Overview
What it is
Face cleanser with 17 ingredients
Cool Features
It is fungal acne (malassezia) safe and reef safe
Suited For
It has ingredients that are good for dry skin, sensitive skin and scar healing
Free From
It doesn't contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates
Fun facts
Kosé is from Japan. This product is used in 7 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.
What's inside
Ingredients List
Dipotassium Glycyrrhizate
Humectant
Water
Skin ConditioningButylene Glycol
Humectant
Potassium Cocoate
Emulsifying
Glycerin
Humectant
Sodium Methyltaurate
Skin ConditioningCapryl Hydroxyethyl Imidazoline
Sorbitol
Humectant
Glycosyl Trehalose
Emulsion StabilisingSerine
Masking
Theanine
EmollientAcetyl Hydroxyproline
EmollientDisodium EDTA
Glycerylamidoethyl Methacrylate/Stearyl Methacrylate Copolymer
HumectantGlyceryl Glucoside
Humectant
Hydroxypropyl Methylcellulose
Emulsion StabilisingPhenoxyethanol
Preservative
Dipotassium Glycyrrhizate, Water, Butylene Glycol, Potassium Cocoate, Glycerin, Sodium Methyltaurate, Capryl Hydroxyethyl Imidazoline, Sorbitol, Glycosyl Trehalose, Serine, Theanine, Acetyl Hydroxyproline, Disodium EDTA, Glycerylamidoethyl Methacrylate/Stearyl Methacrylate Copolymer, Glyceryl Glucoside, Hydroxypropyl Methylcellulose, Phenoxyethanol
Benefits
Concerns
Ingredients Explained
Dipotassium Glycyrrhizate comes from licorice root.
Extracts of licorice have demonstrated to have antibacterial, anti‐inflammatory, antiviral, antioxidant properties.
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.
Licorice root is native to Southern Europe and Asia. It has been used in traditional Chinese medicine to help with respiratory issues.
Learn more about Dipotassium GlycyrrhizateWater. 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. Remember to stay hydrated!
Learn more about WaterButylene 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 GlycolThis ingredient is the potassium salt of coconut acid. Coconut acid is created by mixing fatty acids from coconut oil.
It is an emulsifier, surfactant, and cleanser. According to a manufacturer, it contains glycerin.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinWe don't have a description for Sodium Methyltaurate yet.
We don't have a description for Capryl Hydroxyethyl Imidazoline yet.
Sorbitol is a sugar alcohol. It is a hydrating and moisturizing agent created from the reduction process of glucose.
Most sorbitol is usually made from potato starch. It is also found in fruits such as apples and pears.
As a humectant, Sorbitol helps draw water to the skin. This helps keep the skin hydrated. Sorbitol also helps create a thicker texture in products. You might find sorbitol in your toothpaste and other gels.
It is a non-irritating ingredient that is great for those with dry skin.
Sorbitol is a prebiotic. It helps promote the growth of healthy bacteria on your skin. The bacteria on your skin form a microbiome. This microbiome helps protect your skin from infection and harmful bacteria.
Learn more about SorbitolWe don't have a description for Glycosyl Trehalose yet.
Serine is a non-essential amino acid (your body makes it on its own!). It is a major player in your skin's natural moisturizing factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.
Serine is one of your NMF's most abundant components that works as a skin-identical humectant. Its hydroxyl group grabs onto water molecules to boost hydration without any heaviness or occlusion.
Research on a hydrogel with serine confirmed this serine got delivered to your stratum corneum and demonstrated enhanced skin moisturization.
Interestingly serine also helps your skin produce filaggrin, a protein that keeps your skin barrier strong and used to create collagen.
Learn more about SerineTheanine is an amino acid found in plants and fungal species. It helps hydrate the skin as an emollient and humectant.
Both emollients and humectants help hydrate the skin. Emollients prevent moisture from escaping by creating a thin film on top of the skin. Humectants draw water from the air to your skin.
Fun fact: Theanine gives green tea its special umami flavor.
Learn more about TheanineWe don't have a description for Acetyl Hydroxyproline yet.
Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
Learn more about Disodium EDTAWe don't have a description for Glycerylamidoethyl Methacrylate/Stearyl Methacrylate Copolymer yet.
Glyceryl Glucoside is made from glycerol and glucose.
It is a humectant. Humectants help hydrate your skin by drawing moisture to it from the air.
Some foods that contain glyceryl glucoside include sake, miso, and wines.
Learn more about Glyceryl GlucosideThis ingredient is a semi-synthetic polymer created from cellulose. In case you need a refresher, cellulose is the main component of plant cell walls.
Hydroxypropyl Methylcellulose has many uses:
- emulsifier
- create a gel-like texture
- boost foam
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
Kosé is a Japanese brand
Often compared with
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 us· Updated August 27, 2025 • Added by makuarike
