Skip navigation

Earn a $25 promo card when you buy $150 in gift cards online! Ends 4/5. Gift Cards & Restrictions

0
Main content
  1. Home
  2. Beauty
  3. Skin Care
  4. Serums & Treatments

The 6 Peptide Skin Booster Serum

COSRX

Current Price $25.00
7 people are viewing
Free returns anytime
Sold by Nordstrom
Get $40 off your next purchase! For new cardmembers. Terms apply. Apply Now
Nordy Club members earn 3X the points on beauty! Details

Details & care

What it is: A serum that boosts overall skin conditions, improving pores, sebum, firmness, fine lines, skin texture, skin tone and irritation.

What it does: The serum makes your skin soft and smooth and helps even out your skin tone and texture. It features a lightweight, nonsticky texture that absorbs quickly. It's perfect for those with complex skin concerns that want to improve overall skin conditions at once. It is the ideal first-step skin booster that can be paired with other products.

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

  • 5.07 oz.
  • Made in South Korea
  • Item #10403177

Shipping & returns

Free shipping. Free returns. All the time. Purchases made online can also be returned or exchanged at any Nordstrom store, free of charge. Read more about our shipping & returns policies.

Gift options

Choose your gift options at checkout. Some items may not be eligible for all gift options.

Free Pickup

  • Printed gift message (free)
  • Nordstrom gift box (free)
  • Fabric gift bag ($5)

Delivery

  • Email gift message (free)
  • Printed gift message (free)
  • Fabric gift bag ($5)
Need help finding the perfect gift? We've got you covered.
Shop Gifts

Reviews

(26177)
4.6 out of 5
Write a Review

Most helpful positive review

Mar 26, 2026
It helped clear my face.
[This review was collected as part of a promotion.] I loved the packaging. It has no scent. With just a little amount you get all over your face. I lasted me forever till a year later and I still have some left. I use it every day. It absorbs to the skin super nicely and you get a glowy finish.
JuanaP
Reposted from influenster.com

Most helpful critical review

Jan 26, 2026
Not for me
[This review was collected as part of a promotion.] Irritated my skin and caused me to break out really bad. It just did not work for my skin. My skin is sensitive. Consistency is watery. Texture silky.
meganc724_1634
Reposted from influenster.com
5 stars
74%
4 stars
19%
3 stars
6%
2 stars
1%
1 star
1%

Pros:

Cons:

Current reviews don’t mention any.
Sort by Most Helpful
JuanaP
Reposted from influenster.com
Mar 26, 2026
It helped clear my face.
[This review was collected as part of a promotion.] I loved the packaging. It has no scent. With just a little amount you get all over your face. I lasted me forever till a year later and I still have some left. I use it every day. It absorbs to the skin super nicely and you get a glowy finish.
PhoebeD
Reposted from influenster.com
Mar 26, 2026
Good quality product
[This review was collected as part of a promotion.] Really great product. Goes on smooth, it’s nice and light. The quality is very good and I enjoy this brand. I felt like my skin looked better within a few days of using. I reconnected this product.
Janet F.
Reposted from cosrx
Mar 25, 2026
One Of COSRX's Best Products
[This review was collected as part of a promotion.] This Peptide Booster is a staple in my daily skin routine. It beats others hands down and I will never change this product brand. They dont skimp on product volume or ingredients. There is so much in the bottle that along with using on my face, neck and chest I also use it on my arms. If you are a peptide fan, and you should be if not, this product wont disappoint, I promise
EvaO
Reposted from influenster.com
Mar 24, 2026
Great on your skin
[This review was collected as part of a promotion.] I love the way it feels smooth on my face and more firm. It absorbs quite well into my skin and doesn’t leave any sticky or greasy feeling, just nothing but soft and smooth. I most definitely recommend this product.
Sarah R.
Reposted from cosrx
Mar 24, 2026
Completely transformed my skin. Smaller
[This review was collected as part of a promotion.] Completely transformed my skin. Smaller pores. Smoother texture.
Alyssa G.
Reposted from cosrx
Mar 23, 2026
I love this serum! It
[This review was collected as part of a promotion.] I love this serum! It is clearly helping to heal my acne. I feel like my skin overall has improved in all 6 of the categories since I started using it. I also like how light weitght it is. It's nice having a serum that doesn't feel sticky or heavy. It also wears very well under makeup.
Load 6 more reviews
The 6 Peptide Skin Booster Serum
COSRX
Current Price $25.00