---
product_id: 538463295
title: "The Vitamin C 13 serum 20 ML"
brand: "cosrx"
price: "£13.90"
currency: GBP
in_stock: true
reviews_count: 6
category: "Cosrx"
url: https://www.desertcart.co.uk/products/538463295-the-vitamin-c-13-serum-20-ml
store_origin: GB
region: United Kingdom
---

# Fades acne scars & brightens skin 13% pure Vitamin C concentration Double-layer oil formula for freshness The Vitamin C 13 serum 20 ML

**Brand:** cosrx
**Price:** £13.90
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock your skin’s glow-up with science-backed Vitamin C! 🔥

## Quick Answers

- **What is this?** The Vitamin C 13 serum 20 ML by cosrx
- **How much does it cost?** £13.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/538463295-the-vitamin-c-13-serum-20-ml)

## 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

- • **Scar Slayer:** Clinically proven to visibly fade acne scars and hyperpigmentation with consistent use.
- • **Vitamin Boost:** Enriched with Vitamin E and hyaluronic acid to hydrate, protect, and smooth wrinkles.
- • **Freshness Locked:** Innovative double-layer oil barrier preserves potency and delays oxidation for maximum efficacy.
- • **Gentle Yet Potent:** Hypoallergenic, soap-free formula perfect for sensitive and dry skin without irritation.
- • **Radiance Reloaded:** Powerful 13% pure Vitamin C targets dullness and uneven tone for a luminous glow.

## Overview

COSRX The Vitamin C 13 Serum is a 20ml powerhouse featuring a 13% pure ascorbic acid concentration in a unique double-layer oil formula that preserves freshness and potency. Designed to brighten skin, fade acne scars, and even out tone, this hypoallergenic serum is enriched with Vitamin E and hyaluronic acid to hydrate and protect sensitive skin types. A top-rated, dermatologist-loved solution for radiant, youthful skin.

## Description

Cosrx The Vitamin C 13 serum 20 ML

Review: I love it - Perfect
Review: I love this product…leaves your skin feeling plump - Good purchase

## Features

- 13% concentrated pure vitamin C Serum Highly concentrated serum that fades acne scars, brightens and restores dull, uneven skin tone
- Concentrated vitamin C serum to fade acne scars & boost radiance Packed with vitamin C to effectively prevent melanin synthesis fading acne scars and hyperpigmentation whilst brightening the complexion
- Hypoallergenic, stabilised formula Stablised formula that breaks the preconceived notion that pure vitamin C is an irritating and double-layer structure with oil layer on top to maintain freshness and delay oxidation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BS8M8Q5L |
| Active Ingredients | ascorbic acid,vitamin c,vitamin e |
| Best Sellers Rank | #15,775 in Beauty ( See Top 100 in Beauty ) #457 in Facial Day Care |
| Brand | COSRX |
| Brand Name | COSRX |
| Customer Reviews | 4.3 out of 5 stars 2,111 Reviews |
| Global Trade Identification Number | 08809598455238 |
| Item Form | Oil |
| Item Volume | 20 Milliliters |
| Item Weight | 20 Grams |
| Manufacturer | COSRX |
| Manufacturer Part Number | SC40TR06 |
| Material Features | Antioxidant |
| Material Type Free | soap free |
| Model Number | SC40TR06 |
| Number of Items | 1 |
| Product Benefits | Brightening |
| Product benefits | Brightening |
| Recommended Uses For Product | Brightening,Hydrating,Provides Vitamins,Wrinkles |
| Scent | Unscented |
| Scent Name | Unscented |
| Skin Tone | All |
| Skin Type | Dry, Sensitive |
| Skin type | Dry, Sensitive |
| Special Ingredients | hyaluronic_acid, vitamin_c, vitamin_e |
| Special ingredients | hyaluronic_acid, vitamin_c, vitamin_e |
| Target Use Body Part | Skin |
| Unit Count | 20 Milliliters |
| Use for | Skin |

## Product Details

- **Product benefits:** Brightening
- **Scent:** Unscented
- **Skin type:** Dry, Sensitive
- **Special ingredients:** hyaluronic_acid, vitamin_c, vitamin_e
- **Use for:** Skin

## Images

![The Vitamin C 13 serum 20 ML - Image 1](https://m.media-amazon.com/images/I/71c4jNujODL.jpg)

## Questions & Answers

**Q: How do I use this product?**
A: This Serum consists of highly concentrated Pure Vitamin C (Ascorbic Acid)- a patch test on the body is recommended before using on the face. Store in the fridge to prevent oxidation.

**Q: Why does the serum smell bad?**
A: Pure Vitamin C (Ascorbic Acid) naturally has a coppery scent. In order to keep our product as natural as possible, The Vitamin C 13 Serum is formulated without artificial fragrances.

**Q: Can this be used on sensitive skin?**
A: Based on a Primary Dermal Irritation Study (on 30 subjects for 24 hours) the “The Vitamin C 13 Serum” is found to be a non-irritant product that causes no irritation for sensitive skin. *Perform a patch test on the body before using on the face.

**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

### ⭐⭐⭐⭐⭐ I love it
*by M***I on 4 April 2026*

Perfect

### ⭐⭐⭐⭐⭐ I love this product…leaves your skin feeling plump
*by M***M on 2 May 2025*

Good purchase

### ⭐⭐⭐ Smells like chemical and it comes in yellow colour is it oxidised??
*by A***A on 13 February 2025*

Okayish

## Frequently Bought Together

- COSRX Pure Vitamin C 13% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.67fl.oz/20ml, Korean Skin Care
- COSRX 15% Niacinamide Face Serum, 0.67 fl oz, Pore Minimizer Serum for Face, Even Skin Tone, Korean Skin Care

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**Shop now:** [https://www.desertcart.co.uk/products/538463295-the-vitamin-c-13-serum-20-ml](https://www.desertcart.co.uk/products/538463295-the-vitamin-c-13-serum-20-ml)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-30*