Index / Kerx / 6 Peptide Skin Booster Serum
Kerx

6 Peptide Skin Booster Serum.

Kerx
6 Peptide Skin Booster Serum
Serums

About this product

A lightweight peptide serum with six different peptides, amino acids, niacinamide, hyaluronic acid and glycerin designed to hydrate, firm and improve the appearance of fine lines and hyperpigmentation.

Guru Score

84%

Yay

Early verdict · Few reviews so far
2Gurus
2Yay
0Mixed
0Nay

What they liked

  • Hydrating and preps skin well in the morning
  • Better peptide blend than comparable products
  • Good value for the price

What they flagged

    Nothing. None of the experts who reviewed it raised a problem.

    What the gurus are saying

    This serum's six-peptide blend combines argireline and snake peptide (both with evidence for wrinkle-reducing effects) alongside copper peptides for anti-inflammatory benefits in a lightweight hydrating base with niacinamide for hyperpigmentation. The result tackles hydration, fine lines and skin tone in one multipurpose formula. Strong value came through, both in the substantial bottle size and breadth of actives, sustained by those who bought it again and again.
    Synthesized from 2 expert reviews · most recent take January 2025

    What the gurus are saying.

    Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

    All takes Yay takes Nay takes Mixed takes Hide sponsored
    Yay
    "This is the Kerx 6 Peptide Skin Booster. Last year this was a new launch that a lot of people just bought based on the hype, the fact it was new from a very popular skincare brand. This year the fact that it's still in the top 10 shows that people have been buying it and repurchasing it time and time again, so they must love it. And honestly I think it's a great product. In here you've got those six peptides which are going to boost collagen, help promote elastin, firmness in the skin. However you've got a lot more, and I think the key thing here is niacinamide, which is a fantastic pigment corrector. So this is like a peptide and hyperpigmentation treatment all in one. I love that it's got amino acids to lift, hydrate, firm. It's doing a lot. Now is this the most potent peptide on the market? It's not. But if you want a really nice easy to use peptide that has a few additional benefits, I don't think you can go wrong with this. Such a nice product and I always have one of these on hand because when I want a lightweight serum this is the one that I often reach for."
    All 2 takes from Mad About Skin
    BESTSELLING KOREAN SKINCARE 2024 - Skincare Favourites and Fails
    "This is the Kerx 6 Peptide Skin Booster. Personally I think this has a better peptide profile than the other one, so I think you get more peptide action and a better blend of peptides, just my personal experience. I like the fact that you've got niacinamide which is great for minimizing hyperpigmentation and amino acids to hydrate. This is a really nice lightweight peptide and hydrating serum. Definitely think in terms of the peptides in here this is one of the best. I'm not the biggest fan of Kerx but I'm happy to say this is one of the best products that the brand has to offer."
    KOREAN SKINCARE WORLD RANKINGS - Bestselling Korean Skincare 2025
    "This is the Kerx 6 Peptide Skin Booster. Last year this was a new launch that a lot of people just bought based on the hype, the fact it was new from a very popular skincare brand. This year the fact that it's still in the top 10 shows that people have been buying it and repurchasing it time and time again, so they must love it. And honestly I think it's a great product. In here you've got those six peptides which are going to boost collagen, help promote elastin, firmness in the skin. However you've got a lot more, and I think the key thing here is niacinamide, which is a fantastic pigment corrector. So this is like a peptide and hyperpigmentation treatment all in one. I love that it's got amino acids to lift, hydrate, firm. It's doing a lot. Now is this the most potent peptide on the market? It's not. But if you want a really nice easy to use peptide that has a few additional benefits, I don't think you can go wrong with this. Such a nice product and I always have one of these on hand because when I want a lightweight serum this is the one that I often reach for."
    Yay
    "I wasn't expecting much from this product and boy did it deliver. It's very hydrating. It has glycerin and it also has a variety of amino acids which are naturally found in skin's outermost layer and help with moisture retention and barrier function. But it has a variety of peptides. Peptides can be helpful for hydrating the skin and some peptides do have some evidence, albeit mostly limited to industry studies, demonstrating that they could be helpful for improving the appearance of fine lines around the eyes specifically. This has argireline, which a lot of people claim is Botox in a bottle, doesn't actually get into the skin to work at the level of the neuromuscular junction, but it is one of the peptides for which there is some evidence that it improves the appearance of wrinkles. There's also another similar peptide as far as improving the appearance of wrinkles, and some people claiming it's kind of like a Botox-esque peptide, that is snake peptide, that also is in this. And it has a variety of copper peptides which have anti-inflammatory properties and again are soothing and good for hydration. This has niacinamide, so I like that. Good for not just the moisture barrier but for dark spots and redness. You get a lot of product in this bottle. You don't need very much to create a thin film on the skin surface."
    All 2 takes from Dr Dray
    The Best Skincare Of 2024
    "I wasn't expecting much from this product and boy did it deliver. It's very hydrating. It has glycerin and it also has a variety of amino acids which are naturally found in skin's outermost layer and help with moisture retention and barrier function. But it has a variety of peptides. Peptides can be helpful for hydrating the skin and some peptides do have some evidence, albeit mostly limited to industry studies, demonstrating that they could be helpful for improving the appearance of fine lines around the eyes specifically. This has argireline, which a lot of people claim is Botox in a bottle, doesn't actually get into the skin to work at the level of the neuromuscular junction, but it is one of the peptides for which there is some evidence that it improves the appearance of wrinkles. There's also another similar peptide as far as improving the appearance of wrinkles, and some people claiming it's kind of like a Botox-esque peptide, that is snake peptide, that also is in this. And it has a variety of copper peptides which have anti-inflammatory properties and again are soothing and good for hydration. This has niacinamide, so I like that. Good for not just the moisture barrier but for dark spots and redness. You get a lot of product in this bottle. You don't need very much to create a thin film on the skin surface."
    Ultimate Skincare Holiday Gift Guide 2024
    "This is such a great value product. I like putting this on in the morning as the first step of my skincare routine kind of to prep my skin, hydrate it, get the antioxidants on board. It has a variety of peptides which are good for moisturizing the skin. It also has niacinamide which is good for redness, dark spots, the moisture barrier, and is an antioxidant. It also has a variety of amino acids which are part of skin's natural moisturizing factors so really good for just keeping the skin hydrated. And it has hyaluronic acid in it as well."

    Frequently asked.

    What is Kerx 6 Peptide Skin Booster Serum?

    A lightweight peptide serum with six different peptides, amino acids, niacinamide, hyaluronic acid and glycerin designed to hydrate, firm and improve the appearance of fine lines and hyperpigmentation.

    Is Kerx 6 Peptide Skin Booster Serum worth it?

    Yes. All 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 84%.

    What is Kerx 6 Peptide Skin Booster Serum's Guru Score?

    Kerx 6 Peptide Skin Booster Serum holds a Guru Score of 84%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.

    Who is Kerx 6 Peptide Skin Booster Serum best for?

    Kerx 6 Peptide Skin Booster Serum is generally suited to mature skin.

    Similar products worth a look.

    Other products the same gurus have weighed in on, plus more from this brand and category.

    Compare side by side →

    Share this score

    Add this badge to your blog or website. It links back to this page and updates itself when the experts change their minds. Free, no sign-up.

    Then paste it into your site's HTML or embed block.

    This week's top beauty news, in your inbox.

    A weekly read of the takes worth catching up on: the raves, the splits, the ones the gurus won't shut up about. Free, no spam, unsubscribe whenever.

    Subscribe to the digest