The 6 Peptide Skin Booster Serum
The 6 Peptide Skin Booster Serum
Product Description
Product overview
A lightweight, toner-like serum featuring 6 powerful peptides to address fine lines, uneven texture, and loss of firmness. Clinically tested to improve skin elasticity, hydration, and radiance while prepping skin for enhanced absorption of subsequent skincare products.
6 Multi-Action Peptides
Comprehensive peptide complex targeting firmness, texture, pores, brightness, and soothing for multi-benefit anti-aging care.
Texture & feel
SENSORY6 Multi-Action Peptides
Comprehensive peptide complex targeting firmness, texture, pores, brightness, and soothing for multi-benefit anti-aging care.
Copper Peptide Technology
GHK-Cu (Copper Tripeptide-1) stimulates collagen and elastin production for improved skin firmness and wound healing.
Niacinamide Boost
Vitamin B3 helps regulate sebum, minimize pores, brighten skin tone, and strengthen the skin barrier.
Clinically Proven Results
Independent testing shows +162.5% hydration, +76.4% texture improvement, and +40.1% clarity enhancement.
Safety & compatibility
SAFENo retinoids, salicylic acid, hydroquinone, or chemical sunscreens. Peptides, niacinamide, and hyaluronic acid are considered safe during pregnancy.
Contains Glycine Soja (Soybean) Oil, Hydrogenated Lecithin, and Palmitoyl Tripeptide-8 which may feed Malassezia yeast.
Clinically tested by Dermacosmetic Skin Science Laboratory to not clog pores. Suitable for acne-prone skin.
Layers well with Vitamin C, Retinol, AHA/BHA, Ceramides, and Snail Mucin. Low-irritation formula for daily use.
Ingredient breakdown
INGREDIENTSAcetyl Hexapeptide-8 (Argireline) 1.4-2.1%Proven
Known as "Botox in a jar," this peptide targets wrinkles caused by facial muscle movement. Works by reducing muscle contractions that cause expression lines.
- Clinical Study: 10% solution reduced wrinkle depth by 17% in 15 days around the eyes.
- Mechanism: Targets the same wrinkle-forming pathway as Botox but through topical application.
Copper Tripeptide-1 (GHK-Cu) 1.2-1.7%Proven
A naturally occurring copper-peptide complex with unique wound healing and anti-aging properties. Stimulates collagen, elastin, and glycosaminoglycan production.
- Research: 1998 study showed increased procollagen production in 70% of participants.
- Benefits: Improves skin elasticity, clarity, firmness, and reduces lines and wrinkles.
Dipeptide Diaminobutyroyl Benzylamide Diacetate 0.5-1.15%Promising
A "Syn-Ake" type peptide targeting expression wrinkles similar to Argireline. Helps with pore and sebum control.
- Clinical Data: 4% concentration showed 21% smoother skin and up to 52% wrinkle reduction in 28 days.
- Effect: 80% of volunteers showed measurable smoothing effect.
Oligopeptide-68 (β-White) 0.4-0.9%Promising
A skin-brightening peptide with a unique mechanism targeting melanin production by inhibiting the MITF gene.
- Study: 5% formula used for 56 days: 87% reported more uniform skin tone, 91% felt brighter skin.
- Mechanism: Works on both constitutive (natural) and facultative (tanning) pigmentation.
Palmitoyl Tripeptide-8 0.2-0.75%Promising
A soothing peptide that helps calm and alleviate skin sensitivity. Reduces inflammation and helps skin recover from environmental stressors.
- Function: Anti-inflammatory properties help reduce redness and irritation.
Niacinamide (Vitamin B3) 1.6-2.5%Proven
A well-studied, multi-tasking active that supports skin barrier, regulates oil production, reduces acne, and improves skin tone.
- Benefits: Fights photodamage, reduces pigmentation marks, strengthens barrier function.
- Stability: Very stable ingredient that works well in almost any formulation.
44 ingredients
Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Acetyl Hexapeptide-8, Copper Tripeptide-1, SH-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Serine, Alanine, Glycine, Threonine, Arginine, Proline, Betaine, Sodium PCA, Sodium Lactate, PCA, Glutamic Acid, Lysine HCl, Tocopherol, Dextran, Glycine Soja (Soybean) Oil, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, t-Butyl Alcohol, Potassium Sorbate, Sodium Oleate
Where it fits in your routine
ROUTINEUse as the first step after cleansing to prep and awaken skin. Apply multiple layers to amplify the effects of your next serum or ampoule.
How to use
HOW TO USECleanse Your Face
Start with a clean, freshly washed face. Pat dry gently with a soft towel.
Dispense 2-3 Pumps
Press the pump dispenser to release the watery serum into your palms or directly onto your face.
Pat Gently Into Skin
Spread evenly over face and neck. Gently pat and press until fully absorbed. Can layer multiple times for enhanced effect.
Continue Your Routine
Follow with your next serum, moisturizer, and SPF (morning). Use twice daily for best results.
Who is it for?
WHOPerfect for you if:
- You want to prevent early signs of aging
- You have multiple skin concerns (texture, pores, dullness)
- You prefer lightweight, non-sticky textures
- You want a product that layers well with other actives
- You're looking for an affordable peptide serum
- You're pregnant or breastfeeding
- You want clinically-tested results
Consider alternatives if:
- You have fungal acne (malassezia folliculitis)
- You prefer thick, creamy serums
- You need heavy-duty anti-aging (consider retinol)
- You're allergic to soybean-derived ingredients
- You want visible dramatic results in under 2 weeks
Skin type compatibility
SKIN TYPESUltra-lightweight watery texture absorbs instantly without adding shine or greasiness. Niacinamide helps control sebum.
Provides hydration boost with hyaluronic acid and amino acids. Layer with a richer moisturizer for optimal results.
Balances well across different face zones. Lightweight enough for T-zone, hydrating enough for dry areas.
Fragrance-free, dermatologically tested formula. Contains soothing ingredients like allantoin. Clinically proven non-irritating.
Non-comedogenic tested. However, not suitable for fungal acne due to soybean oil content. Great for regular acne-prone skin.
Six peptides target multiple signs of aging. Copper peptide supports collagen production. Best used with retinol for enhanced results.
Results timeline
WEEK 6-8Instant Hydration & Glow
Skin feels immediately softer and more hydrated. Many users notice enhanced glow and smoothness within the first few days of daily application.
85% noticed improvementImproved Texture & Absorption
Skin texture begins to refine. Pores appear smaller. Other skincare products absorb better when layered on top.
78% noticed improvementClinical Results Visible
Independent clinical testing shows measurable improvements: +162.5% hydration, +76.4% texture improvement, +40.1% skin clarity enhancement.
100% reported smoother skinFirmness & Anti-Aging Benefits
Peptide benefits become more pronounced. Visible reduction in fine lines. Improved skin elasticity and firmness. Brighter, more even skin tone.
91% noticed brighter skinRatings by platform
42K+ REVIEWSPros & cons
BALANCEDPraised
- Exceptional value - 150ml at affordable price point
- Lightweight, non-sticky texture absorbs instantly
- Fragrance-free and gentle on sensitive skin
- Layers beautifully with other products
- Clinically proven results
- Six different peptides for multi-action benefits
- Great for beginners to anti-aging
- Pregnancy and breastfeeding safe
Criticized
- Not fungal acne safe (contains soybean oil)
- Results require 4+ weeks of consistent use
- Too watery for those who prefer thick serums
- Some find the pump dispenses too much product
- May not be enough for advanced aging concerns
- Rare reports of breakouts in sensitive individuals
Budget-friendly alternatives (dupes)
DUPES
Same peptide concept with Matrixyl and Argireline. Slightly thicker texture, smaller size (30ml). Contains lactococcus ferment which may trigger fungal acne. Great for targeted anti-aging.
Higher copper peptide concentration for more advanced anti-aging. Blue-tinted serum. Cannot be used with direct acids or vitamin C. Better for mature skin concerns.
Simpler formula with Matrixyl 3000 and Syn-Tacks. Smaller size (30ml). Lightweight texture. Good entry-level peptide option but fewer actives than COSRX.
Comparison with competitors
SIDE-BY-SIDE
Storage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight. Refrigeration not required but can extend shelf life.
Opaque pump bottle protects light-sensitive ingredients. Hygienic dispensing prevents contamination.
No - 150ml exceeds 100ml TSA liquid limit. Transfer to smaller container or purchase travel size (30ml).
Frequently asked questions
FAQYes, this serum is considered safe for use during pregnancy and breastfeeding. It contains no retinoids, salicylic acid, hydroquinone, or chemical sunscreens. The peptides, niacinamide, and hyaluronic acid in this formula are all pregnancy-safe ingredients. However, always consult with your healthcare provider before adding new products to your routine during pregnancy.
No, this serum is NOT fungal acne safe. It contains Glycine Soja (Soybean) Oil, Hydrogenated Lecithin, and Palmitoyl Tripeptide-8, which can feed the Malassezia yeast that causes fungal acne. If you have fungal acne or pityrosporum folliculitis, consider alternatives like COSRX Snail 96 Mucin Essence which is fungal acne safe.
Yes! This serum is specifically formulated for compatibility with other active ingredients. It layers well with Vitamin C, Retinol, AHAs, BHAs, Niacinamide, Ceramides, and Snail Mucin. Apply the peptide serum first after cleansing, allow it to absorb, then follow with your other actives. The low-irritation formula makes it safe for daily use even with exfoliating acids or retinoids.
This serum is suitable for ALL skin types including sensitive, oily, dry, combination, and mature skin. Clinical testing confirms it's safe for sensitive and acne-prone conditions. The lightweight, watery texture works especially well for oily and combination skin types, while dry skin types may want to layer with a heavier moisturizer afterward.
You may notice improved hydration and glow within the first week. Visible improvements in texture are typically observed after 2-3 weeks. Clinical testing shows measurable results after 4 weeks of consistent use (+162.5% hydration, +76.4% texture improvement). Anti-aging benefits like reduced fine lines and improved firmness become more apparent after 6-8 weeks of daily use.
Apply immediately after cleansing as the FIRST step in your skincare routine. This serum acts as a "booster" that preps your skin and enhances the absorption of subsequent products. After applying 2-3 pumps and letting it absorb, follow with your toner, essence, other serums, moisturizer, and SPF (in the morning).
No, this serum has been clinically tested and confirmed to be non-comedogenic. It has a comedogenic rating of 1/5. The Dermacosmetic Skin Science Laboratory testing confirms it won't clog pores or cause irritation, even with continuous use. It's suitable for acne-prone skin (though not for fungal acne specifically).
The Period After Opening (PAO) is 12 months. Once opened, use within one year for best results. The 150ml bottle typically lasts 2-3 months with twice-daily use. Store in a cool, dry place away from direct sunlight. While refrigeration isn't required, it can help extend the shelf life and provide a refreshing application experience.
Verdict: The COSRX 6 Peptide Skin Booster Serum offers exceptional value in the peptide skincare category. With 150ml of product featuring six clinically-backed peptides, niacinamide, and hyaluronic acid at an affordable price point, it delivers professional-grade anti-aging care accessible to all budgets. The lightweight, fragrance-free formula works for virtually all skin types and layers beautifully with other actives. While not suitable for fungal acne sufferers and requiring 4+ weeks for visible results, it's an excellent choice for those beginning their anti-aging journey or anyone seeking a multi-tasking, pregnancy-safe peptide serum.
Browse related
Product Overview
What are Quick Product Notes?
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Pro Tip Alert!
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Paraben-Free
Paraben-Free
Understanding Parabens
Parabens are a large group of preservatives which are used to prevent bacteria growing in cosmetic formulations. There has been some healthy controversy surrounding them due to a few studies finding paraben presence in breast tumours and breast tissue. However, the majority of the scientific community have deemed these findings non-conclusive due to the limitations of these studies. There's still a lot of support for avoiding parabens following the better safe than sorry route. If you do we completely support you! If you are concerned about the health safety of parabens, then feel free to avoid them by looking out for the Paraben-Free icon. If not, don't worry about it - they do have had one of the longest safety records as preservatives!
Which Ingredients are classified as Paraben?
A product will be paraben-free if it does not contain any of the following parabens:
- Sodium Isobutylparaben
- Sodium Ethylparaben
- Sodium Butylparaben
- Propylparaben
- Isopropylparaben
- Isobutylparaben
- Sodium Propylparaben
- Butylparaben
- Ethylparaben
- Sodium Methylparaben
- Methylparaben
Sulfate-Free
Sulfate-Free
Understanding Sulfates
Sulfates are a large group of ingredients which act as cleansing agents in Cosmetics. They help loosen up the dirt and grime from your skin and hair to allow for water to wash it away with ease. However some sulfates are so good at their job, they can wash off your skin’s own natural oils that keep it moisturised and protected which can lead to dryness and irritation. Most people will find no issues with sulfate, however if you find your skin doesn't like sulfates then free feel to avoid them by looking out for the sulfate-free icon on Skincarisma.
Which ingredients are classified as sulfates?
We've taken the Sulfates which are considered more harsh for our Sulfate-Free status. A product will be Sulfate-Free if it does not contain any of the following Sulfates:
- TEA-Dodecylbenzenesulfonate
- Ammonium Laureth Sulfate
- Sodium Lauryl Sulfate
- PEG-15 Cocamine
- Sodium Laureth Sulfate
- Sodium Cocoyl Sarcosinate
- Sodium C14-16 Olefin Sulfonate
- Dioctyl Sodium Sulfosuccinate
- Ammonium Xylenesulfonate
- Ammonium Lauryl Sulfate
- Sodium Xylenesulfonate
- Sodium Myreth Sulfate
- Sodium Lauryl Sulfoacetate
Alcohol-Free
Alcohol-Free
Understanding Simple Alcohols
Alcohol ingredients are widely used in cosmetics and come in different types. For the most part alcohols are not problematic at all. However one type of alcohols, simple alcohols can be quite drying to the skin because it evaporates very quickly. This can cause irritation which can also lead to other skin complications. These alcohols should never be used alone on your skin, but combined with other cosmetic ingredients, they are normally without issue. However, for some people with sensitive and easily irritable skin, avoiding products with these simple alcohols may be beneficial. If you find your skin doesn't like these simple alcohols, then free feel to avoid them by looking out for the Alcohol-Free icon.
Which Ingredients are classified as Alcohol?
A product will be alcohol-free if it does not contain any of the following alcohol ingredients:
- SD Alcohol
- Alcohol Denat
- Isopropyl Alcohol
- Alcohol
Silicone-Free
Silicone-Free
Understanding Silicones
If you've ever used a skincare, makeup or beauty product that's made your skin look and feel smoother tempoarily - it's likely contained Silicone. They are a popular class of ingredients found in cosmetics due to their smooth, soft, easy-to-spread and smooth properties that help creates an artificial layer/barrier on top of skin or hair (commonly found in conditioners).
For the same reasons they are popularly used, they are also commonly avoided. Anecdotally, many individuals have reported that Silicones cause/excerbate breakouts, irritation, cause a feeling of skin being unable to breathe, cause clumping of cosmetic products and find it difficult to wash off. As a result, those who find them problematic are avoiding them and increasingly, cosmetic companies are avoiding them as well.
If you have had bad experiences with Silicones in the past, or suspect they are problematic then look out for the tick on the Silicone-free label.
Disclaimer
The Silicone-free label only includes the most common Silicone ingredients that have indentified been reported by individuals that could potentially cause issues.
These include: Amodimethicone, Behenoxy Dimethicone, Bis-Aminopropyl Dimethicone, Cetearyl Methicone, Cetyl Dimethicone, Cyclomethicone, Cyclopentasiloxane, Dimethicone, Dimethicone Copolyol, Dimethiconol, Methicone, Phenyl Trimethicone, Phenyl Trimethicone, Stearoxy Dimethicone, Stearyl Dimethicone, Trimethylsilylamodimethicone.
Note, that this does not include all ingredients part of the Silicone class of ingredients.
EU Allergen-Free
EU Allergen-Free
Understanding the Identified Contact Allergens
The EU's Scientific Committee on Consumer Safety (SCCS) has identified and established 26 cosmetic ingredients that are likely contact allergens (potential to cause skin allergies) as demonstrated in clinical or epidemiological studies. The EU's SCCS have recommend cosmetic companies to disclose them on the labels if used and in cases where the concentration exceeds 0.001% in leave-on products and 0.01% in rinse-off products, then they must be labelled.
Look out for the tick on the EU-Allergen free label to know your cosmetic is free from any of the 26 identified cosmetic ingredients.
For more information regarding the EU's Scientific Committee on Consumer Safety, please visit their official website.
Disclaimer
The EU Allergen Free label is for the 26 ingredients identified by the EU SCCS and products will be only flagged if a suspected ingredient is on it's ingredient list. It is possible for cosmetics to contain one of the suspect ingredients without it appearing on the ingredient list due to it not reaching the concentration threshold to disclose it and cosmetic manufacturers choice to not disclose it.
Also note, the EU Allergen Free label is not personalized for your own allergies you may have and it does not constitute as medical advice. For your specific case, always consult your medical professiona such as dermatologist, physician, pharmacist, or health care provider - please read our medical disclaimer for more information.
Fungal Acne (Molassezia) Safe
Fungal Acne (Molassezia) Safe
Understanding Fungal Acne (Pityrosporum Folliculitis/Malassezia Folliculitis)
Pityrosporum Folliculitis/Malassezia folliculitis or simply known as Fungal Acne is a persistent acne-like condition that commonly responds poorly to traditional acne-treating methods. Unlike most cases of Acne where bacteria is the culprit, Fungi is the culprit of Fungal Acne (Hence the name!). There are certain classes & groups of ingredients that have been shown to promote and feed the growth of the Fungal Acne, Fungi such as fatty acids, oils, esters, polysorbates and fermented ingredients.
For more information regarding Fungal Acne, please visit Simple Skincare Science (f.c) - #3 of our Recommend Skincare Resources for an amazing comprehensive guide!
Please Read: How to use the Fungal Acne (Malassezia) Label
At SkinCarisma, we've done our best to identify as many ingredients as possible but note the fungal-free label may not be 100% accurate due to the complexconditions and combination of ingredients that malezzeria can thrive on.
Additionally, products that may contain ingredients that have shown to feed Malassezia may not neccessarily exacerbate the condition due to concentration of ingredient used in the product, this information is simply not available on the products.
As a result, please note this is only an experimental label that can be best used to possible identify problematic products you have used in the past. It is in no way a perfect identifier nor a predictor in whether or not it will exacerbate or cause fungal acne. It will continue to be worked on as more information and research comes to light.
If you find any ingredients you believe should be included, please email us at snails@skincarisma.com.
Disclaimer
Due to the lack of substantial research into this area it is very likely there are other ingredients and class/groups of ingredients that could feed Fungal Acne which have not been indentified.
The Fungal-Safe label does not constitute as medical advice. For your specific case, always consult your medical professiona such as dermatologist, physician, pharmacist, or health care provider - please read our medical disclaimer for more information.
What are Notable Effects & Ingredients?
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Pro Tip Alert!
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Anti-Aging from 7 ingredient(s):
Brightening from 4 ingredient(s):
Promotes Wound Healing from 9 ingredient(s):
Ache-fighting from 1 ingredient(s):
What are Ingredients Related to Skin Type?
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
Pro Tip Alert!
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Dry Skin
Oily/Acne-Prone Skin
Sensitive Skin
What is the Ingredient Safety Breakdown?
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
Pro Tip Alert!
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 1 |
Dipropylene Glycol
Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling
|
|
|
| 2 |
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
|
Brightening
Promotes Wound Healing
Hydrating
|
|
| 1 |
Pentylene Glycol
Solvent, Skin Conditioning
|
|
|
| 1 |
1,2-Hexanediol
Solvent, Skin Conditioning
|
Hydrating
|