The Ordinary "Buffet" Versus Mary & May 6 Peptide Complex Serum

See how these products line up with your preferences

Here's our complete breakdown comparing the ingredients, attributes, and more of The Ordinary "Buffet" versus Mary & May 6 Peptide Complex Serum .

Last updated on July 18, 2023. Published on December 11, 2021

Overview

What they are

These products are both vegan, cruelty-free, and reef safe serums. They have a total of 8 ingredients in common

Cool Features

They both contain peptides

Suited For

They're both likely to be good for dry skin, brightening skin and scar healing

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, 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.

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The Ordinary "Buffet"

Mary & May 6 Peptide Complex Serum

Serum Canadian Brand Canada

Serum South Korean Brand

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Price

Shop

Buy "Buffet"

Starts at $19.90

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Buy 6 Peptide Complex Serum

Starts at $11.03

Ingredient Info

Click any item below to learn more and view relevant ingredients.

The Ordinary "Buffet" 51 ingredients

Mary & May 6 Peptide Complex Serum 17 ingredients

alcohol-free

silicon-free

fragrance-free

sulfate-free

paraben-free

oil-free

fungal-acne safe

reef-safe

eu-allergen-free

vegan

cruelty-free

alcohol-free

silicon-free

fragrance-free

sulfate-free

paraben-free

oil-free

fungal-acne safe

reef-safe

eu-allergen-free

vegan

cruelty-free

At a glance

Click on any of the items below to learn more

The Ordinary "Buffet" 51 ingredients

Mary & May 6 Peptide Complex Serum 17 ingredients

Benefits

Hydrating (2)

Redness Reducing

Reduces Irritation

Skin Texture

Scar Healing

Brightening

Concerns

Drying

Acne Trigger

Rosacea (2)

Eczema

Benefits

Hydrating

Anti-Aging (2)

Scar Healing

Brightening

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Ingredients Compared

Ingredients that are highlighted in purple are present in both products.

The Ordinary "Buffet" 51 ingredients

Mary & May 6 Peptide Complex Serum 17 ingredients

Water • Glycerin • Lactococcus Ferment Lysate • Acetyl Hexapeptide-8 • Pentapeptide-18 • Palmitoyl Tripeptide-1 • Palmitoyl Tetrapeptide-7 • Palmitoyl Tripeptide-38 • Dipeptide Diaminobutyroyl Benzylamide Diacetate • Acetylarginyltryptophyl Diphenylglycine • Sodium Hyaluronate Crosspolymer • Sodium Hyaluronate • Allantoin • Glycine • Alanine • Serine • Valine • Isoleucine • Proline • Threonine • Histidine • Phenylalanine • Arginine • Aspartic Acid • Trehalose • Fructose • Glucose • Maltose • Urea • Sodium PCA • PCA • Sodium Lactate • Citric Acid • Hydroxypropyl Cyclodextrin • Sodium Chloride • Sodium Hydroxide • Butylene Glycol • Pentylene Glycol • Acacia Senegal Gum • Xanthan Gum • Carbomer • Polysorbate 20 • Ppg-26-Buteth-26 • Peg-40 Hydrogenated Castor Oil • Trisodium Ethylenediamine Disuccinate • Ethoxydiglycol • Sodium Benzoate • Caprylyl Glycol • Ethylhexylglycerin • Phenoxyethanol • Chlorphenesin

Water • Glycereth-26 • 1,2-Hexanediol • Butylene Glycol • Glycerin • Arginine • Carbomer • Ethylhexylglycerin • Polyglyceryl-10 Laurate • Adenosine • Caprylyl Glycol • Copper Tripeptide-1 • Hexapeptide-11 • Hexapeptide-9 • Palmitoyl Pentapeptide-4 • Palmitoyl Tripeptide-1 • Tripeptide-1

Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Water

What it does: Skin Conditioning, Solvent

Community Rating: Loved

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 Water

The Ordinary "Buffet" contains this as ingredient number 1.

Mary & May 6 Peptide Complex Serum contains this as ingredient number 1.

Glycerin

What it does: Humectant, Skin Conditioning, Skin Protecting, Solvent

Community Rating: Loved

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 Glycerin

The Ordinary "Buffet" contains this as ingredient number 2.

Mary & May 6 Peptide Complex Serum contains this as ingredient number 5.

Palmitoyl Tripeptide-1

What it does: Skin Conditioning

Community Rating: Liked

Palmitoyl Tripeptide-1 is a 3-amino acid peptide. Peptides are building blocks for protein.

Palmitoyl Tripeptide-1 is a signal peptide. This means it tells our skin to create collagen. Collagen is a protein that makes connective tissue. Boosting collagen production leads to a healthier skin barrier. Having a healthy skin barrier means having firm and hydrated skin.

Palmitoyl Tripeptide-1 can help reduce wrinkles and make the skin look more youthful.

Read more about other common types of peptides here:

Learn more about Palmitoyl Tripeptide-1

The Ordinary "Buffet" contains this as ingredient number 6.

Mary & May 6 Peptide Complex Serum contains this as ingredient number 16.

Arginine

What it does: Masking, Skin Conditioning

Community Rating: Mixed

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 Arginine

The Ordinary "Buffet" contains this as ingredient number 23.

Mary & May 6 Peptide Complex Serum contains this as ingredient number 6.

Butylene Glycol

What it does: Humectant, Masking, Skin Conditioning, Solvent

Community Rating: Mixed

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.

The Ordinary "Buffet" contains this as ingredient number 37.

Mary & May 6 Peptide Complex Serum contains this as ingredient number 4.

Carbomer

What it does: Emulsion Stabilising, Gel Forming

Community Rating: Disliked

Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.

Carbomer is commonly found in many types of cosmetics products. It is found to be safe in concentrations up to 15%. However, a high amount of carbomer can cause pilling or balling up of products. Most products contain 1% of less of carbomer.

The Ordinary "Buffet" contains this as ingredient number 41.

Mary & May 6 Peptide Complex Serum contains this as ingredient number 7.

Caprylyl Glycol

What it does: Emollient, Humectant, Skin Conditioning

Community Rating: Liked

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 Glycol

The Ordinary "Buffet" contains this as ingredient number 48.

Mary & May 6 Peptide Complex Serum contains this as ingredient number 11.

Ethylhexylglycerin

What it does: Skin Conditioning

Community Rating: Mixed

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.

The Ordinary "Buffet" contains this as ingredient number 49.

Mary & May 6 Peptide Complex Serum contains this as ingredient number 8.

Here's what our community thinks of the ingredients in these two products.