Here's our complete breakdown comparing the ingredients, attributes, and more of Mary & May 6 Peptide Complex Serum versus COSRX The 6 Peptide Skin Booster Serum .
Last updated on August 09, 2023. Published on August 09, 2023
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 9 ingredients in common
Cool Features
They both contain peptides
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin and scar healing
Free From
They both do not contain any common allergens, parabens, silicones or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Ingredient Info
Mary & May 6 Peptide Complex Serum 17 ingredients
COSRX The 6 Peptide Skin Booster Serum 44 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
Contains Alcohol
Ingredients in this product that are types of alcohol:
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
Mary & May 6 Peptide Complex Serum 17 ingredients
COSRX The 6 Peptide Skin Booster Serum 44 ingredients
Benefits
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Notable Ingredients
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This product contains 6 ingredients that may have this attribute:
Benefits
This product contains 4 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Concerns
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Mary & May 6 Peptide Complex Serum 17 ingredients
COSRX The 6 Peptide Skin Booster Serum 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 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
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterMary & May 6 Peptide Complex Serum contains this as ingredient number 1.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 1.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.
Mary & May 6 Peptide Complex Serum contains this as ingredient number 3.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 5.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
Mary & May 6 Peptide Complex Serum contains this as ingredient number 4.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 34.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinMary & May 6 Peptide Complex Serum contains this as ingredient number 5.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 3.
Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.
As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.
Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.
Learn more about ArginineMary & May 6 Peptide Complex Serum contains this as ingredient number 6.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 20.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Mary & May 6 Peptide Complex Serum contains this as ingredient number 8.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 36.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.
Studies have found adenosine may also help with wound healing.
In skincare products, Adenosine is usually derived from yeast.
Learn more about AdenosineMary & May 6 Peptide Complex Serum contains this as ingredient number 10.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 37.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolMary & May 6 Peptide Complex Serum contains this as ingredient number 11.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 41.
Copper Tripeptide-1 is a peptide naturally found in body fluids. Peptides are building blocks for protein.
Studies show this ingredient tells our body to create more collagen and elastin. Collagen is a protein that makes connective tissue. Elastin is the protein responsible for giving our skin elasticity. Our bodies start to slow down collagen and elastin production with age.
Boosting collagen and elastin production can help create a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin. It's a win-win situation!
Studies show this ingredient can help with scar healing. This is because it breaks down damaged collagen, the main component of scar tissue. It may also help with reducing sunspots, acne scars, and uneven skin tone.
This ingredient is also an antioxidant. Antioxidants help the body fight off free-radicals. Free radicals are molecules that damage our cells, such as pollution and tobacco smoke.
More benefits: Copper Tripeptide-1 helps maintain tissues in blood vessels and promote natural hyaluronic acid in skin.
Read more about other common types of peptides here:
Learn more about Copper Tripeptide-1Mary & May 6 Peptide Complex Serum contains this as ingredient number 12.
COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 8.
Here's what our community thinks of the ingredients in these two products.
Mary & May 6 Peptide Complex Serum 17 ingredients
COSRX The 6 Peptide Skin Booster Serum 44 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Mary & May 6 Peptide Complex Serum 17 ingredients
COSRX The 6 Peptide Skin Booster Serum 44 ingredients
Reviews
Here's what our community thinks
Alternatives
Our Dupe Finder has found 50 potential alternatives that have similar ingredients to Mary & May 6 Peptide Complex Serum.
See 50 alternativesOur Dupe Finder has found 50 potential alternatives that have similar ingredients to COSRX The 6 Peptide Skin Booster Serum.
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