COSRX The 6 Peptide Skin Booster Serum bottle, clear serum with a sleek design, suitable for skincare and hydration.
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
COSRX The 6 Peptide Skin Booster Serum bottle, clear serum with a sleek design, suitable for skincare and hydration.
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
COSRX The 6 Peptide Skin Booster Serum bottle, clear serum with a sleek design, suitable for skincare and hydration.
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
COSRX The 6 Peptide Skin Booster Serum bottle, clear serum with a sleek design, suitable for skincare and hydration.
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA
The 6 Peptide Skin Booster Serum - SKINZA

COSRX The 6 Peptide Skin Booster Serum

    £25.99 GBP
    £43.00 GBP
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    About Product

    Why is your skin still sagging, dull, and losing its bounce, even with a full skincare routine?

    Here's the uncomfortable truth: most serums tackle one problem at a time. One product for fine lines. Another for dullness. Another for pores. Another for hydration. By the time you've layered four products, you've spent a fortune, overloaded your skin, and you're still not addressing the real issue, your skin's scaffolding is weakening. Collagen signals are slowing. Skin cell communication is breaking down.

    Description:

    This is the serum for people who are done compromising. Whether your skin is showing early signs of ageing, struggling with persistent dullness, battling uneven texture, or losing the firmness it once had, the COSRX 6 Peptide Skin Booster was built for exactly that kind of complexity.

    Six distinct peptides, each chosen for a different function, firming, brightening, pore refinement, sebum control, soothing, and deep repair, work in concert within a featherlight, toner-weight formula. It absorbs in seconds, leaves zero residue, and starts communicating with your skin immediately.

    Clinically tested for sensitive skin, acne-prone skin, and hypoallergenic tolerability, this isn't just a luxury product; it's a precision tool. And at 150ml, it's a full course of treatment, not a trial-sized promise.

    Six targeted peptides. One seamless formula.

    Instead of buying separate solutions for wrinkles, dullness, pores, sagging, uneven tone, and sensitivity, this single booster addresses all of them in one effortless step.

    Visible lifting and firming, not just surface hydration.

    The peptide complex reaches beneath the surface to support your skin's structural proteins the difference between skin that looks plumped and skin that is genuinely stronger.

    Instant absorption, zero heaviness.

    The toner-weight texture means no greasiness, no pilling, no waiting. It sinks in within seconds and layers beautifully under any serum or moisturiser.

    Clinically proven safe, even for sensitive and acne-prone skin.

    Not just "dermatologist-approved" marketing language. This formula has undergone primary skin irritation testing, sensitive skin testing, and non-comedogenic testing on acne-prone skin.

    150ml of actual, meaningful product.

    Not the 30ml mini that runs out in three weeks. You're getting a generous, full-sized treatment — enough to genuinely see what six peptides can do for your skin over a complete skincare cycle.

    Works at every stage of the routine.

    Use it as a toner-step booster straight after cleansing, or layer it under your existing serum for an amplified multi-peptide effect.

     

    How To Use

    1. Use after cleansing as a toner before ampoule, serum or moisturizer.
    2. Dispense a few drops and pat gently over the face.
    3. Follow with serum and moisturizer.

    Key Benefits

    Benefits

    • Firms and improves elasticity with 6-peptide complex
    • Visibly lifts and tightens sagging skin
    • Smooths rough texture and refines pores
    • Brightens and evens skin tone
    • Boosts radiance and overall skin vitality
    • Lightweight, toner-like texture absorbs quickly
    • Clinically tested for sensitive and acne-prone skin
    • Non-comedogenic and hypoallergenic

    Skin Type


    Suitable for all skin types, especially those with complex skin concerns.

    Ingredients

    Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, Betaine, t-Butyl Alcohol, Sodium PCA, Sodium Lactate, Acetyl Hexapeptide-8, Copper Tripeptide-1, PCA, sh-Polypeptide-121, Serine, Alanine, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Glycine, Glutamic Acid, Lysine HCl, Threonine, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Arginine, Tocopherol, Oligopeptide-68, Proline, Dextran, Palmitoyl Tripeptide-8, Glycine Soja (Soybean) Oil, Hydrogenated Lecithin, Potassium Sorbate, Sodium Oleate

     

    FAQ'S

    What exactly is a peptide, and why does my skin need six of them?
    Peptides are short chains of amino acids — essentially the building blocks of proteins like collagen and elastin. Different peptides signal the skin to perform different functions: some encourage collagen production, others relax wrinkle-forming muscle contractions, and others brighten or soothe. Most serums include one or two peptides as supporting ingredients. This formula is built around six, each chosen for a distinct clinical function.

    Is this suitable for sensitive skin?
    Yes. This serum has been clinically tested for sensitive skin irritation and hypoallergenic tolerance. The inclusion of Allantoin and Palmitoyl Tripeptide-8 (an anti-inflammatory peptide) means it actively works to calm skin rather than challenge it. As always, a patch test is recommended if your skin is particularly reactive.

    Can I use this alongside prescription skincare like tretinoin or other actives?
    Peptides are generally compatible with most actives, including retinoids, vitamin C, and AHAs/BHAs. However, some research suggests very low pH environments (from high-strength vitamin C or acid exfoliants) can reduce peptide efficacy. To be safe, apply the booster first on a cleansed face, then layer your other actives on top — or alternate timing between morning and evening use.

    How soon will I see results?
    Skin texture and hydration improvements are often noticeable within 1–2 weeks of consistent use. More significant changes in firmness, fine lines, and tone typically become visible from 4–8 weeks onward. Peptides are not overnight miracle workers — they're long-game players that rebuild your skin's architecture gradually and sustainably.