COSRX The 6 Peptide Skin Booster Serum - 5.07 fl oz - Ulta Beauty
Highly rated
$25.00
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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 26495 reviews
42% would recommend
7 recommendations
5 out of 5 stars
4 April, 2026
originally posted on cosrx
This is in my skincare
[This review was collected as part of a promotion.] This is in my skincare routine morning and night. First time I have ever used a booster and won’t be my last. Such a great remedy for fine lines.
5 out of 5 stars
4 April, 2026
originally posted on influenster.com
Serum that packs peptides
[This review was collected as part of a promotion.] This is a great serum. It has visibly changed the texture of my skin. I feel like my skin looks plumper and more hydrated. The peptides are amazing and my skin feels super soft.
5 out of 5 stars
3 April, 2026
originally posted on influenster.com
Lightweight, hydrating serum that improves skin te
[This review was collected as part of a promotion.] I’ve been using this serum for a few weeks and really like how lightweight if feels on the skin . My skin looks more hydrated and smooth, and over time I’ve noticed a subtle improvement in texture and overall glow. It layers well with other skincare products and doesn’t cause irritation, which is a big plus. A little goes a long way, so the bottle last quite a while. Overall it’s a grate everyday serum if you looking to boots hydration and improve skin appearance.
5 out of 5 stars
2 April, 2026
originally posted on influenster.com
Great for Sensitive skin
[This review was collected as part of a promotion.] Great for my sensitive skin. I struggle to find products that don’t further irritate my skin but this was perfect which I really enjoyed. I am excited
5 out of 5 stars
2 April, 2026
originally posted on influenster.com
Refreshing
[This review was collected as part of a promotion.] I loved this product especially after a shower. It is so hydrating and easy to apply. It didn’t leave any sticky residue and was easy to combine with my other skincare
5 out of 5 stars
31 March, 2026
originally posted on cosrx
"I love the application and
[This review was collected as part of a promotion.] "I love the application and how it melts into my skin. I'll need more time to see the full results, but I'm impressed. "
4 out of 5 stars
30 March, 2026
originally posted on cosrx
Great
[This review was collected as part of a promotion.] Great. Quick absorption.
5 out of 5 stars
26 March, 2026
originally posted on influenster.com
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.
5 out of 5 stars
26 March, 2026
originally posted on influenster.com
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.
5 out of 5 stars
25 March, 2026
originally posted on cosrx
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
5 out of 5 stars
Thumbs up graphic, would recommend
25 March, 2026
Great Multi Purpose Serum
This is a great serum with multiple benefits. Very light weight and absorbs into the skin quickly. I use this after my toner. Has made a difference in my skin and it totally boosts the effectiveness of my other skincare products I use after. Highly recommend. Been using this twice a day for a year.
5 out of 5 stars
24 March, 2026
originally posted on influenster.com
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.
5 out of 5 stars
24 March, 2026
originally posted on cosrx
Completely transformed my skin. Smaller
[This review was collected as part of a promotion.] Completely transformed my skin. Smaller pores. Smoother texture.
5 out of 5 stars
23 March, 2026
originally posted on cosrx
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.
5 out of 5 stars
23 March, 2026
originally posted on influenster.com
Is it great
[This review was collected as part of a promotion.] It’s suitable for dry skin. It helps with texture and feels really great on the skin. The whole experience of using this skin booster is a great experience. Highly recommended.
5 out of 5 stars
23 March, 2026
originally posted on influenster.com
Amazinggg!!!
[This review was collected as part of a promotion.] This products made my skin smooth, soft, and firm with zero irritation. The packaging is simple and cute!! Absolutely love this product and will be buying again! Would recommend 100%
3 out of 5 stars
22 March, 2026
originally posted on influenster.com
Positive results.
[This review was collected as part of a promotion.] Overall the bottle is sleek and doesn't take up a ton of room in my travel bags or bathroom caddy. The small amount of product actually needed per use means this will last you for quite a while. Honestly, my husband usurped this serum and loves it. After application it feels tacky, but dries smooth leaving a natural skin/glow. My skin (and my husband's) looked visually better with a bit of a tightening effect, which you do feel. I would recommend this for people that want to feel the effects of a product and not just see them. For me the tightness was a little off putting despite the other positive effects.
5 out of 5 stars
22 March, 2026
originally posted on influenster.com
Weightless, watery texture
[This review was collected as part of a promotion.] This 6 Peptide Skin booster has worked its way into my daily skincare routine! This serum has a lightweight, watery texture that absorbs effortlessly into the skin and feels like you’re wearing nothing. The light rose scent is very pleasant and layers nicely with my other skincare products. After continued use I’ve noticed less breakouts, softer skin, and an overall improvement.
5 out of 5 stars
22 March, 2026
originally posted on influenster.com
It helps with improving skin texture and minimizin
[This review was collected as part of a promotion.] I have combination skin, so I was a little skeptical to use a serum. I was pleased to see that not only did my skin texture improve, but I didn't have to worry about having oily skin during the day. I feel like it did help with minimizing my large pores.
5 out of 5 stars
21 March, 2026
originally posted on cosrx
So far so good! I’ve
[This review was collected as part of a promotion.] So far so good! I’ve only recently tried this product. But, its great so far.