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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of COSRX The 6 Peptide Skin Booster Serum versus HYGGEE Natural Repair Serum .

Last updated on August 09, 2023. Published on November 09, 2023

Overview

What they are

These products are both cruelty-free and reef safe serums. They have a total of 17 ingredients in common

Cool Features

They both contain niacinamide and peptides

Suited For

They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots

Free From

They both do not contain any common allergens, parabens or sulfates

What's Inside

They both contain harsh alcohols and fragrances

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.

Serum South Korean Brand South Korea
Serum South Korean Brand South Korea

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 The 6 Peptide Skin Booster Serum

Shop

Buy Natural Repair Serum

Starts at $35.00

Ingredient Info

Click any item below to learn more and view relevant 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

Notable Ingredients

Vitamin E
Niacinamide
Hyaluronic Acid
Peptides (6)

Benefits

Hydrating (4)
Good For Oily Skin
Redness Reducing (3)
Reduces Irritation (2)
Reduces Large Pores
Anti-Aging (3)
Dark Spots
Scar Healing (3)
Acne Fighting
Brightening (3)

Concerns

Irritating

Notable Ingredients

Vitamin C
Niacinamide
Peptides

Benefits

Hydrating (2)
Good For Oily Skin
Redness Reducing (6)
Reduces Irritation (4)
Skin Texture
Reduces Large Pores (2)
Anti-Aging (3)
Dark Spots (3)
Scar Healing (2)
Acne Fighting (2)
Brightening (2)
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Ingredients Compared

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

Water โ€ข Dipropylene Glycol โ€ข Glycerin โ€ข Pentylene Glycol โ€ข 1,2-Hexanediol โ€ข Niacinamide โ€ข Acetyl Hexapeptide-8 โ€ข Copper Tripeptide-1 โ€ข Sh-Polypeptide-121 โ€ข Dipeptide Diaminobutyroyl Benzylamide Diacetate โ€ข Oligopeptide-68 โ€ข Palmitoyl Tripeptide-8 โ€ข Allantoin โ€ข Sodium Hyaluronate โ€ข Acetyl Glucosamine โ€ข Serine โ€ข Alanine โ€ข Glycine โ€ข Threonine โ€ข Arginine โ€ข Proline โ€ข Betaine โ€ข Sodium PCA โ€ข Sodium Lactate โ€ข PCA โ€ข Glutamic Acid โ€ข Lysine Hcl โ€ข Tocopherol โ€ข Dextran โ€ข Glycine Soja Oil โ€ข Hydrogenated Lecithin โ€ข Ammonium Acryloyldimethyltaurate/Vp Copolymer โ€ข Polyacrylate Crosspolymer-6 โ€ข Butylene Glycol โ€ข Xanthan Gum โ€ข Ethylhexylglycerin โ€ข Adenosine โ€ข Polyquaternium-51 โ€ข Disodium EDTA โ€ข Citric Acid โ€ข Caprylyl Glycol โ€ข T-Butyl Alcohol โ€ข Potassium Sorbate โ€ข Sodium Oleate

Panax Ginseng Root Extract โ€ข Glycerin โ€ข Propanediol โ€ข 1,2-Hexanediol โ€ข Butylene Glycol โ€ข Niacinamide โ€ข Water โ€ข Simethicone โ€ข Panthenol โ€ข Gelidium Cartilagineum Extract โ€ข Laminaria Japonica Extract โ€ข Hizikia Fusiforme Extract โ€ข Ascophyllum Nodosum Extract โ€ข Ascorbic Acid Polypeptide โ€ข Lactobacillus Ferment โ€ข Glycyrrhiza Glabra Root Extract โ€ข Dextrin โ€ข Centella Asiatica Extract โ€ข Scutellaria Baicalensis Root Extract โ€ข Glycine โ€ข Polygonum Cuspidatum Root Extract โ€ข Serine โ€ข Glutamic Acid โ€ข Sesamum Indicum Seed Extract โ€ข Sophora Flavescens Root Extract โ€ข Camellia Sinensis Leaf Extract โ€ข Cimicifuga Racemosa Root Extract โ€ข Morus Alba Bark Extract โ€ข Paeonia Lactiflora Root Extract โ€ข Phellinus Linteus Extract โ€ข Angelica Gigas Root Extract โ€ข Polygonum Multiflorum Root Extract โ€ข Aspartic Acid โ€ข Leucine โ€ข Rosmarinus Officinalis Leaf Extract โ€ข Chamomilla Recutita Flower Extract โ€ข Paeonia Suffruticosa Root Extract โ€ข Alanine โ€ข Lysine โ€ข Arginine โ€ข Tyrosine โ€ข Phenylalanine โ€ข Valine โ€ข Pancratium Maritimum Extract โ€ข Threonine โ€ข Proline โ€ข Isoleucine โ€ข Histidine โ€ข Methionine โ€ข Cysteine โ€ข Cellulose Gum โ€ข Ammonium Acryloyldimethyltaurate Crosspolymer โ€ข Sodium Polyacryloyldimethyl Taurate โ€ข Hydrogenated Polydecene โ€ข Ethylhexylglycerin โ€ข Adenosine โ€ข Trideceth-10 โ€ข Theobroma Cacao Extract โ€ข Disodium EDTA โ€ข T-Butyl Alcohol โ€ข Carbomer โ€ข Polyglutamic Acid โ€ข Pvp โ€ข Betaine

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.

1
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

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 1.

HYGGEE Natural Repair Serum contains this as ingredient number 7.

2
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

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 3.

HYGGEE Natural Repair Serum contains this as ingredient number 2.

3
What it does: Skin Conditioning, Solvent
Community Rating: Mixed

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.

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 5.

HYGGEE Natural Repair Serum contains this as ingredient number 4.

4
What it does: Smoothing
Community Rating: Loved

Niacinamide has emerged as an all-star ingredient due to its many benefits.

It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.

Other benefits include smoothing wrinkles and minimizing redness.

The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.

When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.

Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.

Learn more about Niacinamide

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 6.

HYGGEE Natural Repair Serum contains this as ingredient number 6.

5
What it does: Masking, Skin Conditioning
Community Rating: Loved

Serine is an amino acid naturally found in our body. Our bodies use amino acids to create protein.

Amino-acids help give keep our skin hydrated. They play an important role in the skin barrier, which keeps the skin plump and firm.

Serine is a non-essential amino acid, meaning we don't need to obtain it from eating foods.

Learn more about Serine

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 16.

HYGGEE Natural Repair Serum contains this as ingredient number 22.

6
What it does: Masking, Skin Conditioning
Community Rating: Loved

Alanine is an amino acid and is already found in the human body.

Alanine has antioxidant properties and can help with anti-aging.

Alanine is used by fibrous proteins such as collagen, elastin, and keratin. These three help make a strong skin barrier. Having a healthy skin barrier leads to more plump and youthful skin.

Learn more about Alanine

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 17.

HYGGEE Natural Repair Serum contains this as ingredient number 38.

7
What it does: Buffering, Skin Conditioning
Community Rating: Liked

Glycine is an amino acid that helps build proteins. It is already present in our skin as our bodies produce them naturally.

Glycine helps keep skin hydrated and reduce signs of aging. Amino acids help transport moisture throughout our skin; glycine already plays a role in helping keep our skin moisturized.

As collagen is made up of glycine and other amino acids, it is believed Glycine may help our skin produce more collagen. Collagen helps keep skin plump and firm.

Learn more about Glycine

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 18.

HYGGEE Natural Repair Serum contains this as ingredient number 20.

8
What it does:
Community Rating: Loved

Threonine is an amino-acid. It helps hydrate the skin and has antioxidant benefits.

Threonine is vital for creating collagen and elastin. Collagen and elastin support youthful and firm skin. Our bodies decrease collagen production naturally with age.

Humans are not able to create threonine and must get it through eating foods such as fish, lentils, poultry, sesame seeds, and more.

Learn more about Threonine

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 19.

HYGGEE Natural Repair Serum contains this as ingredient number 45.

9
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

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 20.

HYGGEE Natural Repair Serum contains this as ingredient number 40.

10
What it does: Skin Conditioning
Community Rating: Loved

Proline is an amino-acid. It helps moisturize the skin and plays an important role in creating proteins.

Proline is one of the building blocks for producing collagen. As we age, our bodies produce less collagen. Collagen helps the skin look plump and firm.

In medicine, proline is used as an osmoprotectant. This means it helps prevent oxidative degradation in other drugs.

Our bodies are able to produce proline naturally, but certain conditions may inhibit this production. In that case, proline can be obtained from eating egg whites, soy protein, dairy products, asparagus, mushrooms, and seaweed.

Learn more about Proline

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 21.

HYGGEE Natural Repair Serum contains this as ingredient number 46.

11
What it does: Humectant, Skin Conditioning
Community Rating: Loved

Betaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.

Betaine is best for improving hydration and soothing irritated skin. Studies show betaine may help with uneven skin tones.

Betaine is naturally created in the skin and body. The form found within cosmetic products can be either plant-dervied or synthetic.

Learn more about Betaine

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 22.

HYGGEE Natural Repair Serum contains this as ingredient number 64.

12
What it does: Humectant
Community Rating: Loved

Glutamic Acid is an amino acid that is found in all living organisms. Our bodies use this to help nerve cells in the brain communicate with other cells.

In cosmetics, glutamic acid is a famous humectant. It draws water from the air to your skin, keeping your skin hydrated (like hyaluronic acid).

An in-vitro study from 2024 found glutamic acid to play a role in inhibiting inflammation and thus a potential skin-soothing ingredient.

Other studies show it to be have potential wound healing, skin barrier repair, and hair growth properties.

Glutamic acid has poor solubility in water and other solvents.

Learn more about Glutamic Acid

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 26.

HYGGEE Natural Repair Serum contains this as ingredient number 23.

13
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.

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 34.

HYGGEE Natural Repair Serum contains this as ingredient number 5.

14
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.

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 36.

HYGGEE Natural Repair Serum contains this as ingredient number 55.

15
What it does: Skin Conditioning
Community Rating: Loved

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 Adenosine

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 37.

HYGGEE Natural Repair Serum contains this as ingredient number 56.

16
What it does:
Community Rating: Disliked

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.

Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.

Learn more about Disodium EDTA

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 39.

HYGGEE Natural Repair Serum contains this as ingredient number 59.

17
What it does: Perfuming, Solvent
Community Rating: Very Disliked

T-Butyl Alcohol it is most commonly used as a solvent.

At room temperature, T-Butyl Alcohol melts and has a similar smell to camphor.

This ingredient is derived from isobutane. It is the simplest form of a tertiary alcohol. Due to its chemical structure, it is more resistant to oxidation.

Learn more about T-Butyl Alcohol

COSRX The 6 Peptide Skin Booster Serum contains this as ingredient number 42.

HYGGEE Natural Repair Serum contains this as ingredient number 60.

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

61% are loved or liked
11% have mixed ratings
20% are disliked or very disliked
7% have no rating yet
58% are loved or liked
11% have mixed ratings
8% are disliked or very disliked
23% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

COSRX The 6 Peptide Skin Booster Serum 44 ingredients

1.0 /5
from 1 rating

HYGGEE Natural Repair Serum 64 ingredients

4.0 /5
from 1 rating
Great Value (1) Hydrating (1) Light (1) No Scent (1) Sticky (1) Works Well (1)
tsmeu's avatar

tsmeu

5 months ago ยท Dry Skin
Review

This is a really nice winter skin saviour and works phenomenally to keep my skin hydrated. The formula might be a bit divisive, as this leaves...

This is a really nice winter skin saviour and works phenomenally to keep my skin hydrated. The formula might be a bit divisive, as this leaves quite a sticky residue on the skin, but I feel like the residue is partly what makes this work so well for maintaining skin hydration throughout the day despite the dry winter air. This might not be pleasant for nighttime use due to the stickiness though.

This is quite a well-rounded serum that in addition to providing hydration also contains gems like niacinamide, adenosine, lactobacillus ferment, antioxidants, soothing ingredients and certain interesting root extracts. I see these as a nice bonus but to me this is first and foremost a hydrating product.

Presuming that the name of the product refers to barrier repair, I wouldn't necessarily say that this is the best product out there for that purpose, as I didn't notice this doing anything special for my barrier function. However it does certainly complement and play nice with more dedicated barrier repairing products, as long as the long list of various plant extracts doesn't irritate the compromised skin. I never experienced any irritation with this, even at times when I had some barrier damage, but my skin isn't very sensitive in the first place.

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