---
product_id: 543002746
title: "COSRX 6X Peptide Collagen Skin Booster Toner Serum for Dull & Uneven Skin, Preps Skin with Copper Peptides, GHK-Cu, Skin Renewal Boosting Facial Essence, Korean Skin Care, 5.07 oz"
brand: "cosrx"
price: "$35.52"
currency: USD
in_stock: true
reviews_count: 13
category: "Cosrx"
url: https://www.desertcart.us/products/543002746-cosrx-6x-peptide-collagen-skin-booster-toner-serum-for-dull
store_origin: US
region: United States of America
---

# fast-absorbing lightweight serum paraben & fragrance free formula 6 potent peptides for skin renewal COSRX 6X Peptide Collagen Skin Booster Toner Serum for Dull & Uneven Skin, Preps Skin with Copper Peptides, GHK-Cu, Skin Renewal Boosting Facial Essence, Korean Skin Care, 5.07 oz

**Brand:** cosrx
**Price:** $35.52
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock radiant, youthful skin with every drop!

## Quick Answers

- **What is this?** COSRX 6X Peptide Collagen Skin Booster Toner Serum for Dull & Uneven Skin, Preps Skin with Copper Peptides, GHK-Cu, Skin Renewal Boosting Facial Essence, Korean Skin Care, 5.07 oz by cosrx
- **How much does it cost?** $35.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/543002746-cosrx-6x-peptide-collagen-skin-booster-toner-serum-for-dull)

## 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

- • **Clean & Conscious:** Free from parabens, sulfates, phthalates & fragrance for sensitive skin
- • **Instant Absorption:** Toner-like texture preps skin quickly for seamless layering
- • **Peptide Powerhouse:** 6 peptides including GHK-Cu boost elasticity & reduce fine lines
- • **K-Beauty Glow Ritual:** Perfect first step serum to elevate your daily skincare game
- • **Multi-Action Renewal:** Targets dullness, uneven tone, pores & hyperpigmentation

## Overview

COSRX 6X Peptide Collagen Skin Booster Toner Serum is a 5.07 oz lightweight essence infused with 6 peptides including copper peptides (GHK-Cu) designed to improve skin elasticity, reduce fine lines, minimize pores, and brighten dull, uneven skin. This fast-absorbing, paraben-free formula preps skin for optimal absorption of subsequent products, making it an essential first step in any skincare routine. Highly rated and beloved in the K-beauty community, it supports collagen production and skin renewal for a visibly radiant complexion.

## Description

desertcart.com: COSRX 6X Peptide Collagen Skin Booster Toner Serum for Dull & Uneven Skin, Preps Skin with Copper Peptides, GHK-Cu, Skin Renewal Boosting Facial Essence, Korean Skin Care, 5.07 oz : Beauty & Personal Care

Review: Powerhouse product for the cost - Wow. Years ago (I'm 52), in the mid-aughts when I started realizing I needed to care for my skin, quality products (outside Cera Ve) either required a prescription or were awfully expensive. You really had to pick and choose what you purchased, and it always came at a cost. Fast forward to now, and the product lines like COSRX , The Ordinary, the Inkey and more really have brought incredible skin care to an affordable price point. I was looking for a copper peptide serum that was a little less expensive than the one I was using ($40 for a .5 oz bottle). I saw this on special and decided to try it out, as I have liked some of their other products. I'm quite impressed after using for a little less than a week. One thing I think this does is really help distribute my other serums more evenly; in addition to copper peptides and nianamiacde in my regular rotation I use a growth factors serum, azelaic acid, and vitamin C, but I always feel like I have issues getting coverage. By starting with this, then layering the others, I find I get much better coverage. In general, just a few days in my skin is looking much more hydrated and even my fine lines and wrinkles are less prominent. (Its almost winter in Maine right now and hydration is a serious challenge.). The woman who put this on her lips - thank you! Genius. It really makes a difference. In addition to this, I find this product alone leaves my skin really smooth and hydrated under makeup. Its super lightweight and really helps achieve a good finish, and really lasts all day to boot. While Im a little old to achieve a "glass" finish I imagine a younger person could really nail that look with this.
Review: Very Good Skin Care Item - It is Good, it visibly improves the look of dark spots, hyperpigmentation, and uneven skin tone. I like it Very Much. I have used it carefully, slowly, and it has helped my skin improve and look good over time. The Skincare item does even out skin tone well and boosts some natural radiance in the skin. It offers some hydration. I like how it enhances skin texture, and effectively diminishes the appearance of some dark spots and discoloration. It is gentle and has Helped and Improved My Skin and Face Very Much. I like how it improves the look of face skin for a fresher, more better good looking appearance. It helps to improve the appearance of skin. It does well with to visibly reduce the look of dark spots and post-acne marks. It is pleasant, decent, satisfying, nice and effective. I would Recommend this Skin item.

## Features

- Skin Booster Toner: Skin Boosting Serum with 6 Peptides including Copper Peptides that improve skin elasticity, fine lines, pores, and radiance. Boost your skin's condition and achieve multiple benefits with this serum.
- First Step of Skincare: This lightweight serum with a toner-like texture absorbs quickly into the skin, making it a great first step in your daily skincare routine. Its quick absorption allows for easy layering with other products.
- Key Ingredients: 6 Peptides that boost skin elasticity, reduce post hyperpigmentation, control pores, renew skin, calm and alleviate skin, and improve the look of fine lines and wrinkles.
- How to Use: After cleansing, apply 2-3 pumps of the Serum on your face. Layer on your favorite moisturizer for additional hydration. Best when used with the COSRX Snail 96 Essence and/or the COSRX Retinol 0.1 Cream.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CCJ3SRB9 |
| Active Ingredients | peptides |
| Best Sellers Rank | #379 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #17 in Facial Serums |
| Brand | COSRX |
| Brand Name | COSRX |
| Customer Reviews | 4.6 out of 5 stars 12,030 Reviews |
| Global Trade Identification Number | 08809598455658 |
| Item Form | Essence |
| Item Type Name | Liquid |
| Item Volume | 150 Milliliters |
| Item Weight | 150 Grams |
| Manufacturer | COSRX |
| Manufacturer Part Number | SC40TR34 |
| Material Features | Paraben Free |
| Material Type Free | Bisphenol A Free, Fragrance Free, Phthalate Free, Sulfate Free |
| Model Number | SC40TR34 |
| Number of Items | 1 |
| Product Benefits | Radiant Skin |
| Recommended Uses For Product | Collagen Booster,Reduces Hyperpigmentation,Targets Acne,Moisturizing,Reduces Fine Lines And Wrinkles |
| Scent | 6 Multi Peptide Complex (1 Pack) |
| Scent Name | 6 Multi Peptide Complex (1 Pack) |
| Skin Tone | All |
| Skin Type | All |
| Special Ingredients | Peptide |
| Target Use Body Part | Face |
| Unit Count | 5.07 Fluid Ounces |
| Use for | Face |

## Product Details

- **Product Benefits:** Radiant Skin
- **Scent:** 6 Multi Peptide Complex (1 Pack)
- **Skin Type:** All
- **Special Ingredients:** Peptide
- **Use for:** Face

## Images

![COSRX 6X Peptide Collagen Skin Booster Toner Serum for Dull & Uneven Skin, Preps Skin with Copper Peptides, GHK-Cu, Skin Renewal Boosting Facial Essence, Korean Skin Care, 5.07 oz - Image 1](https://m.media-amazon.com/images/I/61ZNyaBF0CL.jpg)

## Available Options

This product comes in different **Scent** options.

## Questions & Answers

**Q: Can this be used on sensitive skin?**
A: The 6 Peptide Booster Serum has been clinically tested to be safe to use on sensitive skin. However, a patch test on the body is highly recommended before using on the face for all skincare products.

**Q: Can this be applied alone?**
A: Yes, the Serum can be applied by itself, but it helps maximize benefits when applied with other active ingredients. The easy to layer and fast-absorbing texture makes it easy to use before applying heavier moisturizers on the 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

### ⭐⭐⭐⭐⭐ Powerhouse product for the cost
*by R***T on November 26, 2025*

Wow. Years ago (I'm 52), in the mid-aughts when I started realizing I needed to care for my skin, quality products (outside Cera Ve) either required a prescription or were awfully expensive. You really had to pick and choose what you purchased, and it always came at a cost. Fast forward to now, and the product lines like COSRX , The Ordinary, the Inkey and more really have brought incredible skin care to an affordable price point. I was looking for a copper peptide serum that was a little less expensive than the one I was using ($40 for a .5 oz bottle). I saw this on special and decided to try it out, as I have liked some of their other products. I'm quite impressed after using for a little less than a week. One thing I think this does is really help distribute my other serums more evenly; in addition to copper peptides and nianamiacde in my regular rotation I use a growth factors serum, azelaic acid, and vitamin C, but I always feel like I have issues getting coverage. By starting with this, then layering the others, I find I get much better coverage. In general, just a few days in my skin is looking much more hydrated and even my fine lines and wrinkles are less prominent. (Its almost winter in Maine right now and hydration is a serious challenge.). The woman who put this on her lips - thank you! Genius. It really makes a difference. In addition to this, I find this product alone leaves my skin really smooth and hydrated under makeup. Its super lightweight and really helps achieve a good finish, and really lasts all day to boot. While Im a little old to achieve a "glass" finish I imagine a younger person could really nail that look with this.

### ⭐⭐⭐⭐⭐ Very Good Skin Care Item
*by R***A on April 18, 2026*

It is Good, it visibly improves the look of dark spots, hyperpigmentation, and uneven skin tone. I like it Very Much. I have used it carefully, slowly, and it has helped my skin improve and look good over time. The Skincare item does even out skin tone well and boosts some natural radiance in the skin. It offers some hydration. I like how it enhances skin texture, and effectively diminishes the appearance of some dark spots and discoloration. It is gentle and has Helped and Improved My Skin and Face Very Much. I like how it improves the look of face skin for a fresher, more better good looking appearance. It helps to improve the appearance of skin. It does well with to visibly reduce the look of dark spots and post-acne marks. It is pleasant, decent, satisfying, nice and effective. I would Recommend this Skin item.

### ⭐⭐⭐⭐⭐ A Lightweight Booster That Instantly Smooths and Brightens
*by J***N on July 9, 2026*

The COSRX 6X Peptide Collagen Skin Booster Toner Serum is one of those rare “first step” products that actually makes a visible difference. The texture is ultra‑light — almost watery — but it absorbs immediately and leaves the skin feeling smoother and more refreshed. It’s packed with six peptides and collagen, so it gives the skin a subtle plumping effect right after application. After using it consistently, I noticed my complexion looking more even and less dull. It layers beautifully under serums and moisturizers, and it really does help the rest of your routine absorb better. This booster adds that healthy, hydrated glow without any heaviness or stickiness. It’s gentle, fast‑absorbing, and perfect for prepping the skin for the rest of your routine. A great choice for anyone dealing with dullness, uneven tone, or loss of firmness.

## Frequently Bought Together

- COSRX 6X Peptide Collagen Booster Toner Serum, Niacinamide & Hyaluronic Acid Facial Essence for All Skin Types, Korean Skin Care, Paraben Free, 150mL/5.07 Fl.Oz
- 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 United States of America*
*Store origin: US*
*Last updated: 2026-07-12*