackles trouble spots and refines skin texture with daily use.

## Description

desertcart.co.jp: 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 : Beauty

Review: ハリがでる - 目の下の小じわに効く、ハリがでる。2本目リピです。40代にも効果ありでした。全く刺激なく、合わないとできる吹き出物もでませんでした
Review: Good product - I brought it for someone else and they really gave me good feedbacks in it.

## Features

- ● Concentrated trouble care packed in one drop! 》For concerns such as excess sebum, blackheads, and whiteheads! Deep care for skin troubles from within
- ●《With COSRX's unique secret, care for all kinds of trouble at once》Optimally formulated with pure Niacinamide 15% and carefully selected synergy ingredients to maximize trouble care!
- ● Safe to use even for sensitive skin! Passed two types of skin irritation tests, zero problems even with daily use!
- ● "Visible care alone is not enough! > Trouble Solutions to Care From Causes To Marks
- ● Refreshing finish with ZERO stickiness! > A lightweight formula that balances oil and moisture and leaves only a refreshing feel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09ZYB8S31 |
| Amazon Bestseller | #3,632 in Beauty ( See Top 100 in Beauty ) #110 in Facial Serums |
| Brand | COSRX |
| Brand Name | COSRX |
| Customer Reviews | 4.3 out of 5 stars 7,226 Your Review |
| Global Trade Identification Number | 08809598454637 |
| Item Form | Drop |
| Item Volume | 20 Milliliters |
| Item Weight | 0.29 Pounds |
| Manufacturer | COSRX |
| Material Feature | Vegan |
| Material Features | Vegan |
| Product Benefits | Rejuvenating |
| Skin Type | Normal |
| Unit Count | 1.0 Grams |

## Product Details

- **Brand:** COSRX
- **Global Trade Identification Number:** 08809598454637
- **Item Form:** Drop
- **Item Volume:** 20 Milliliters
- **Item Weight:** 132 g
- **Material Feature:** Vegan
- **Product Benefits:** Rejuvenating
- **Skin Type:** Normal
- **Unit Count:** 1.0 Grams

## 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/61wIjmR66xL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ ハリがでる
*by み***ん on December 22, 2025*

目の下の小じわに効く、ハリがでる。2本目リピです。40代にも効果ありでした。全く刺激なく、合わないとできる吹き出物もでませんでした

### ⭐⭐⭐⭐⭐ Good product
*by P***A on January 5, 2026*

I brought it for someone else and they really gave me good feedbacks in it.

### ⭐⭐⭐⭐ 高濃度ナイアシンアミド
*by C***O on February 8, 2026*

ナイアシンアミド15％という配合はかなり攻めていて、皮脂抑制や毛穴ケアを狙う設計は明確。実際、テカリや赤みには一定の効果を感じる。一方で、敏感肌には刺激が出やすく、使用初期にピリつきや乾燥を感じる可能性は高い。テクスチャーは軽めでベタつかず、重ね使いはしやすい。20mlで2,480円と容量単価はやや高め。

## 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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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-09*