Sponsored
COSRX The 6 Peptide Skin Booster Serum - Ulta Beauty
$6.30 reg $9.00
Sale
save $2.70 (30% off)In Stock
Eligible for registries and wish lists
At a glance
Sponsored
About this item
Highlights
- Provides overall skin benefits such as pore&sebum care, increased skin firmness, reduction of fine lines, smoother skin texture, and a more even skin tone
- Improves skin texture and tone with daily use
- Non sticky, lightweight texture to absorb quickly
Description
The 6 Peptide Skin Booster Serum from COSRX enhances overall skin condition as your first step serum.
Key Ingredients:
SH-Polypeptide-121: Collagen Boosting & Plumping
Copper Tripeptide-1: Retexturize
Dipeptide Diaminobutyroyl Benzylamide Diacetate: Excess Sebum & Pore Care
Oligopeptide-68: Brightening
Palmitoyl Tripeptide-8: Soothe & Reduce Skin Sensitivity
Acetyl Hexapeptide-8: Smooth Fine Lines & 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: Collagen Boosting & Plumping
Copper Tripeptide-1: Retexturize
Dipeptide Diaminobutyroyl Benzylamide Diacetate: Excess Sebum & Pore Care
Oligopeptide-68: Brightening
Palmitoyl Tripeptide-8: Soothe & Reduce Skin Sensitivity
Acetyl Hexapeptide-8: Smooth Fine Lines & 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
Trial/Mini/Travel Size: Yes
Health Facts: Alcohol-Free
Product Warning: Eye irritant
Product Form: Liquid
Beauty Purpose: Fine Line Reduction, Anti-Aging, Acne-Prone, Combination, Dark Spot Reduction, Pore Reduction, Oil Control, Brightening, Smoothing, Anti-Acne
Recommended Skin Type: Acne-Prone, Combination, Dry, Mature, Extra Sensitive, Normal, Oily, Sensitive
TCIN: 94264826
UPC: 8809598455900
Item Number (DPCI): 342-01-2114
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: 1.07 inches length x 1.07 inches width x 1.14 inches height
Estimated ship weight: 0.11 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 - 4 months ago
A: 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 - 1 month 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: what is the percentage of copper peptide?
submitted by heathjez - 1 month ago
Q: Ingredients list please!
submitted by detailsdetails - 6 months 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 - 6 months ago
Frequently bought together
$5.95 - $17.50
reg $8.50 - $25.00 Sale
4.5 out of 5 stars with 3417 ratings
$10.50 - $18.20
reg $15.00 - $26.00 Sale
4.6 out of 5 stars with 3022 ratings
$3.50 - $10.50
reg $5.00 - $15.00 Sale
4.8 out of 5 stars with 249 ratings
Discover more options
Related Categories
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 26333 reviews
50% would recommend
4 recommendations
5 out of 5 stars
26 October, 2025
originally posted on cosrx
One week in and I
[This review was collected as part of a promotion.] One week in and I can already see a difference in my skin! Smoother surface and lightened sun spots already.
4 out of 5 stars
23 October, 2025
originally posted on influenster.com
Being consistent will get results!
[This review was collected as part of a promotion.] I’ve been using the COSRX 6-Peptide Skin Booster Serum for a while now, and I’m really liking it! It’s super light and refreshing, and you can layer it a couple times for an extra boost. My skin’s been smoother, brighter, and way more hydrated. Trying to be more consistent with it because it actually works. No scent really and I like the size of bottle.
5 out of 5 stars
20 October, 2025
originally posted on influenster.com
Good product
[This review was collected as part of a promotion.] This is such a great product. I definitely recommend. I’m not sure about the ingredients because it’s not written in English but absorbs very well. The texture is amazing and the packaging is a basic bottle. It has no scent
5 out of 5 stars
20 October, 2025
originally posted on influenster.com
Absorbs easily, none sticky
[This review was collected as part of a promotion.] This serum is incredible! I enjoyed its light clear slip-like texture & it was easy for my skin to absorb! There is no scent which my skin appreciates!
5 out of 5 stars
18 October, 2025
originally posted on cosrx
What a skin hack! I
[This review was collected as part of a promotion.] What a skin hack! I put this on the minute my face is washed, and it sets a strong foundation for my skincare routine
5 out of 5 stars
17 October, 2025
originally posted on influenster.com
Great product
[This review was collected as part of a promotion.] Very easy to use and pump out. The texture is light weight and I honestly didn’t notice a fragrance. I feel like within weeks I could notice a difference in my gas, brighter and even a bit firmer.
5 out of 5 stars
17 October, 2025
originally posted on influenster.com
Lightweight and hydrating
[This review was collected as part of a promotion.] I actually got the COSRX 6 Peptide Skin Booster gifted from Influenster a while back, and I didn’t think much of it at first… but it’s seriously become one of my skincare staples. It’s super lightweight, absorbs fast, and makes my skin feel so smooth and hydrated. I love how it layers perfectly under other products — no stickiness, no pilling, just that nice glowy finish. I’ve been using it for about two years now and have repurchased it multiple times. Definitely one of those products I didn’t expect to love, but now I can’t skip it.
5 out of 5 stars
17 October, 2025
originally posted on influenster.com
Super plumping!
[This review was collected as part of a promotion.] This is super hydrating and very good for sensitive skin like mine. My mom became obsessed with it and always wants to buy a new one. So it’s also great for older skin for sure! Definitely helps even out the appearance of wrinkles & fine lines.
4 out of 5 stars
16 October, 2025
originally posted on influenster.com
Hydrating, effective, no fragrance
[This review was collected as part of a promotion.] I was given this product in exchange for my honest review. Formula of the product feels like a thicker water but more runny than a serum, it is something in between. I was using this as a toner after washing my face and before applying serum and moisturizer. If you pat it onto your face with your palms it will absorb quickly, calm, hydrate your skin and prepare it for next steps. I haven’t noticed any improvements in skin texture, it’s just moisturizing water-like toner, don’t expect wonders. But it definitely calms skin and makes it feel nicer that without it. Bonus-it doesn’t have a smell. I would recommend if you need extra hydration, just don’t expect miracles.
5 out of 5 stars
5 October, 2025
originally posted on influenster.com
Clear and clean
[This review was collected as part of a promotion.] My skin looks so good with this product and like it’s so much . My skin looks really healthy and clean. I use this every day and I am happy to trying this product! Packaging is nice and comfortable for use. Scent is nice and not sharp.
5 out of 5 stars
4 October, 2025
originally posted on influenster.com
It doesn’t hurt to add
[This review was collected as part of a promotion.] This product was honestly just a like for me . The texture was too watery for my liking but it definitely didn’t hurt to include in my in my skin care routine. But it didn’t make enough of an impact for me to repurchase but it’s worth finishing
5 out of 5 stars
2 October, 2025
originally posted on influenster.com
Perfection in a bottle!
[This review was collected as part of a promotion.] Had to buy another - too good! Simple, easy to understand packaging and instruction. No scent, and the lightest consistency! Love love love this product in my routine
5 out of 5 stars
2 October, 2025
originally posted on influenster.com
Best
[This review was collected as part of a promotion.] Very good ingredients, honestly one of the best I've tried on my face. It's super soft, I can see the difference, I love it. Yes, I recommend it, not only because I got it, I honestly loved it.
4 out of 5 stars
1 October, 2025
originally posted on influenster.com
Lightweight simple step to add to your skincare ro
[This review was collected as part of a promotion.] Packaging was clean & simple which fit the product itself. I liked that it was light on my face. It was also great to not have to wait long for the product to absorb into my skin.
5 out of 5 stars
1 October, 2025
originally posted on influenster.com
Amaizing
[This review was collected as part of a promotion.] Corxs is one of my favorite Korean brands and this peptide serum is amazing. The texture is super light, fragrance-free and absorbs quickly. I would really buy it again, I have seen a great improvement in my face. It has a number of ingredients that are incredible for the skin, if I recommend it.
5 out of 5 stars
30 September, 2025
originally posted on influenster.com
Must have
[This review was collected as part of a promotion.] I love the way this product feels on my skin. I’ve been using it for months it had no scent and just a dime size works perfectly. I love how moisturizing this product is.
3 out of 5 stars
30 September, 2025
originally posted on influenster.com
Not great for me
[This review was collected as part of a promotion.] Packaging was ok. Scent was pleasant. I didn’t care for the way it made my skin feel. I found it to be kinda watery. I would not use this product again. Kinda disappointing.
4 out of 5 stars
30 September, 2025
originally posted on influenster.com
It was okay!
[This review was collected as part of a promotion.] The packaging was very nice! The product is very clear about all the ingredients in it but I would not recommend this product for people with rosacea. It triggered my rosacea flare up after a few uses. I
5 out of 5 stars
30 September, 2025
originally posted on cosrx
I have severe dry skin,
[This review was collected as part of a promotion.] I have severe dry skin, and before I cleanse i use this, then I use Mucin power essence, all in one cream and finish it off with Proplis light cream. I have to say this has helped with my dry skin even my makeup looks so nice.
5 out of 5 stars
22 September, 2025
originally posted on influenster.com
So refreshing!
[This review was collected as part of a promotion.] Absolutely love this product! Been using this for a few months and it’s been amazing so far! It feels great on my skin and makes my face feel refreshed and clean.