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COSRX The 6 Peptide Skin Booster Serum - Ulta Beauty
$25.00
In Stock
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At a glance
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About this item
Highlights
- Promotes the production of collagen for a more plump complexion
- Controls excess sebum and reduces the appearance of pores
- Addresses uneven texture and tone
- Lightweight texture makes easy to layer
- Suitable for all skin types and can be used in any season
Description
The 6 Peptide Skin Booster Serum contains 6 multi peptides that boosts improves overall skin condition such as; minimizing pores, reducing the appearance of fine lines, smoothing skin texture, and evening out the skin tone. It is perfect to use as the first step of skincare routine.
Key Ingredients:
SH-Polypeptide-121: Promotes collagen production and leaves your skin looking plump
Copper Tripeptide-1: Evens the skin texture
Dipeptide Diaminobutyroyl Benzylamide Diacetate: Controls excess sebum and reduces the appearance of pores
Oligopeptide-68: Brightening overall complexion
Palmitoyl Tripeptide-8: Soothes and reduces skin sensitivity by supporting your skin barrier
Acetyl Hexapeptide-8: Smooth fine lines and improve overall firmness
How to use:
After cleansing you may use this serum as the first step of skin care. Spread the serum on the entire face and you may apply several times to amplify the effect of the next serum or ampoule.
All COSRX products are dermatologist-tested, hypoallergenic, paraben-free, sulfate-free, phthalate-free, and alcohol-free.
Key Ingredients:
SH-Polypeptide-121: Promotes collagen production and leaves your skin looking plump
Copper Tripeptide-1: Evens the skin texture
Dipeptide Diaminobutyroyl Benzylamide Diacetate: Controls excess sebum and reduces the appearance of pores
Oligopeptide-68: Brightening overall complexion
Palmitoyl Tripeptide-8: Soothes and reduces skin sensitivity by supporting your skin barrier
Acetyl Hexapeptide-8: Smooth fine lines and improve overall firmness
How to use:
After cleansing you may use this serum as the first step of skin care. Spread the serum on the entire face and you may apply several times to amplify the effect of the next serum or ampoule.
All COSRX products are dermatologist-tested, hypoallergenic, paraben-free, sulfate-free, phthalate-free, and alcohol-free.
Scent: Unscented
Health Facts: Paraben-Free
Product Form: Serum
Beauty Purpose: Fine Line Reduction, Skin Texture Improvement, Pore Reduction, Skin Tone Improvement
Recommended Skin Type: Acne-Prone, Combination, Dry, Mature, Normal, Oily
TCIN: 91503677
UPC: 8809598455658
Item Number (DPCI): 342-01-7108
Origin: Imported
Healthcare Disclaimer:
Content on this site is for reference purposes only. Target does not represent or warrant that the nutrition, ingredient, allergen and other product information on our Web or Mobile sites are accurate or complete, since this information comes from the product manufacturers. On occasion, manufacturers may improve or change their product formulas and update their labels. We recommend that you do not rely solely on the information presented on our Web or Mobile sites and that you review the product's label or contact the manufacturer directly if you have specific product concerns or questions. If you have specific healthcare concerns or questions about the products displayed, please contact your licensed healthcare professional for advice or answers.
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 1.73 inches length x 1.93 inches width x 6.68 inches height
Estimated ship weight: 0.48 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
Q: Please provide the actual ingredients list as shown on package/bottle.
submitted by detailsdetails - 6 months ago
A: Full ingredient list from COSRX website: 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
submitted byAnna B - 2 months agoA: Collagen Boosting SH-Polypeptide-121 Retexturize Copper Tripeptide-1 Excess Sebum & Pore Care Dipeptide Diaminobutyroyl Benzylamide Diacetate Brightening Oligopeptide-68 Soothing Palmitoyl Tripeptide-
submitted byTammyRN - 3 months ago
Q: what is the percentage of copper peptide?
submitted by heathjez - 4 months ago
A: The Copper Tripeptide-1 is less than .1% of the ingredients.
submitted byCOSRX - 1 month agoBrand expert
Q: Ingredients list please!
submitted by detailsdetails - 8 months ago
A: Full ingredient list from COSRX website: 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
submitted byAnna B - 2 months ago
Q: How much is in this bottle? Could not find ounces?
submitted by Tlynn - 1 year ago
A: A photo on one of the reviews shows it as being a large bottle: 150ml, which is about 5 oz.
submitted byElliptigo Girl - 1 year ago
Q: Is it breastfeeding friendly
submitted by Rai - 1 month ago
Q: Hi, can I use a vitamin c serum after applying this? I've read that copper peptide and vitamin C used in the same routine cancel each other's benefits out
submitted by AnneAnneAnneAnneAnne - 8 months ago
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Guests are saying
The Cosrx 6 Peptide Skin Booster Serum has garnered positive feedback for its lightweight, hydrating formula that absorbs quickly without leaving a sticky residue. Guests appreciate its ability to improve skin texture, tone, and hydration, making it a valuable addition to their skincare routines. The product is scent-free, suitable for various skin types, and comes in a convenient pump bottle, enhancing its usability and effectiveness. Many guests have reported visible improvements in their skin after consistent use.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.6 out of 5 stars with 26404 reviews
50% would recommend
4 recommendations
5 out of 5 stars
4 January, 2026
originally posted on influenster.com
Acting as an uplifted to my skin . Preps skin, hyd
[This review was collected as part of a promotion.] Preps skin, hydrates, helps absorption. It is a wonderful product especially during winter when skin feels dull and chappy ! It hydrates and restore making skin plump for long.
5 out of 5 stars
2 January, 2026
originally posted on cosrx
Love this. Absorbs into the
[This review was collected as part of a promotion.] Love this. Absorbs into the skin. Feels light, not oily or greasy. Great under makeup
2 out of 5 stars
1 January, 2026
originally posted on influenster.com
meh
[This review was collected as part of a promotion.] pros: nice packaging, product comes out smoothly, never had any issues with leaking.. cons: feel like it did literally nothing for skin. Didn’t irritate me also provided no benefits.
5 out of 5 stars
31 December, 2025
originally posted on influenster.com
Lightweight, hydrating serum that preps and smooth
[This review was collected as part of a promotion.] I’ve been using the COSRX 6 Peptide Skin Booster Serum daily and I love how lightweight and hydrating it feels. It absorbs quickly without any sticky residue and layers well under my skincare and makeup. My skin feels smoother, more plump, and well-prepped after using it. It’s gentle, fragrance-free, and perfect for boosting overall skin hydration and texture.
5 out of 5 stars
30 December, 2025
originally posted on influenster.com
New fav!
[This review was collected as part of a promotion.] Talk about a skin booster! Love it for my skin. The smell was good. I feel like I could use those in my daily routine! Would definitely recommend to everyone
5 out of 5 stars
29 December, 2025
originally posted on cosrx
Only used once but my
[This review was collected as part of a promotion.] Only used once but my skin looks so bright and it goes on so easily
5 out of 5 stars
28 December, 2025
originally posted on cosrx
This is my favorite skincare
[This review was collected as part of a promotion.] This is my favorite skincare product. It helps even skin tone, and I no longer have break out acne when I use it every day. It lasts about 2 months for me too.
5 out of 5 stars
27 December, 2025
originally posted on cosrx
This is a amazing product
[This review was collected as part of a promotion.] This is a amazing product , i really like it, i buy another one.
5 out of 5 stars
23 December, 2025
originally posted on influenster.com
Great inexpensive booster
[This review was collected as part of a promotion.] I really enjoyed this peptide booster overall. It made my skin feel very soft and moisturize. It absorbed quickly without leaving a sticky texture. It was definitely not very dry and had no fragrance. I really enjoyed this. I have not repurchased, but I would consider in the future.
5 out of 5 stars
19 December, 2025
originally posted on influenster.com
Lightweight serum that gives an instant glow
[This review was collected as part of a promotion.] This is my first time trying this serum, so this is just my first impression. The texture is lightweight, absorbs quickly, and doesn’t feel sticky on my skin. After applying, my skin feels softer and looks more hydrated with a healthy glow. I didn’t experience any irritation so far and I’m excited to keep using it to see long-term results.
5 out of 5 stars
18 December, 2025
originally posted on cosrx
I enjoy the smooth texture
[This review was collected as part of a promotion.] I enjoy the smooth texture and dewy glow it gives my skin.
4 out of 5 stars
16 December, 2025
originally posted on influenster.com
Great buy
[This review was collected as part of a promotion.] Great product. My skin loves this product and I love that it isn’t pricey. I used some other products from this brand as well. I had no irritation and my skin glowed with the use of this product
5 out of 5 stars
13 December, 2025
originally posted on cosrx
I love how the serum
[This review was collected as part of a promotion.] I love how the serum makes my skin feel soft and hydrated. I do suggest applying the serum when your face is a bit damp for best effect during winters!
5 out of 5 stars
12 December, 2025
originally posted on influenster.com
I love it
[This review was collected as part of a promotion.] This one of good brand I regular use before used it clean my face first and apply on my face regularly their product really consistency and give our face moisture and smooth
5 out of 5 stars
11 December, 2025
originally posted on cosrx
This has become my new
[This review was collected as part of a promotion.] This has become my new obsession. It is the perfect way to enhance the effectiveness of the serums and ampoules that i apply right after. I love how smooth it glides on and even despite the layers of it needed (according to the directions on the bottle), it NEVER feels like its clogging my pores.
5 out of 5 stars
10 December, 2025
originally posted on cosrx
This is such an easy
[This review was collected as part of a promotion.] This is such an easy way to give my skin all the nutrients it needs without needing to buy 10 different products.
5 out of 5 stars
8 December, 2025
originally posted on cosrx
I use it in both
[This review was collected as part of a promotion.] I use it in both my morning and evening skincare routine and it feels very hydrating on skin and will be re-ordering soon again before I run out. The bottle lasts a good amount of time since using it twice a day.
5 out of 5 stars
8 December, 2025
originally posted on influenster.com
Thin Comfortable Texture
[This review was collected as part of a promotion.] One of my new favorite products!!! This serum goes on very very thinly and feels so lightweight. I don’t feel a residue and it is thin enough for me to use another hydrating serum and/or a moisturizer. When my skin is dry and needs extra love, I love that I can use this to help my other hydrating serum and moisturizer work even better!
5 out of 5 stars
7 December, 2025
originally posted on influenster.com
Best serum
[This review was collected as part of a promotion.] This peptide serum works really well and helps prevent my breakouts! So far I have not had any issues with the quality of this serum! This serum has no smell and doesn’t irritate your face at all, I 100 %recommend this product!
3 out of 5 stars
5 December, 2025
originally posted on influenster.com
Ehh
[This review was collected as part of a promotion.] I didn’t not like the smell at all. I couldn’t get passed it. I didn’t see much of a difference in my skin. So I can’t really say I liked it or not. Probably won’t purchase again.