COSRX The 6 Peptide Skin Booster Serum - 5.07 fl oz - Ulta Beauty
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$25.00
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4.6 out of 5 stars with 4865 ratings
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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 26488 reviews
42% would recommend
7 recommendations
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
25 March, 2026
originally posted on http://www.ulta.com
Must Have
It's the start of morning and night routine. When I bought my first bottle, it was unclear to me the importance and if it was truly working. After completely using two bottles, I can tell the difference in my texture and glow if I skip this step.
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.
5 out of 5 stars
21 March, 2026
originally posted on influenster.com
Amazing!
[This review was collected as part of a promotion.] The holy grail for hydration! A MUST for dry skin. It goes on smooth without making my skin feel grease and absorbs nicely. I use this product day and night and it’s perfect for dry or combination skin
5 out of 5 stars
20 March, 2026
originally posted on cosrx
I love how this makes
[This review was collected as part of a promotion.] I love how this makes my skin feel! My skin is normally quite sensitive to products like this, but I've experienced no irritation, redness or uneven skin texture. In fact, it leave my skin feeling radiant and refreshed.
5 out of 5 stars
20 March, 2026
originally posted on cosrx
BEAUTIFUL RESULTS
[This review was collected as part of a promotion.] I love the way it leaves the skin of my clients. When I use this product on myself I apply before makeup and it leaves my look flawless. Korean skincare is on another level and I am obsessed. I highly recommend Korean products. If you want your skin to look plum and glowy and best of all HYDRATING. The 6 Peptide Skin Booster Serum is the best choice. Especially for people over the age of 30. Those crow's feet are starting to creep up on you. Keep the fine lines and wrinkles at bay for as long as possible. Packaging pumping for your skin!
5 out of 5 stars
19 March, 2026
originally posted on influenster.com
Hydrating Skin
[This review was collected as part of a promotion.] I absolutely love this serum- it’s now part of my skincare routine. And I have purchased about 3 bottles of this already. It always leaves my skin hydrated and glowing. If you want that glass-skin effect, this will definitely do that. It’s easy to apply as well, and a little goes a long way! I would say the pump could be better, since this is a serum I feel like the pump it has makes this drip a bit. Other than that, it leaves my skin hydrated, glowing, soft, supple and just looking young! Definitely recommend!
5 out of 5 stars
16 March, 2026
originally posted on cosrx
since consistency and provide a
[This review was collected as part of a promotion.] since consistency and provide a treatment for even tone and fine lines i saw improvement within 4 weeks
5 out of 5 stars
15 March, 2026
originally posted on cosrx
Balanced skin
[This review was collected as part of a promotion.] This product is necessary for my life now. whenever my skin is sensitive and irritating, this product brings it back to healthy balanced skin quickly