---
product_id: 441143330
title: "COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care"
brand: "cosrx"
price: "¥174"
currency: JPY
in_stock: false
reviews_count: 13
url: https://www.desertcart.jp/products/441143330-cosrx-pure-vitamin-c-23-serum-with-vitamin-e-hyaluronic
store_origin: JP
region: Japan
---

# Hyaluronic acid deep hydration 23% pure Vitamin C concentration Vitamin E antioxidant protection COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care

**Brand:** cosrx
**Price:** ¥174
**Availability:** ❌ Out of Stock

## Summary

> ✨ Glow like you mean it — the ultimate Vitamin C serum for radiant, youthful skin!

## Quick Answers

- **What is this?** COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care by cosrx
- **How much does it cost?** ¥174 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/441143330-cosrx-pure-vitamin-c-23-serum-with-vitamin-e-hyaluronic)

## 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

- • **Hydration Hero:** Hyaluronic acid delivers intense moisture deep into skin layers, smoothing fine lines and wrinkles.
- • **Radiance Reboot:** Boost your glow with a potent 23% pure Vitamin C serum that visibly brightens and evens skin tone.
- • **Age-Defying Armor:** Vitamin E works overtime to shield your skin from early aging and environmental damage.
- • **Lightweight Luxury:** Fast-absorbing, non-greasy formula perfect for layering under makeup or sunscreen without pilling.
- • **Fridge-Friendly Freshness:** Refrigerate to preserve potency and prevent oxidation—because your skin deserves the freshest boost.

## Overview

COSRX Pure Vitamin C 23% Serum is a high-potency, lightweight facial serum formulated with pure ascorbic acid, Vitamin E, and hyaluronic acid. Designed to brighten dull skin, reduce fine lines, and even out skin tone, this hypoallergenic serum delivers deep hydration while protecting against early signs of aging. Ideal for sensitive skin types, it requires refrigeration to maintain freshness and maximize antioxidant benefits.

## Description

desertcart.com: COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care : Beauty & Personal Care

Review: Instant Glow - I’ve only used this product for a few days, but I can already tell a difference, which is crazy. As soon as I put it on, it gave me an instant glow—not oily, greasy mess kind of glow, but the healthy, plump kind of glow. As someone who had beautiful skin during pregnancy, but is now struggling with uneven and dull skin tone postpartum, this made me extremely happy. Anyway, here are my initial thoughts: Formulation: •this contains a high ascorbic acid percentage. I’ve never been sensitive to ascorbic acid, so my skin does well with the high concentration. However, if you have more sensitive skin, consider starting with their other vitamin c serum that has a lower percentage of vitamin c. •there is no ferulic acid present, which is generally used to stabilize ascorbic acid. Without this, I’m afraid the product won’t last terribly long without oxidizing, so keep this in mind. The instructions do say to refrigerate after opening, which may help slow down oxidation. Texture: The texture of this serum reminds me of a bi-fácil product where there is an oil layer and water layer that need a little shake to incorporate. Don’t let the oiliness scare you though, it does sink in to the skin well and doesn’t feel heavy on the skin. I haven’t had any issues with pilling when I’ve applied other products and makeup on top. Smell: As many reviewers have mentioned, it does have a particular smell to it. To me, it reminds me of tuna, which is quite unpleasant. However, it does dissipitate quickly. I just hold my breath while I apply it to my face XD I don't smell it at all throughout the day.
Review: Happy with it, very good formula - First time with this brand, but using Vit C serum for years. So far one of my favorites in the range of price. Smells uncomfortable fishy but that is the Vit C normal smell, after some seconds over the skin the smell is gone, and personally prefer this than any extra essence. The oil is pretty thin and absorbs immediately. Haven't had any reactions but I have quite of time with this VitC concentration. I like how my skin looks, give me a glossy renewed look every morning. Any result with dark spots or fine lines, but I realized that is normal aging and nothing to do with it lol, anyway my skin looks healthy and younger for my age. Totally happy with this brand in my second week of use. Update: one month of use and still love it!

## Features

- A lightweight Vitamin C Booster Serum. Fight early signs of aging and improve the skin's radiance with the lightweight and hydrating Vitamin C serum.
- Patch Test Recommended: This serum consists of highly concentrated pure Vitamin C. A patch test on the body is recommended before using it on the face.
- Dermatological Ingredients: Pure Vitamin C (Ascorbic acid) helps achieve youthful glowing skin. Super Vitamin E (Tocotrienol) helps fight signs of aging and slows down skin damage. Hyaluronic acid delivers rich moisture deep into the skin and helps reduce the appearance of fine lines and wrinkles.
- How to Use: Shake 1-2 times before use and apply 2-3 drops once or twice daily. For daytime wear, follow up with SPF 30+ sunscreen. Can be applied under the eye area; avoid direct eye contact. ✅ Store in the fridge to prevent oxidation.
- Patch Test Recommended: Perform a patch test on the body before using on the face. Proceed to using on the face if no irritation occurs in 24 hours. Consult with your doctor immediately if irritation occurs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09ZY8T55Y |
| Active Ingredients | ascorbic acid,vitamin c,vitamin e |
| Best Sellers Rank | #73,784 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #1,465 in Facial Serums |
| Brand | COSRX |
| Brand Name | COSRX |
| Customer Reviews | 4.2 out of 5 stars 7,809 Reviews |
| Global Trade Identification Number | 08809598454651 |
| Item Form | Drop |
| Item Volume | 20 ml |
| Item Weight | 20 g |
| Manufacturer | Cosrx |
| Manufacturer Part Number | 8809598454651 |
| Material Features | Hypoallergenic |
| Material Type Free | Artificial,Fragrance-free |
| Model Number | SC40TR03 |
| Number of Items | 1 |
| Product Benefits | Brightening |
| Recommended Uses For Product | Brightening,Hydrating,Provides Vitamins,Wrinkles |
| Scent | 23% |
| Scent Name | 23% |
| Skin Tone | All |
| Skin Type | Sensitive |
| Special Ingredients | Hyaluronic Acid |
| Target Use Body Part | Face |
| Use for | Face |

## Product Details

- **Product Benefits:** Brightening
- **Scent:** 23%
- **Skin Type:** Sensitive
- **Special Ingredients:** Hyaluronic Acid
- **Use for:** Face

## Images

![COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care - Image 1](https://m.media-amazon.com/images/I/61ZCnxS+ZGL.jpg)
![COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care - Image 2](https://m.media-amazon.com/images/I/71pKMSLDD-L.jpg)
![COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care - Image 3](https://m.media-amazon.com/images/I/71c--fsa25L.jpg)
![COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care - Image 4](https://m.media-amazon.com/images/I/71OZs9LCvxL.jpg)
![COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care - Image 5](https://m.media-amazon.com/images/I/71bZXVlBFqL.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 23 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 “COSRX The Vitamin C23 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

### ⭐⭐⭐⭐⭐ Instant Glow
*by K***T on April 6, 2024*

I’ve only used this product for a few days, but I can already tell a difference, which is crazy. As soon as I put it on, it gave me an instant glow—not oily, greasy mess kind of glow, but the healthy, plump kind of glow. As someone who had beautiful skin during pregnancy, but is now struggling with uneven and dull skin tone postpartum, this made me extremely happy. Anyway, here are my initial thoughts: Formulation: •this contains a high ascorbic acid percentage. I’ve never been sensitive to ascorbic acid, so my skin does well with the high concentration. However, if you have more sensitive skin, consider starting with their other vitamin c serum that has a lower percentage of vitamin c. •there is no ferulic acid present, which is generally used to stabilize ascorbic acid. Without this, I’m afraid the product won’t last terribly long without oxidizing, so keep this in mind. The instructions do say to refrigerate after opening, which may help slow down oxidation. Texture: The texture of this serum reminds me of a bi-fácil product where there is an oil layer and water layer that need a little shake to incorporate. Don’t let the oiliness scare you though, it does sink in to the skin well and doesn’t feel heavy on the skin. I haven’t had any issues with pilling when I’ve applied other products and makeup on top. Smell: As many reviewers have mentioned, it does have a particular smell to it. To me, it reminds me of tuna, which is quite unpleasant. However, it does dissipitate quickly. I just hold my breath while I apply it to my face XD I don't smell it at all throughout the day.

### ⭐⭐⭐⭐⭐ Happy with it, very good formula
*by D***R on March 27, 2025*

First time with this brand, but using Vit C serum for years. So far one of my favorites in the range of price. Smells uncomfortable fishy but that is the Vit C normal smell, after some seconds over the skin the smell is gone, and personally prefer this than any extra essence. The oil is pretty thin and absorbs immediately. Haven't had any reactions but I have quite of time with this VitC concentration. I like how my skin looks, give me a glossy renewed look every morning. Any result with dark spots or fine lines, but I realized that is normal aging and nothing to do with it lol, anyway my skin looks healthy and younger for my age. Totally happy with this brand in my second week of use. Update: one month of use and still love it!

### ⭐⭐⭐⭐ Not bad. Yes stinky.
*by N***E on July 13, 2024*

I've only used it once. That being said, it burns a tiny bit on a raw spot I have on my face and my face turned bright red! Otherwise it's OK. My redness faded quickly. It does smell like tuna. However the scent quickly dissipates. Very quickly. Especially if you put something over it, which you should. I dont like how it "dries" very sticky. Even after 5 mins my hand was still sticky. I applied snail mucin on top (as shown in my video) and it definitely lessened the sticky. Now it's soaked in a few hours, it feels nice. I notice a lot of reviews talk about the bottle only being half filled. It says in the little leaflet that is on purpose because of the ingredients used. When you open it there is a pressure release hiss. Like a soda bottle (as shown in my video) That is why there is lots of space in the bottle. If they filled it to the top that thing would burst from the pressure. And definitely spurt everywhere upon opening. I'm happy they didn't fill all the way up. I feel like this is going to be a good addition to my Cosrx family of product!

## Frequently Bought Together

- COSRX Pure Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Brightening & Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.7oz/20g, Korean Skin Care
- COSRX Snail Mucin 92% Face Moisturizer, 3.52 Oz, Lightweight Moisturing Cream for Soft, Glowy Skin, Korean Skin Care, Korean Moisturizer Face Cream

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-07*