--- product_id: 543002746 title: "6X Peptide Collagen Skin Booster Toner Serum for Dull Skin, 5.07 oz | Preps Skin with Copper Peptides, GHK-Cu for Uneven Skin Texture, Skin Renewal Boosting Facial Essence, Korean Skin Care" brand: "cosrx" price: "€ 53.03" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/543002746-6x-peptide-collagen-skin-booster-toner-serum-for-dull-skin store_origin: HR region: Croatia --- # fast-absorbing, toner-like serum boosts elasticity & reduces fine lines 6 potent peptides for skin renewal 6X Peptide Collagen Skin Booster Toner Serum for Dull Skin, 5.07 oz | Preps Skin with Copper Peptides, GHK-Cu for Uneven Skin Texture, Skin Renewal Boosting Facial Essence, Korean Skin Care **Brand:** cosrx **Price:** € 53.03 **Availability:** ✅ In Stock ## Summary > ✨ Unlock your skin’s full potential with every drop! ## Quick Answers - **What is this?** 6X Peptide Collagen Skin Booster Toner Serum for Dull Skin, 5.07 oz | Preps Skin with Copper Peptides, GHK-Cu for Uneven Skin Texture, Skin Renewal Boosting Facial Essence, Korean Skin Care by cosrx - **How much does it cost?** € 53.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/543002746-6x-peptide-collagen-skin-booster-toner-serum-for-dull-skin) ## 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 - • **Perfect First Step:** Ideal to use right after cleansing for maximum absorption - • **Multi-Action Skin Booster:** Targets elasticity, pores, fine lines & uneven texture in one step - • **Lightweight & Fast Absorbing:** Toner-serum texture that preps skin instantly for layering - • **Power-Packed Peptide Complex:** 6 peptides including GHK-Cu for visibly firmer, radiant skin - • **Synergistic Skincare Partner:** Pairs seamlessly with COSRX Snail 96 Essence & Retinol Cream for next-level glow ## Overview COSRX 6X Peptide Collagen Skin Booster Toner Serum is a lightweight, fast-absorbing facial essence formulated with 6 peptides including copper peptides (GHK-Cu) to improve skin elasticity, reduce fine lines, minimize pores, and enhance radiance. Designed as the first step after cleansing, it preps skin for optimal absorption of subsequent products and supports skin renewal and texture improvement. Ideal for dull, uneven skin, it works best when layered with complementary COSRX products. ## Description 6-Peptide Skin Booster Copper Peptide Serum Pink Peptides Eye Patch Copper Peptide Cream Peptides Hydrogel Mask PDRN Exosome WrappingMask Snail Mucin Eye Cream ## 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 | | Best Sellers Rank | #22 in Facial Serums | | Item Model Number | SC40TR34 | | Manufacturer | COSRX | | Product Dimensions | 1.73 x 1.73 x 5.91 inches; 5.29 ounces | ## Product Details - **Product Benefits:** Radiant Skin - **Scent:** 6 Multi Peptide Complex (1 Pack) - **Skin Type:** All - **Special Ingredients:** Peptide - **Use for:** Face ## Images ![6X Peptide Collagen Skin Booster Toner Serum for Dull Skin, 5.07 oz | Preps Skin with Copper Peptides, GHK-Cu for Uneven Skin Texture, Skin Renewal Boosting Facial Essence, Korean Skin Care - 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 ### ⭐⭐⭐⭐⭐ Excelente product💕 *by on Reviewed in the United States July 12, 2026* I’ve been using this skin booster for a while, and I absolutely love it! It leaves my skin feeling hydrated, smooth, and refreshed, and I’ve noticed my complexion looks healthier and more even over time. The lightweight texture absorbs quickly and layers well with the rest of my skincare routine.The only downside is the bottle. It doesn’t look very nice and feels a bit cheap compared to how amazing the product inside is. I really hope the brand improves the packaging because the formula is truly excellent.Overall, I highly recommend it and will definitely purchase it again. ### ⭐⭐⭐⭐⭐ Powerhouse product for the cost *by on Reviewed in the United States 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. ### ⭐⭐⭐⭐⭐ Use morning and night definitely worth the price *by on Reviewed in the United States July 21, 2026* Fairly inexpensive product to add to your a.m. and p.m. routine. I noticed that it has definitely softened my dry patches and calmed down the redness in my face. No greasy residue and works well with my makeup application The biggest difference for me has been in my PM routine. Although I keep it in my daily routine, adding it to my nighttime routine, I noticed a better poor tightening effect and firmness of my skin. Pair this with the the maelove peptide squad. The Cos RX is a penetration booster allowing the maelove skin serum to penetrate much deeper into your skin tissue. Noticed a difference since I added these two products together in my PM routine. Combining the two in just two weeks, I noticed my skin has a Dewey look, and my pores definitely look smaller around my nose and cheeks. I love how my skin feels incredibly soft to the touch. I think this combination is a marathon not a sprint for my overall results to just get better overtime. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/543002746-6x-peptide-collagen-skin-booster-toner-serum-for-dull-skin](https://www.desertcart.hr/products/543002746-6x-peptide-collagen-skin-booster-toner-serum-for-dull-skin) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-18*