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COSRXThe 6 Peptide Skin Booster Serum

19.25 €
42 reviews

Size: 150 ml

Size: 150 ml
19.25 €
    🚛 Pick-up points Overseas Express: above 35 € free, up to 35 € - 3.5 €. Delivery usually takes up to 4 business days.

    🚛 Courier Overseas Express: above 39 € free, up to 39 € - 3.5 €. Delivery usually takes up to 4 business days.

    🚛 Pick-up points Hrvatska pošta: above 39 € free, up to 39 € - 3.5 €. Delivery usually takes up to 4 business days.

    🚛 Courier Hrvatska pošta: above 39 € free, up to 39 € - 3.5 €. Delivery usually takes up to 4 business days.

    🚛 Pick-up points GLS: above 39 € free, up to 39 € - 3.5 €. Delivery usually takes up to 2 business days.

    🚛 Courier GLS: above 39 € free, up to 39 € - 3.5 €. Delivery usually takes up to 2 business days.

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Details
The 6 Peptide Skin Booster Serum is a versatile dermatologically tested serum infused with a powerful complex of 6 peptides and suitable for all skin types 😌 This multifunctional product stimulates collagen production to restore elasticity, while brightening and providing pore care ✨ COSRX brand product contains niacinamide for a natural complexion, as well as hyaluronic acid for skin hydration. Thanks to its watery texture, it is easily absorbed, leaving a feeling of freshness 😍
The manufacturer may change the ingredients without notifying us. For the full and up-to-date list of ingredients, please refer to the product packaging.
Aqua/Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Acetyl Hexapeptide-8, Copper Tripeptide-1, sh-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Serine, Alanine, GIycine, Threonine, Arginine, Proline, Betaine, Sodium PCA, Sodium Lactate, PCA, Glutamic Acid, Lysine HCI, Tocopherol, Dextran, Glycine Soja (Soybean) Oil, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate...
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After cleansing, apply the serum as the first step in skin care. Apply it several times to enhance the effect of the next care product.

Before the first use, we recommend conducting an allergy test. Find out how to do a patch test correctly🙂

The 6 Peptide Skin Booster Serum is a versatile dermatologically tested serum infused with a powerful complex of 6 peptides and suitable for all skin types 😌 This multifunctional product stimulates collagen production to restore elasticity, while brightening and providing pore care ✨ COSRX brand product contains niacinamide for a natural complexion, as well as hyaluronic acid for skin hydration. Thanks to its watery texture, it is easily absorbed, leaving a feeling of freshness 😍

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The 6 Peptide Skin Booster Serum

Rating and Reviews

5 stars
42 reviews
98%
would recommend based on 40 reviews
5 stars
38
4 stars
2
3 stars
2
2 stars
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1 star
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Reviews42

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Verified buyer
Peptide Skin Booster
6/18/2026

A very pleasant hydrating product with a watery texture that absorbs nicely into the skin and prepares it for the next steps👍. I would call it more like a base for a serum, it certainly does not meet the properties of a complex serum (at least for oily young skin).

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This review was left on ksisters.sk
Michaela
Ratnovce, Slovakia
Verified buyer
I recommend
6/16/2026

This serum has a light, watery consistency. My face doesn't feel sticky after using it. It contains copper peptides, which I appreciate. My skin feels calmer after use, with reduced redness. Overall, the serum is good, but I still need to see further results, as I haven't used it long enough to assess its firming properties.

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This review was left on ksisters.pl
Wioleta Wozniak
Warszawa, Poland
Verified buyer
Super!
6/14/2026

The serum has a very light, watery consistency and absorbs quickly. It may sting slightly at first, although "stir" is probably an understatement. In any case, it only stings at the very beginning of use. I can see an improvement in my skin's appearance—it's brighter and slightly firmer. The price is also very reasonable; I will definitely buy it again :)

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Ania S.
Poland
Verified buyer
Serum with peptides
5/27/2026

Thin serum. Absorbs quickly into the skin. Leaves a pleasant texture and I like the result on my face! I use it in the morning before my moisturizer!

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This review was left on ksisters.gr
Κατερίνα Δήμαρη
Greece
Verified buyer
Cosrx
5/10/2026

Great product, I highly recommend it

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This review was left on ksisters.pl
Aneta Paszkowska
Poland
Verified buyer
Great hydration
4/28/2026

I have sensitive and sometimes reactive skin. After just a couple of days of use, I've noticed my skin is better: more hydrated and looking healthier. It absorbs really well, and I can then apply my moisturizer. It doesn't leave any shine; it leaves my skin feeling great.

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This review was left on ksisters.es
Mar
Spain
Super
4/27/2026

I bought it by chance when the product was on sale. I've been using it for quite some time now. It leaves a moisturizing effect on the skin and absorbs immediately. It's not sticky. I have combination skin, and my skin doesn't feel greasy after using it.

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This review was left on ksisters.si
Polona
Slovenia
Verified buyer
Cosrx peptide serum
4/19/2026

The best thing with peptides I've ever had. Excellent consistency, suitable for oily skin too, instantly nourished skin. I recommend 👌👌

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This review was left on ksisters.sk
Andrea Zuziaková
Slovakia
Verified buyer
Booster
3/25/2026

Light, absorbs quickly and I love peptides. It really fits into any routine. It can replace toner, but I personally use it after it because it also contains KH and I want to get the most out of it. This product is a staple in my morning and evening routine.

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This review was left on ksisters.sk
anna zrakova
Pezinok, Slovakia
Verified buyer
Great serum for daily care
3/12/2026

I've been using this serum for a while now and I'm very happy with it. The texture is quite runny, but that's precisely why it's so easy to apply to the face and very economical. My skin feels soft and comfortable afterwards. It hasn't caused any allergies or irritation for me. The bottle is practical and overall it's a great basic skincare product. 😊

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This review was left on ksisters.at
Sabina
Germany
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