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This popular peptide serum is down to $21: 'The plumping effect is incredible'
Over 20,000 shoppers have snapped up this collagen-boosting CosRx toner in the past month, and the reviews are glowing.
Perky, bouncy skin is possible as we get older — yes, without a time machine. We've just got to put in a bit more effort than we did as teens (which for me, a typical Gen X-er, was zilch). K-beauty brand CosRx, known for its No. 1 bestselling (and beauty editor-hailed) snail mucin serum, makes that a lot easier. Its CosRx 6x Peptide Collagen Booster Toner Serum, which over 20,000 Amazon shoppers have scooped up in the past month alone, is on sale for just $21.
Just dewy it. Add a few drops of this lightweight, peptide-rich toning serum after cleansing. Finish with your favorite moisturizer, and prepare for compliments.
Why is it a good deal? 💰
With all the benefits that are packed into this bottle, we think the full $25 would be worth it, but we sure appreciate the $4 off. We've seen it drop a bit lower, but we've also seen it spike to nearly twice its retail price. Our advice: Grab it now and start pampering your skin stat.
Why do I need this? 🤔
This lightweight toning serum is a multitasker-and-a-half that's suited to all skin types. It contains six different peptide chains to support skin elasticity. When used topically, peptides can penetrate deeply into skin and encourage collagen and elastin production, which can make wrinkles and fine lines less noticeable. You'll also get extra hydration and a bouncy-skin boost from humectants such as hyaluronic acid. And it's not just for anti-aging, either. This serum is formulated to target everything from hyperpigmentation and dry skin to large pores and acne. Plus, it's fragrance- and paraben-free.
To use it, simply wash your face like normal and apply a few pumps to damp skin. Once you're dry, you'll be prepped and ready for your moisturizer of choice. And, of course, make sure you've got some SPF in there too.
What reviewers say 💬
This serum has garnered glowing five-star reviews from over 2,800 equally glowing fans.
Pros 👍
"Almost instantaneous results," wrote a fan. "It firms up my skin, making my pores appear smaller, and it gives such a healthy glow. Their snail mucin products seem to actually be healing my mature skin. For reference, I'm over 60 with combination skin and blemish-prone. I had many horrific sunburns in my youth (SPF wasn't big back in the day) and many years of skin neglect. I'm now trying to heal some of the previous neglect and damage and this line seems to be getting me results."
Another thrilled five-star reviewer said: "Game changer! I've used this for about a month and my skin's pores appear smaller, skin feels tightened, moisturized and the radiance is out of this world. My skin looks so refreshed that I think that I look 15 years younger."
"I have now ordered my third bottle," said this repeat buyer. "I will use this forever! This has been so amazing for my skin. ... I am in my 40s so I have been more consistent due to concerns of aging, and I have gotten so many compliments on my skin after I added this in. I have noticed a difference in overall skin appearance — redness gone, blemishes gone and my skin looks so healthy and feels healthier. I have even had people ask if I had concealer on or a makeup primer or blurring primer on, and I have nothing on!"
"First and foremost, the plumping effect is incredible," raved a fourth fan. "My skin feels noticeably firmer and smoother, giving it a youthful, radiant glow. The hydration it provides is top-notch — my skin stays moisturized all day without feeling heavy or greasy. It layers beautifully under makeup and other skincare products."
Cons 👎
Of course, as with any new product, those with sensitive skin should begin slowly. This reviewer shared, "I really like this product, although my skin is a bit sensitive, so I prefer to use it every few days. I used to break out a lot on my face, especially between my eyebrows and where my glasses sit. However, while using this product, it helped reduce the redness and the area between my eyebrows was improving!"
While some fans have seen an immediate improvement, results vary. "It's not a product that gives you visible instant results. But my face feels more regulated during the day. I used to feel really tight in the morning, then super oily the rest of the day. Now I'm pretty normal," said a final shopper.
Reviewers say this toner makes their skin softer and more youthful looking. It even brought one fan another level of joy: "My face actually looks happier!"
The much-loved and lauded CosRx Snail Mucin Serum is also on sale:
With over 59,000 five-star reviews, this bestselling snail serum has a massive fan base. Users rave about how hydrated and bright their skin feels after using it. (Don't worry, no snails were harmed in the making of this product!)
For more, check out our beauty editor's full review.
The reviews quoted above reflect the most recent versions at the time of publication.
If you have Amazon Prime, you'll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $35 or more.)
