Overview
What it is
Sheet mask with 43 ingredients that contains hyaluronic acid
Cool Features
It is reef safe
Suited For
It has ingredients that are good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing and dark spots
Free From
It doesn't contain any harsh alcohols, common allergens, parabens, silicones or sulfates
Fun facts
Kocostar is from South Korea.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
What's inside
Ingredients List
Water
Skin ConditioningGlycerin
HumectantButylene Glycol
HumectantPEG-60 Hydrogenated Castor Oil
Emulsifying1,2-Hexanediol
Skin ConditioningArginine
MaskingCarbomer
Emulsion StabilisingAloe Barbadensis Leaf Extract
EmollientCellulose Gum
Emulsion StabilisingParfum
MaskingCaprylyl Glycol
EmollientAllantoin
Skin ConditioningCaprylhydroxamic Acid
Disodium EDTA
Betaine
HumectantIllicium Verum Fruit Extract
PerfumingPhragmites Communis Extract
Skin ConditioningSalicornia Herbacea Extract
Skin ConditioningSodium Hyaluronate
HumectantTremella Fuciformis Extract
HumectantSophora Flavescens Root Extract
AntioxidantChrysanthemum Morifolium Flower Extract
Skin ConditioningHoney Extract
HumectantCamellia Sinensis Leaf Extract
AntimicrobialCentella Asiatica Extract
CleansingMorus Alba Bark Extract
Skin ConditioningZanthoxylum Schinifolium Leaf Extract
Skin ConditioningPerilla Frutescens Leaf Extract
MaskingLuffa Cylindrica Fruit Extract
Skin ConditioningGlycyrrhiza Glabra Root Extract
BleachingArtemisia Princeps Extract
Skin ConditioningHouttuynia Cordata Extract
Skin ConditioningPisum Sativum Extract
Skin ConditioningCoix Lacryma-Jobi Ma-Yuen Seed Extract
Skin ConditioningGinkgo Biloba Nut Extract
Skin ConditioningPanax Ginseng Berry Extract
Skin ConditioningCitrus Paradisi Fruit Extract
Skin ConditioningPaeonia Lactiflora Root Extract
Skin ConditioningAngelica Gigas Root Extract
Skin ConditioningAcorus Calamus Root Extract
PerfumingCnidium Officinale Root Extract
Skin ConditioningRosa Centifolia Flower Water
Skin ConditioningPhenoxyethanol
PreservativeWater, Glycerin, Butylene Glycol, PEG-60 Hydrogenated Castor Oil, 1,2-Hexanediol, Arginine, Carbomer, Aloe Barbadensis Leaf Extract, Cellulose Gum, Parfum, Caprylyl Glycol, Allantoin, Caprylhydroxamic Acid, Disodium EDTA, Betaine, Illicium Verum Fruit Extract, Phragmites Communis Extract, Salicornia Herbacea Extract, Sodium Hyaluronate, Tremella Fuciformis Extract, Sophora Flavescens Root Extract, Chrysanthemum Morifolium Flower Extract, Honey Extract, Camellia Sinensis Leaf Extract, Centella Asiatica Extract, Morus Alba Bark Extract, Zanthoxylum Schinifolium Leaf Extract, Perilla Frutescens Leaf Extract, Luffa Cylindrica Fruit Extract, Glycyrrhiza Glabra Root Extract, Artemisia Princeps Extract, Houttuynia Cordata Extract, Pisum Sativum Extract, Coix Lacryma-Jobi Ma-Yuen Seed Extract, Ginkgo Biloba Nut Extract, Panax Ginseng Berry Extract, Citrus Paradisi Fruit Extract, Paeonia Lactiflora Root Extract, Angelica Gigas Root Extract, Acorus Calamus Root Extract, Cnidium Officinale Root Extract, Rosa Centifolia Flower Water, Phenoxyethanol
Key Ingredients
Benefits
Concerns
Ingredients Explained
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin 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 GlycerinButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene GlycolPeg-60 Hydrogenated Castor Oil comes from hydrogenated castor oil. It is a solubilizer and emulsifier.
As a solubilizer, it helps dissolve ingredients into a water-based version. It is also an emulsifer. Emulsifier help prevent oils and water from separating. Both these properties help create evenly-spread and uniform products.
Basically, Peg-60 Hydrogenated Castor Oil helps hold ingredients together.
Learn more about PEG-60 Hydrogenated Castor Oil1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.ย
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservativesย
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 ArginineCarbomer is a polymer of acrylic acid. Its main role is to create a gel consistency.
A high amount of carbomer can cause pilling or balling up of products. Don't worry, most products contain 1% or less of carbomer.
Aloe Barbadensis Leaf Extract is an extract of the leaves of the aloe, Aloe barbadensis, Liliaceae.
Aloe is one of the most well-known natural soothing ingredients, and for good reason.ย Itโs full of water and has a cooling, calming effect on the skin, especially when itโs sunburned, itchy, or irritated.ย Aloe also helps your skin stay hydrated and smooth by mimicking what healthy skin naturally produces.ย On top of that, it contains vitamins and nutrients that support skin recovery.ย
It doesnโt protect you from the sun, but it can help your skin bounce back after too much time in it.
Letโs get into the details:
Aloe contains antioxidant Vitamins A, C, and E, which help fight off free radicals (unstable molecules from things like pollution that can damage your skin).
Itโs also rich in polysaccharides, which are natural sugars that help hydrate the skin by acting like the skinโs own moisturizing agents. These, along with other sugars like monosaccharides, help form a protective barrier that locks in moisture.
Aloe works as both a humectant and an emollient. That means it draws water into the skin (humectant) and helps trap it there (emollient), making it an effective natural moisturizer.
Youโll also find a mix of other skin-supporting ingredients in aloe, including folic acid, choline, calcium, amino acids, fatty acids, and even Vitamin B12.
Out of the 420+ species of aloe, Aloe barbadensis is the most widely used in skincare products thanks to its gentle yet effective properties.
There are over 420 species of aloe but Aloe Barbadensis is the most commonly used for topical products.
Learn more about Aloe Barbadensis Leaf ExtractCellulose Gum is a water-soluble polymer that comes from cellulose. It is used to change the texture of a product and to help stabilize emulsions.
As an emulsifier, cellulose gum specifically thicken the texture of water-based products.
This ingredient is considered hypoallergenic and non-toxic. Cellulose Gum can be found in cosmetics, food, and other household goods such as paper products.
Learn more about Cellulose GumParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of โFRAGRANCEโ or โPARFUMโ according to EU and US regulations.
The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.
Learn more about ParfumCaprylyl 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 GlycolAllantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.
Some studies have shown this ingredient can promote wound healing with higher concentrations.
Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.
Learn more about AllantoinCaprylhydroxamic Acid is a chelating agent.
Chelating agents help prevent metal ions from binding to other ingredients. This helps prevent unwanted reactions and effects from using the product.
Caprylhydroxamic Acid is often used with natural antimicrobial products as an alternative to preservatives.
Learn more about Caprylhydroxamic AcidDisodium 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 EDTABetaine 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.
This ingredient is best for improving hydration and soothing irritated skin. Studies also show it helps even out skin tone.
Fun fact: Betaine is naturally created in the skin and body. The kind found within cosmetic products can be either plant-derived or synthetic.
Learn more about BetaineStar anise extract is used to add a scent to a product. It has a similar smell to black licorice.
We don't have a description for Phragmites Communis Extract yet.
We don't have a description for Salicornia Herbacea Extract yet.
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 HyaluronateTremella Fuciformis Extract comes from the tremella fuciformis mushroom, also known as snow mushroom or white jelly mushroom.
The snow mushroom has moisturizing and antioxidant properties.
Snow mushroom is rich in polysaccharides, giving it moisturizing benefits. As a humectant, snow mushroom helps draw moisture from the air to the skin. Polysaccharides are able to mimic our skin's natural carbohydrates to help the skin retain water.
Snow mushroom has been shown to help with anti-aging due to its antioxidants. It increases the presence of superoxide dismutase in our brain and liver. Superoxide is a by-product of oxygen metabolism. It left unregulated, superoxide causes cell damage. Thus, superoxide dismutase acts as an antioxidant to protect our living cells.
Another study from 2016 showed snow mushroom extract blocks the skin from creating melanin when exposed to UVB. Thus, it may help protect against the signs of aging from sun exposure. However, more studies are needed to confirm this. Another study from 2021 found snow mushroom to protect against UVA damage as well.
This white mushroom is native to Asian countries such as China, Korea, Japan, and Thailand. It is a common ingredient in traditional Chinese cuisine and medicine.
Learn more about Tremella Fuciformis ExtractSophora Flavescens Root Extract is an antioxidant.
We don't have a description for Chrysanthemum Morifolium Flower Extract yet.
This ingredient comes from honey made by bees. It is hydrating, antibacterial, anti-aging, and skin soothing.
Honey also contains amino acids, peptides, Vitamins A, C, and E.
The humectant property of honey draws moisture from the air to your skin. This makes it great at helping to hydrate the skin.
Honey may help reduce the signs of aging due to its antioxidant properties. Fun fact: darker honey has more antioxidants than light honey. The antibacterial property of honey may make it effective at helping to treat acne by killing acne-causing bacteria.
Many people wonder if honey extract is vegan. It is technically a byproduct from bees. This is because honey is created from the digestive enzymes in a bee's stomach.
Remember to be kind to bees :) They are important for many ecosystems and are endangered.
Learn more about Honey ExtractCamellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.
This ingredient has many skin benefits:
This ingredient contains polyphenols, a strong antioxidant. Antioxidants help fight off molecules that damage skin cells.
On top of that, the antioxidants in green tea neutralize free-radicals from the sun. This gives the skin some extra UV protection, but should not replace sunscreen.
Many components of tea have anti-inflammatory properties.
Polyphenols and L-theanine help soothe the skin and reduce irritation. The caffeine in Camellia Sinensis Leaf Extract helps calm inflamed blood vessels.
Other compounds found in tea include: Vitamin Bs, linoleic acid, magnesium, calcium, iron, and zinc.
Research has shown both drinking Camellia Sinensis Leaf Tea and applying it to the skin can help boost skin elasticity and hydration. Studies also show using tea extract may reduce sebum, or oil, production.
Learn more about Camellia Sinensis Leaf ExtractCentella Asiatica Extract (Centella) is derived from an herb native to Southeast Asia. It is famous for its anti-inflammatory and soothing properties.
Centella is rich in antioxidants and amino acids, such as Madecassic Acid and Asiaticoside.
Studies show the compounds in centella help with:
The combination of all these properties makes centella effective at soothing, hydrating, and protecting the skin.
Other great components of centella include Vitamin A, vitamin C, several B vitamins, and Asiatic Acid.
Fun fact: Centella has been used as a medicine and in food for many centuries. As a medicine, it is used to treat burns, scratches, and wounds.
Learn more about Centella Asiatica ExtractWe don't have a description for Morus Alba Bark Extract yet.
We don't have a description for Zanthoxylum Schinifolium Leaf Extract yet.
We don't have a description for Perilla Frutescens Leaf Extract yet.
We don't have a description for Luffa Cylindrica Fruit Extract yet.
Glycyrrhiza Glabra Root Extract is an extract of the roots of Licorice. It has been found to have several benefits such as skin hydrating, conditioning, and soothing.
One component, glabridin, has extra potent antioxidant and soothing properties. It has also been found to block pigmentation from UVB rays in guinea pigs.
Licorice Root also contains a flavonoid. Flavonoids are a natural substance from in plants. Flavonoids also have antioxidant properties.
Another component, glycyrrhizin, has been found to have anti-inflammatory and antimicrobial benefits. This may make licorice root extract effective at treating acne. However, more research is needed to support this.
Liquiritin is one of the flavone compounds found in licorice. It has been found to help lighten skin by preventing tyrosinase from reacting with tyrosine. When the two react, protein is converted to melanin. Melanin is the substance in your body that gives your features pigmentation.
Learn more about Glycyrrhiza Glabra Root ExtractArtemisia Princeps Extract is the name of wugwort native to east Asia. It has antioxidant and anti-inflammatory properties.
Fun fact: This flower is part of the sunflower family.
Houttuynia Cordata Extract is more commonly known as Heart Leaf, Fish Mint, or Chameleon plant.
The components found in Heart Leaf give it antioxidant, hydrating, antimicrobial, and anti-inflammatory properties.
Heart Leaf is rich in flavonoids such as quercetin, apigenin, and more. It also contains polysaccharides, the most common type of carbs in food.
Flavonoids have been shown to be effective antioxidants. They help neutralize free-radical molecules. Free-radical molecules are unstable molecules that may damage our skin cells and DNA. The flavonoids in Heart Leaf also help soothe the skin.
Polysaccharides are naturally found in our skin. They play a role in hydrating and repairing the top layer of skin. The polysaccharides in Heart Leaf help moisturize our skin.
Studies show decanoyl acetaldehyde, a component of Heart Leaf oil, is effective at killing bacteria.
The name 'Fish Mint' comes from the herb's natural fishy smell. Is is native to southeast Asia and used throughout the continent for traditional cooking and medicine.
Learn more about Houttuynia Cordata ExtractWe don't have a description for Pisum Sativum Extract yet.
You might know this plant as Job's Tears or Chinese pearl barley. It is a grain native to Southeast Asia.
This ingredient has skin conditioning properties. Emerging studies show the grain to exhibit antioxidant and anti-inflammation properties as well. (With one study finding this ingredient to be effective at blocking melanin when skin is exposed to UV).
Job's tears is rich in nutrients, such as thiamine, riboflavin, niacin and ascorbic acid.
You can also find great antioxidants such as ferulic acid, caffeic acid.
To top if off, ceramides are also present in this grain.
Learn more about Coix Lacryma-Jobi Ma-Yuen Seed ExtractGinkgo Biloba Nut Extract comes from the fruit (nuts) of the Ginkgo Biloba tree. This tree is native to China.
These nuts contain potassium, Vitamin C, calcium, phosphorous, and other minerals.
This berry comes from the ginseng plant. It has antioxidant and skin soothing properties.
The antioxidant properties of this ingredient come from their phenolic compounds. Another compound found in this ingredient is ginsenoside; ginsenoside is known to help soothe inflammation.
We don't have a description for Citrus Paradisi Fruit Extract yet.
We don't have a description for Paeonia Lactiflora Root Extract yet.
We don't have a description for Angelica Gigas Root Extract yet.
Acorus Calamus Root Extract is a fragrance.
We don't have a description for Cnidium Officinale Root Extract yet.
We don't have a description for Rosa Centifolia Flower Water yet.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent 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.
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Where it's from
Kocostar is a Korean brand
We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about usยท Updated August 13, 2025 • Added by channingbester