Hada Labo Koi-Gokujyun Perfect Gel (Renewal) Ingredients Explained

5.0   from 3 ratings
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28
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Published on September 12, 2023

There is an older formulation of this product:

Overview

What it is

General moisturizer with 30 ingredients that contains ceramides and hyaluronic acid

Cool Features

It is fungal acne (malassezia) safe

Suited For

It has ingredients that are good for anti aging, dry skin, brightening skin and sensitive skin

Free From

It doesn't contain any harsh alcohols, common allergens, oils or sulfates

Fun facts

Hada Labo is from Japan. This product is used in 107 routines created by our community.

We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.

You should know

Here's our breakdown of the notable ingredients, benefits, and concerns we determined from the ingredients in this product. Click any item to learn more.

Notable Ingredients

Ceramides
Hyaluronic Acid (3)

Benefits

Hydrating (3)
Redness Reducing
Reduces Irritation
Anti-Aging
Brightening

Concerns

Eczema

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

Ingredients Overview

Here's our quick-to-read summary of the ingredients in this product. Keep scrolling if you'd like to learn more about what each ingredient does!
Ingredient
Features
1
Skin Conditioning, Solvent
2
Humectant, Masking, Skin Conditioning, Solvent
1 / 0
3
Humectant, Skin Conditioning, Skin Protecting, Solvent
0 / 0
Helps hydrate Dry Skin IconHelps brighten skin Icon
4
Humectant, Skin Conditioning
5
Skin Conditioning, Solvent
6
Skin Conditioning
7
Masking, Skin Conditioning
8
Emollient, Skin Conditioning
1 / 0
Helps hydrate Dry Skin Icon
9
10
Emollient, Emulsion Stabilising
Fatty Alcohol Icon
11
Humectant
Hyaluronic Acid Icon
12
Humectant, Skin Conditioning
0 / 0
Hyaluronic Acid Icon
13
Humectant, Skin Conditioning
Hyaluronic Acid Icon
14
15
Emollient, Humectant, Skin Conditioning
Helps with Anti-Aging Icon
16
Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconHelps with Anti-Aging Icon
17
Absorbent, Emulsion Stabilising
18
Emollient, Skin Conditioning, Skin Protecting
1 / 0
Silicon Icon
19
Skin Conditioning
20
Masking, Perfuming
Fragrance Icon
21
Emollient, Skin Conditioning, Solvent
Silicon Icon
22
Preservative
Preservative Icon
23
Masking
24
Emulsion Stabilising
25
Masking
26
27
Buffering, Masking
28
Humectant, Skin Conditioning
29
30
Preservative
0 / 0
Preservative IconParaben IconNon-Reef-Safe IconMay worsen Eczema Icon

Ingredients Explained

This product contains 30 ingredients. Click on any ingredient to learn more about it
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
2
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.

3
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
4
What it does: Humectant, Skin Conditioning
Community Rating: Liked

We don't have a description for Hydroxyethyl Urea.

5
What it does: Skin Conditioning, Solvent
Community Rating: Mixed

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.

This property also makes Pentylene Glycol a great texture enhancer. It can help thicken or emulsify a product. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.

Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.

Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.

Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.

Learn more about Pentylene Glycol
6
What it does: Skin Conditioning

We don't have a description for Ppg-10 Methyl Glucose Ether.

7
What it does: Masking, Skin Conditioning
Community Rating: Mixed

Triethylhexanoin is created from glycerin and 2-ethylhexanoic acid. It is a solvent and emollient.

As a solvent, Triethylhexanoin helps dissolve ingredients to stable bases or help evenly distribute ingredients throughout the product.

It is also an emollient and helps condition the skin.

Learn more about Triethylhexanoin
8
What it does: Emollient, Skin Conditioning
Community Rating: Loved

Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.

Because squalane boosts hydration in the skin, it also comes with plenty of benefits: it is an antioxidant and can help fight free radicals and skin damage. Squalane is also found to have a detoxifying effect when applied.

Squalane comes from squalene, which occurs naturally within the sebum of our skin. It is one of the oils our skin produces to keep itself hydrated. Squalane is the hydrogenated version of squalene and has a longer shelf life.

Research shows that squalane is non-irritating (even at 100% concentration).

In general, it's a fantastic ingredient. It does a great job at hydrating the skin, and it's suitable for those with sensitive skin.

The source of squalane may impact malassezia / fungal acne. This is because olive oil derived squalane can contain impurities such as fatty acids and plant waxes. Sugarcane derived squalane is recommended for anyone with malassezia concerns.

Is squalane vegan?
This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.

Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.

Read more about squalene with an "e".

Learn more about Squalane
9
What it does:
Community Rating: Mixed

Ammonium Acryloyldimethyltaurate/Vp Copolymer (let's call it AAVC for short) is a synthetically created polymer. It's used as a film-forming agent and used to thicken the consistency of products.

AAVC is able to increase the consistency and viscosity of products due to its large molecule size. It also prevents ingredients from separating.

10
What it does: Emollient, Emulsion Stabilising
Community Rating: Disliked

A type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as traditional alcohols.

Emollients help keep your skin soft and hydrated by creating a film that traps moisture in.

Behenyl Alcohol is usually derived from the fats in vegetable oils.

In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores.

Learn more about Behenyl Alcohol
11
What it does: Humectant
Community Rating: Liked

Sodium Acetylated Hyaluronate is a type of Hyaluronic Acid.

Hyaluronic Acids help moisturize, soothe, and protect the skin.

12
What it does: Humectant, Skin Conditioning
Community Rating: Loved

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.

These are some other common types of Hyaluronic Acid:

Learn more about Sodium Hyaluronate
13
What it does: Humectant, Skin Conditioning
Community Rating: Liked

Hydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.

Low molecular weight HA has been shown to hydrate and increase elasticity of the skin. Increasing elasticity is also associated with reduction of wrinkle depth.

One study found topical low molecular weight hyaluronic acid may be considered for the treatment of rosacea in the adult population. However, we always recommend speaking with a professional about your skin concerns.

Hyaluronic acids are a humectant. This means they draw moisture from the air. Hyaluronic acids help moisturize, soothe, and protect the skin.

Read more about other common forms of hyaluronic acid:

Learn more about Hydrolyzed Hyaluronic Acid
14
What it does:
Community Rating: Liked

This form of hyaluronic acid is produced through fermentation.

According to a manufacturer, it has a positive charge by ionic binding to help moisturize and give hair a smooth feel. This is why you'll find this ingredient in
shampoos and body washes.

15
What it does: Emollient, Humectant, Skin Conditioning
Community Rating: Loved

Collagen is the most abundant type of structural protein found in your body. In your skin, it is responsible for keeping it firm and youthful.

Hydrolyzed Collagen means it has been broken down into smaller particles. This helps the body process hydrolyzed collagen better.

Your body uses collagen for a variety of tasks. These tasks include repairing and maintaning tissues, helping cells communicate, and helping your body’s immune system respond to attacks.

Collagen is comprised mostly of glycine, proline, and hydroxypoline. These are amino acids.

Collagen can be used in the morning or night. It will not increase sun sensitivity, but you should always wear sunscreen during the day.

Learn more about Hydrolyzed Collagen
16
What it does: Skin Conditioning
Community Rating: Loved

Glucosyl Ceramide is a ceramide. It can be good for be good for dry skin and be good for sensitive skin. It can help to reduce redness and reduce the effects of aging.

17
What it does: Absorbent, Emulsion Stabilising

We don't have a description for Aphanothece Sacrum Polysaccharide.

18
What it does: Emollient, Skin Conditioning, Skin Protecting
Community Rating: Very Disliked

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.

19
What it does: Skin Conditioning

We don't have a description for Ppg-17-Buteth-17.

20
What it does: Masking, Perfuming
Community Rating: Very Disliked

Triethyl Citrate is a fragrance.

21
What it does: Emollient, Skin Conditioning, Solvent
Community Rating: Disliked

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.

D5 is an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.

Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.

Learn more about Cyclopentasiloxane
22
What it does: Preservative
Community Rating: Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

23
What it does: Masking

We don't have a description for Disodium Succinate.

24
What it does: Emulsion Stabilising
Community Rating: Disliked

Dimethicone Crosspolymer is a silicone created by modifying dimethicone with hydrocarbon side chains. Due to its large size, it does not penetrate skin. It is considered non-occlusive.

Dimethicone Crosspolymer is used to stabilize and thicken products. It also helps give products a silky feel.

25
What it does: Masking

Agar is the vegan substitute for animal-gelatin. It helps thicken and improve the texture of cosmetics.

Agar is an antioxidant. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells.

Agar is created from cell-walls of red algae.

Learn more about Agar
26
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
27
What it does: Buffering, Masking
Community Rating: Loved

Succinic acid is an odorless white powder. It is naturally found in our bodies but can also be derived from living organisms.

Succinic acid is water-soluble. The pH level of this ingredient is between 4.2 and 5.6.

While succinic acid posesses antimicrobial, antioxidant, and anti-inflammatory properties, these properties have not been studied in skincare products.

Fun fact: Succinic acid was known as the 'spirit of amber' in the past. This is because it used to be derived from distilling amber.

Learn more about Succinic Acid
28
What it does: Humectant, Skin Conditioning
Community Rating: Liked

We don't have a description for Alpha-Glucan.

We don't have a description for Ammonium Acrylates Copolymer.

30
What it does: Preservative
Community Rating: Very Disliked

Methylparaben is a preservative and is a paraben. It is used to prevent the growth of fungus, mold, and other harmful bacteria. Parabens are chemicals used as preservatives in both cosmetics and food.

Methylparaben can be synthetically created. It can also be found naturally in some fruits, such as blueberries.

Oftentimes, Methylparaben is combined with other parabens to help increase the shelf life.

The safety of Methylparaben is currently being studied. While ongoing studies are looking into the safety of parabens, the results have been very mixed. Some studies have not found Methylparaben to be harmful.

Learn more about Methylparaben
Embed Ingredients

Here's what our community thinks of the 30 ingredients in this product ✨

40% are loved or liked
13% have mixed ratings
27% are disliked or very disliked
20% have no rating yet

When to use

We've created a guide with info on when you should use Hada Labo Koi-Gokujyun Perfect Gel (Renewal). We've also included some recommended products to use it with, as well as some routine inspiration!

Read our guide on when to use Koi-Gokujyun Perfect Gel (Renewal) ->
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The data we've presented on this page has been verified by a member of the SkinSort Team.

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Top Reviews

wthtay's Avatar'
Jan 7, 2024

It's one of my favorite moisturizers. I like its gel consistency and how it's easy absorbed by the skin. It doesn't feel greasy or heavy, it's not sticky and I feel my skin really plumpy afterwards.

It's one of my favorite moisturizers. I like its gel consistency and how it's easy absorbed by the skin. It doesn't feel greasy or heavy, it's not sticky and I feel my skin really plumpy afterwards.

Hydrating
Light
Absorbs Well
No Scent
Works Well