The COSRX 6 Peptide Skin Booster Serum is a lightweight, toner-like product that the brand says to apply after cleansing and before other serums and moisturizer. A shopper quoted by Us Weekly said it took “10 years off” their skin and made it look as though they had Botox—but that is one person’s impression, not evidence of an age reduction or Botox-like results.
Which serum is the article talking about?
Us Weekly calls the product the “Cosrx 6x Peptide Collagen-Booster,” while COSRX’s official product page names it The 6 Peptide Skin Booster Serum. The names point to the same likely product, but confirm the listing, size, and seller before buying: the Amazon listing linked by Us Weekly may not always show the same variant or current offer.
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COSRX lists the serum in a 150 mL (5.07 fl oz) size. Its product page displayed $25 when reviewed; Us Weekly reported $16 on October 7, 2026, down from $25. Those are dated listings, not a guarantee of today’s price or availability. Check COSRX’s product page for its current product information.
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Does it really look like Botox?
That comparison comes from an anonymous shopper review reproduced by Us Weekly: “I am 34 with lots of dynamic wrinkles and some starting fine lines, and I feel like it took 10 years off my skin. It truly looks like I got Botox.” It describes that shopper’s impression; it does not establish that the serum removes 10 years from skin or works like Botox. The reviewed sources provide no clinical comparison between the serum and Botox.
#1 Best Overall
- Skin Booster Toner: Skin Boosting Serum with 6 Peptides including Copper Peptides that improve skin elasticity, fine lines, pores, and radiance. Boost your skin's condition and achieve multiple benefits with this serum.
- First Step of Skincare: This lightweight serum with a toner-like texture absorbs quickly into the skin, making it a great first step in your daily skincare routine. Its quick absorption allows for easy layering with other products.
- Key Ingredients: 6 Peptides that boost skin elasticity, reduce post hyperpigmentation, control pores, renew skin, calm and alleviate skin, and improve the look of fine lines and wrinkles.
- How to Use: After cleansing, apply 2-3 pumps of the Serum on your face. Layer on your favorite moisturizer for additional hydration. Best when used with the COSRX Snail 96 Essence and/or the COSRX Retinol 0.1 Cream.
Us Weekly also reproduces user comments describing changes to fine lines, texture, tone, and moisture. Those reports are consumer claims, not independently verified results. No named expert or COSRX representative quotation about this product appears in the reviewed sources.
What COSRX says is in it—and what its testing reports
The official ingredient list includes six peptides: SH-Polypeptide-121, Copper Tripeptide-1, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, and Acetyl Hexapeptide-8. It also lists niacinamide and sodium hyaluronate. COSRX associates the peptides with concerns such as firmness, fine lines, texture, pores, sebum, brightening, and soothing; those are the brand’s descriptions, not independent findings.
Rank #2
- Skin Booster Toner: Skin Boosting Serum with 6 Peptides including Copper Peptides that improve skin elasticity, fine lines, pores, and radiance. Boost your skin's condition and achieve multiple benefits with this serum. Now Available in a 2-Pack (5.07 fl. oz. Each)
COSRX reports the following figures from testing involving 20 subjects at Dermacosmetic Skin Science Laboratory Co., Ltd., conducted September 18–October 31, 2023:
| Reported measure | COSRX-reported result |
|---|---|
| Deep moisture | 162.5% increase |
| Skin texture | 76.4% improvement |
| Skin clarity | 40.1% boost |
| Radiance | 24.5% increase |
| Density | 22.2% improvement |
These are the brand’s reported trial metrics, not proof of Botox-like effects. The product page does not provide a full study report in the reviewed material, so the figures should be read with that limitation in mind.
Rank #3
- Snail 96% Peptide Booster Serum: The famous Snail 96 Essence, but with a boost! Boost all benefits of the Snail 96 Essence with the Peptide Booster Toner.
- The Real Snail Essence: Formulated with 96.3% Snail Secretion Filtrate, this essence repairs and rejuvenates the skin from dryness and aging. It improves skin vitality by reducing dullness and soothing dehydrated skin.
- Skin Booster Peptide Toner Serum: Skin Boosting Toner Serum with 6 Peptides that improve skin elasticity, fine lines, pores, and radiance. Boost your skin's condition and achieve multiple benefits with this toner.
- How to Use: 1. After cleansing, apply 2-3 pumps of the Peptide Booster Serum and gently pat to aid absorption. 2. Apply 2-3 pumps of the Snail 96 Essence. 3. Finish up with your favorite mosturizer if needed.
- Patch Test Recommended: Perform a Patch Test on the body before using on the face. Proceed to using on the face if no irritation occurs in 24 hours. Consult with your doctor immediately if irritation occurs.
How to use the serum
- Cleanse your face.
- Pat the booster over your face as the first skincare step after cleansing.
- Follow with your usual serum and moisturizer.
COSRX describes the formula as lightweight and toner-like. Its directions place it before other serums and moisturizer, rather than presenting it as a replacement for them.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to expect from the claim
The practical takeaway is that COSRX positions this as a first-step peptide booster, and it reports results from a small 2023 test. A shopper’s “10 years off” and Botox comparison is an anecdote, not a measured outcome. Anyone weighing the product should separate those individual impressions and brand-reported metrics from evidence of Botox equivalence, which the reviewed sources do not establish.
Quick Recap
Best Value
- A NEXT GEN ANTI-AGING CARE: Powered by the synergy of Copper Peptide 0.5%+ Bakuchiol 0.25%, this advanced formula helps improve fine lines, support elasticity, and maintain a firmer, more revitalized look.
- PLUMPING SERUM WITH DEEP HYDRATION: This daily plumping serum helps replenish moisture from within, leaving skin looking fuller, smoother, and naturally radiant.
- GENTLE DAILY PEPTIDE CARE WITH BAKUCHIOL: Formulated with bakuchiol, this low-irritation formula can be used daily to help improve the look of pores, texture, and overall skin clarity.
- EARLY SIGNAL CARE: Designed to address the first visible signs of skin change before pores look more pronounced, fine lines begin to settle, and red marks appear to linger longer on the skin.
- SKIN REMODELING: Designed to help reactivate the skin’s natural renewal process and support the extracellular matrix, improving the look of texture, firmness, and overall skin clarity.
Rank #4
- Miniature version of COSRX The 6X Peptide Skin Booster Serum for convenient travel or trial use.
- Skin Booster Toner: Skin Boosting Serum with 6X Peptides that improve skin elasticity, fine lines, pores, and radiance. Boost your skin's condition and achieve multiple benefits with this serum.
- First Step of Skincare: This lightweight serum with a toner-like texture absorbs quickly into the skin, making it a great first step in your daily skincare routine. Its quick absorption allows for easy layering with other products.
- Key Ingredients: 6 Peptides that boost skin elasticity, reduce post hyperpigmentation, control pores, renew skin, calm and alleviate skin, and improve the look of fine lines and wrinkles.
- How to Use: After cleansing, apply 2-3 pumps of the Serum on your face. Layer on your favorite moisturizer for additional hydration. Best when used with the COSRX Snail 96 Essence and/or the COSRX Retinol 0.1 Cream.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
