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✨ Unlock radiant, youthful skin with every drop!
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.













































| 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 |
R**T
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.
R**A
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.
J**N
A Lightweight Booster That Instantly Smooths and Brightens
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.
H**Y
One of my most repurchased skincare items!
I’ve repurchased this multiple times now and it’s become a staple in my routine. It gives my skin such a healthy, hydrated glow without feeling sticky or heavy. My skin always feels softer and more plump after using it, and it layers really well with the rest of my skincare. I also love that it’s gentle and doesn’t irritate my skin at all. If you like that glass skin look, this is definitely worth trying!
M**2
Bye dry skin
Extremely moisturizing and soothing my dry skin during Tretinoin peeling phase. The fact that it’s unscented it’s HUGE plus! Fairly decent amount for the price too. The only downside is it takes time to dry up so not sure if you’re in hurry to put make up or sunscreen on atop of it.
I**M
A great primer before cream or serum
My skin is VERY dry and, directly after washing, once I pat my skin dry it will tighten and dry out in seconds if I don't get something on it quickly to keep the moisture in. This product is what I usually apply first. And, if my skin did dry out before I could get it on, this rehydrates it. This product is aptly described as a toner-serum. It's lightweight and fluid and primes my skin with hydration as well as copper peptides, niacinamide, and hyaluronic acid for water retention (it's nice to have all three in the same product) before I add a cream or oil over the top to seal it in. I usually let it sit on my face, neck, and décolleté for a couple of minutes before adding a heavier product so that it has time for the ingredients to penetrate. If needed and it dried, I may mist my face lightly with something watery to wet it again before adding a cream or serum. But often I will just add the cream or serum while it's still wet and it helps those products glide more thinly and evenly. This product has several ingredients I look for all-in-one and the formula seems free of unnecessary chemicals. It definitely helps streamline my skincare routine.
M**N
Truly impressive results — cleared my skin tone fast and keeps my face looking healthier every day
This COSRX 6X Peptide Collagen Booster Toner Serum has been a fantastic addition to my skincare routine. I originally bought it hoping to fix some white patches on my face caused by a burn from Brut aftershave. To my surprise, within just a week, the patches faded significantly and my skin tone became even again. That alone made the product worth it, but the benefits didn’t stop there. The formula feels premium — lightweight, fast‑absorbing, and never sticky. The combination of copper peptides, niacinamide, and hyaluronic acid works beautifully together. My skin feels cleaner, smoother, and more refreshed after every use. It gives a healthy glow without any irritation, and the hydration lasts throughout the day. Over time, I’ve noticed my skin looking firmer and more refined, so I’m confident it has real anti‑aging benefits as well. The bottle size is generous, and a little goes a long way, making it great value for the quality. It layers well with other products, doesn’t pill, and works for both morning and night routines. The scent is mild and pleasant, and the overall feel on the skin is soothing. All in all, this is a great product that delivers visible results quickly and continues to improve the skin with consistent use. Highly recommended for anyone looking for brighter, smoother, and healthier‑looking skin.
G**I
Favorite daily use product
I use them everyday. Light weight, I like the consistency and how hydrating it is. I think some acne scars got lighter!
S**A
A gentle, hardworking serum that became my daily staple
I've been using the COSRX 6 Peptide Collagen Serum for a little over two months now, and it has quietly become one of my favourite steps in my routine. I wanted to share a detailed review because these kinds of products are an investment and I always appreciate when someone is honest about what to actually expect. Texture and feel: It's a lightweight, slightly watery serum that sits somewhere between a toner and an essence, so it absorbs almost instantly without any sticky or greasy residue. The 150 ml bottle is generous compared to most serums in this category, and a little goes a long way. I use it morning and night, and I'm nowhere near running out. My experience: My main concerns were early signs of ageing and uneven skin texture. After the first couple of weeks, the first thing I noticed was that my skin felt more hydrated and bouncy, which I'd put down to the hyaluronic acid. Around the one-month mark, my skin started looking smoother and a bit firmer, especially on my cheeks. The niacinamide also seems to have helped even out my tone and calm some redness I usually get. What I liked most: It's genuinely gentle. I have somewhat sensitive skin and it never stung, broke me out, or caused any irritation, even layered under other actives. It plays well with the rest of my routine and works nicely under moisturiser and sunscreen. A few honest notes: This is a slow-and-steady product, not an overnight miracle. The peptide and collagen benefits build gradually, so patience and consistency are key. The scent is very mild and fades quickly, which I appreciate. Overall: If you want a hydrating, soothing serum that supports firmer, smoother-looking skin over time without irritation, this is a great, well-priced option. I'll definitely be repurchasing.
O**L
Great
Feels really nice on my face and you get a lot in the bottle.
A**N
très efficace
top ma peau est plus souple et plus hydratée.
C**N
Pelle compatta e pori minimizzati
Se la tua routine sembra aver smesso di dare risultati, questo booster ai 6 peptidi di COSRX è l'ingrediente mancante. Non va considerato come un siero tradizionale, ma come il "primo passo" fondamentale per risvegliare la pelle e potenziare tutto ciò che applicherai dopo. Formulazione e Texture (La scienza dei 6 Peptidi): La consistenza è acquosa, leggerissima e scivola sulla pelle con estrema facilità. Il mix di 6 diversi peptidi lavora su più fronti: compattezza, rughe sottili, elasticità e controllo dei pori. La presenza della Niacinamide e dell'Acido Ialuronico completa la formula, regalando un aspetto subito più riposato e una grana della pelle visibilmente più affinata. Risultati e Sensazioni: Assorbimento Istantaneo: Svanisce nella pelle in pochi secondi senza lasciare alcuna traccia appiccicosa. È la base perfetta sia per la routine del mattino che per quella serale. Effetto "Pore-Control": Ho notato un miglioramento reale nella visibilità dei pori e una produzione di sebo più equilibrata, grazie all'azione purificante e rassodante dei peptidi. Pelle Rimpolpata: Dopo una settimana di utilizzo, la pelle appare più "densa" al tatto e incredibilmente luminosa, eliminando quel grigiore tipico della stanchezza. Utilizzatelo come primissimo step subito dopo la detersione, a pelle nuda. Essendo un flacone generoso (150ml), non risparmiate sul collo e sul décolleté. Se usate altri sieri funzionali (come Vitamina C o Retinolo), applicate questo booster prima: aiuterà gli attivi successivi a penetrare meglio e a lavorare in sinergia. In sintesi: Un prodotto moderno, elegante e versatile che si adatta a ogni tipo di pelle. È il segreto per ottenere la famosa "pelle di vetro" coreana partendo dalle fondamenta. Rapporto qualità-prezzo eccellente per un formato così grande.
ぷ**ん
ファーストセラムの中で一番好き!
これがないと困る。 導入のファーストエッセンスありとなしでは保湿、肌の柔らかさなど違う。次に使う物の吸収が良い。 サラサラなので初めは何が良いのか分かりにくいが、使い続けると良さに気づく。名脇役。
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