COSRX 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

I've been using this for well over a year and I use it after I get out of the shower in the morning, and at night when I wash my face. It allows for deeper penetration of other skin care products and I've noticed a huge difference in the texture of my skin as well. It is highly effective with no scent. I have a very mild case of rosacea (self diagnosed, lol). But this has made a significant difference in evening my skin tone and getting rid of the redness. I also apply it to my neck and chest area and have noticed a difference as well, in the way my other products work after applying it. Especially products used to lighten any dark spots like freckles etc. I've noticed a HUGE difference in that area. Because I am fair skinned, unfortunately I am prone to freckles since I was younger. So if I go out in the sun, I get sprinkled with freckles on my nose and upper cheeks as well as my chest and shoulders and although I use SPF, I do live in Florida and I've noticed since moving here from the north my skin looks so much worse. But when using this along with some other dark spot remover products it has made a huge difference in the way the products work! It's a very watery consistency but do not put it on a pad like you would for a toner this is not a toner you want it to absorb into your skin as much as possible. It is not thick at all it comes out basically like water and soaks right into your skin with a few light pads give it about a minute and you'll be ready to move on to your next step in your skincare routine. For the price I think the value for your money is excellent! I will never not have this in my skincare routine, two thumbs up and if I had more thumbs I'd give it more! Haha! And five stars, if I could give it more stars I would!

This product is accurately described as a toner serum. It has the lightweight, fast-absorbing texture of a toner, but functions more like a treatment serum. Rather than focusing only on hydration, its real strength is how well it prepares the skin and enhances the performance of products applied afterward. With consistent use, I’ve noticed clearer skin, a brighter and more even tone, and gradual improvement in dark spots. The effect is especially noticeable when pairing it with active treatments such as vitamin C serums. How I use it (evening routine): In the evening, I apply a thin layer and gently pat until fully absorbed, then repeat this step 2–4 times, depending on how dry my skin feels that day. Building hydration gradually this way allows the skin to absorb moisture without heaviness and noticeably improves plumpness and overall moisture retention. Once the toner serum is fully absorbed, I apply my treatment serums (such as vitamin C), followed by a moisturizer with enough oil and hydration to seal everything in. Used this way, it clearly improves how well active serums absorb and perform, leaving the skin looking fuller, healthier, and well-hydrated. Morning use: I also use this in the morning, but usually apply just one light layer. It noticeably improves makeup application—foundation goes on more evenly, adheres better, and stays comfortable throughout the day without emphasizing dryness. I hope this review is helpful for anyone deciding whether this fits into their routine.

I've been using the COSRX The 6 Peptide Skin Booster Serum for a little over a year and a half, and after going through multiple bottles, I can confidently say it's earned a permanent spot in my skincare routine. It's not the kind of product that delivers dramatic overnight results, but it's one of those formulas that quietly improves the performance of everything you apply afterward. Sometimes those end up being the products worth repurchasing the most. The texture is one of my favorite things about it. It's lightweight and watery—almost like an essence—but has just enough body to spread easily across the skin. It absorbs within seconds, leaves no sticky residue, and layers beautifully under every serum, moisturizer, sunscreen, and even makeup I've tried. One thing I really appreciate is the ingredient lineup. As the name suggests, it contains six different peptides, which help support the skin barrier and improve the appearance of elasticity over time. It also includes niacinamide to brighten the complexion and help refine the look of pores, along with hyaluronic acid to provide lightweight hydration. While I don't expect any one ingredient to perform miracles, I like that this formula focuses on supporting overall skin health rather than relying on harsh actives. It's gentle enough for daily use, even on my sensitive skin. I get the best results when I apply it immediately after exfoliating, and I also use it with my Medicube Age Booster Pro in Booster Mode. It provides the perfect amount of slip for the device, but more importantly, I've genuinely noticed that my skincare absorbs much better afterward. My skin feels like it drinks in the rest of my routine instead of having products just sit on the surface. After using it consistently for over 18 months, my skin looks smoother, more hydrated, and noticeably more radiant. One of the biggest compliments I receive is that my skin has a healthy "glass skin" glow, and I honestly think this serum has been one of the key products that helped me achieve that. It leaves my skin looking fresh and luminous without ever feeling greasy or heavy. Pros: - Lightweight, essence-like texture that absorbs quickly - Six-peptide formula with niacinamide and hyaluronic acid - Helps improve the absorption of the skincare applied afterward - Layers beautifully with other skincare and makeup - Gentle enough for daily use on sensitive skin - Leaves skin looking hydrated, smooth, and radiant - Pairs exceptionally well with the Medicube Age Booster Pro Cons: - Results are gradual, so consistency is important. - If you're looking for dramatic overnight changes, this isn't that type of product. After more than a year and a half of consistent use, this is one of the few products I automatically repurchase before I run out. It doesn't rely on flashy claims or instant results—it simply makes my entire skincare routine work better. If your goal is healthier, more hydrated, glowing skin over time, I think this serum is absolutely worth adding to your routine.

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.

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.

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.

This product is great. It dries reasonably fast spreads easy with a little going a long way. I find it is effective at moisturizing my skin and improving appearance of texture, wrinkles, and glow. I work outside a lot so my skin is constantly being put through the ringer. Product has no odor which I consider important. Overall great value for money and I would buy again.

I’ve been using this snail mucin for almost a year, and it has become the one product I never want to run out of. At 53 years old, my skin has never looked smoother or more even. My complexion has a healthy glow, feels incredibly hydrated, and I really don’t have many deep fine lines. What I love most is how soft and plump my skin feels, especially when I wake up in the morning. It absorbs beautifully, isn’t sticky, and layers perfectly with the rest of my skincare routine. Over time, I’ve noticed brighter, calmer, healthier looking skin with a texture that’s noticeably smoother. I’ve actually received compliments on my skin, and I truly believe this product has played a big part in that. If you’re looking for something that delivers real results with hydration, texture, and radiance, I can’t recommend this enough. It’s earned a permanent place in my routine, and I’ll definitely keep repurchasing! 💕

Mi favorito, no puedo salir de casa sin usarlo. Deja la piel super hidratada, se nota cambio en tu piel desde la primer semana. Y dura muchísimo tengo 10 meses y aún tiene.

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.

المنتج اللي وصلني اصلي وترطيبه ونتيجته للبشره ثاني افضل نوع بيبتايد استخدمته

Okej

This toner-serum hybrid has quickly become my skincare MVP. It’s lightweight, absorbs fast, and leaves my skin feeling instantly plump and hydrated. The combination of peptides, niacinamide, and hyaluronic acid is like a triple-threat for smooth, glowing skin. After just a week, I noticed my skin looking brighter and more even. It layers beautifully under other products without feeling sticky, which is a huge plus. And it’s gentle enough for daily use, even on days when my skin feels a bit sensitive. If I had to point out a downside, the bottle isn’t travel-friendly—it’s a bit bulky, so decanting is a must for trips. Also, the hydration is amazing, but if you’re looking for heavy-duty anti-aging, you might need to pair it with a richer cream. Overall, it’s a fantastic product for anyone wanting that fresh, dewy look without the fuss. Perfect for beginners or skincare addicts alike! 4.8/5