Koh Gen Do Spa Brightening Moisture Mask

Koh Gen Do Spa Brightening Moisture Mask

Efficacy37/100IrritancyHigh

Works for

Moisturizing
Glycerin, Simmondsia chinensis seed oil + 15 more
Works
What the product description says
“Spa Brightening Moisture Mask”
Source: Beautylish

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin, sodium acetylated hyaluronate.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: cera alba, simmondsia chinensis seed oil.

GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4–4.9%
Simmondsia chinensis seed oilKey active· Emollient, OcclusiveEffect: HighSoftens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.~1.9–2.3%
SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~0.6–0.9%
Glyceryl stearate seKey activeEffect: MediumUsed to stabilize the product formulations and works as an emollient~0.45–0.7%
Cera albaKey active· Emollient, OcclusiveEffect: HighForms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen~0.35–0.6%
Sodium acetylated hyaluronateKey active· HumectantEffect: HighA type of hyaluronic acid that works as an excellent moisturizer by attracting water into the upper layer of the skin. Is typically feels less sticky on the skin compared to the usual hyaluronic acid~0.2–0.35%
HoneyKey active· HumectantEffect: MediumHelps attract water to the skin and might have some anti-bacterial properties. Can be an allergen~0.2–0.4%
Glycine soja seed extractKey active· EmollientEffect: MediumAn emollient that helps soften the skin. Might be somewhat helpful in evening the skin tone.~0.2–0.35%
Soluble collagenKey active· HumectantEffect: HighA typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin~0.15–0.25%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~6–7.3%
Stearic acid· EmollientEffect: LowHelps oil and water mix together and works as an emollient~2.3–2.8%
Behenyl alcohol· Emollient, OcclusiveEffect: LowNon-drying alcohol that helps water and oil mix together. Also serves as an emollient~1.6–1.9%
Phytosteryl/isostearyl/cetyl/stearyl/behenyl dimer dilinoleate· EmollientEffect: LowHelps soften the upper layer of the skin and create a nice product consistency~0.75–1.1%
Batyl alcohol· EmollientEffect: LowNon-drying alcohol. Used to stabilize other ingredients and is an emollient~0.35–0.65%
Polyglyceryl-10 stearateEffect: LowHelps water and oil mix together and softens the upper layer of the skin~0.35–0.6%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.2–0.35%
Dipotassium glycyrrhizateUnder-dosedA salt derived from licorice. Works as an emollient to soften the upper layer of the skin and can help calm down inflammation. Might be helpful for skin lightening~0.2–0.35%
Anti-blemish
Rosmarinus officinalis leaf extract ~0.15–0.3%
Under-dosed
What the product description says
“Prevents blackheads, extracts impurities, and reduces the appearance of pores.”
Source: Beautylish

Effective ingredients missing or their concentration is too low.

BentoniteEffect: LowHelps stabilize the product formulation~3–3.7%
Moroccan lava clayEffect: LowHelps absorb oil (for the time of application) and creates a thicker product consistency~0.4–0.65%
Rosmarinus officinalis leaf extractUnder-dosedCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating~0.15–0.3%

Can it cause trouble?

Irritancy
5 strong irritants: Alcohol, Melissa officinalis leaf extract + 3 more — patch-test recommended
High risk
We flagged 13 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~0.2–0.4%est.
Melissa officinalis leaf extractA plant extract that is added for its fragrance. Can be irritatingHigh~0.2–0.4%est.
Rosmarinus officinalis leaf extractCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritatingHigh~0.15–0.3%est.
Thymus serpyllum extract—High~0.15–0.3%est.
Salvia officinalis leaf extractSage leaf extract. It can be irritatingHigh~0.2–0.35%est.
Cynara scolymus leaf extractA plant extract that might have some anti-oxidant properties. It might be irritatingHigh~0.05–0.15%est.
Lithospermum erythrorhizon root extractA plant extract that might help neutralize free radicals in skin. Can be used for its fragranceHigh~0.1–0.15%est.
Simmondsia chinensis seed oilSoftens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.Medium~1.9–2.3%est.
Polyvinyl alcoholHelps improve the product textureMedium~1.4–1.7%est.
Polyglyceryl-10 stearateHelps water and oil mix together and softens the upper layer of the skinMedium~0.35–0.6%est.
Cera albaForms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergenMedium~0.35–0.6%est.
Potassium hydroxideUsed to adjust the pH level of productsMedium~0.25–0.45%est.
Glycine soja seed extractAn emollient that helps soften the skin. Might be somewhat helpful in evening the skin tone.Medium~0.2–0.35%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Glyceryl stearate seUsed to stabilize the product formulations and works as an emollient2/5~0.45–0.7%est.

User reviews

Would you recommend?
No community reviews yet.

Be the first — your take helps the next person decide.

Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Butylene glycol~6–7.3%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Glycerin~4–4.9%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Bentonite~3–3.7%
Formula
Irritation risk
Low
Works for
Anti-blemish

Helps stabilize the product formulation

More about Bentonite
Stearic acid~2.3–2.8%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Helps oil and water mix together and works as an emollient

More about Stearic acid
Simmondsia chinensis seed oil~1.9–2.3%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.

More about Simmondsia chinensis seed oil
Behenyl alcohol~1.6–1.9%
Formula
Irritation risk
Low
Works for
Moisturizing

Non-drying alcohol that helps water and oil mix together. Also serves as an emollient

More about Behenyl alcohol
Polyvinyl alcohol~1.4–1.7%
Irritant · medium
Irritation risk
Medium

Helps improve the product texture

More about Polyvinyl alcohol
Methyl gluceth-10~1–1.2%
Formula
Irritation risk
Low
Works for
Cleansing
More about Methyl gluceth-10
Phytosteryl/isostearyl/cetyl/stearyl/behenyl dimer dilinoleate~0.75–1.1%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin and create a nice product consistency

More about Phytosteryl/isostearyl/cetyl/stearyl/behenyl dimer dilinoleate
Squalane~0.6–0.9%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Talc~0.75–1.1%
Formula
Irritation risk
Low

Absorbs oil and moisture helping to create a dryer product finish

More about Talc
Glyceryl stearate se~0.45–0.7%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

Used to stabilize the product formulations and works as an emollient

More about Glyceryl stearate se
Diatomaceous earth~0.7–1%
Formula
Irritation risk
Low

Used to create a thicker product consistency

More about Diatomaceous earth
Polyglyceryl-10 stearate~0.35–0.6%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps water and oil mix together and softens the upper layer of the skin

More about Polyglyceryl-10 stearate
Titanium dioxide~0.5–0.7%
Formula
Irritation risk
Low
Works for
Sun protection

Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin

More about Titanium dioxide
Batyl alcohol~0.35–0.65%
Formula
Irritation risk
Low
Works for
MoisturizingAntibacterial

Non-drying alcohol. Used to stabilize other ingredients and is an emollient

More about Batyl alcohol
Lauramide/myristamide dea~0.3–0.5%
Formula
Irritation risk
Low
Works for
Cleansing
More about Lauramide/myristamide dea
Moroccan lava clay~0.4–0.65%
Formula
Irritation risk
Low
Works for
Anti-blemish

Helps absorb oil (for the time of application) and creates a thicker product consistency

More about Moroccan lava clay
Cera alba~0.35–0.6%
Key activeIrritant · medium
Irritation risk
Medium
Works for
CleansingMoisturizing

Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen

More about Cera alba
Potassium hydroxide~0.25–0.45%
Irritant · medium
Irritation risk
Medium

Used to adjust the pH level of products

More about Potassium hydroxide
Phenoxyethanol~0.2–0.4%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Sucrose stearate~0.25–0.45%
Formula
Irritation risk
Low
Works for
Cleansing

Helps water and oil mix together

More about Sucrose stearate
Iron oxides~0.2–0.35%
Formula
Irritation risk
Low
Works for
Sun protection

An umbrella term for the following three colorants: CI 77491, CI 77492, CI 77499. They might be able to offer some protection against visible light, but the degree of the protection is not clear

More about Iron oxides
Aluminum hydroxide~0.25–0.4%
Formula
Irritation risk
Low

Is used to add opaque (non-transparent) appearance to formulations. Can be used to coat other ingredients for even dispersion. This is a different ingredient compared to the ones used in antipersperants (aluminium chloride and aluminium chlorohydrate)

More about Aluminum hydroxide
Tocopherol~0.2–0.35%
Formula
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Dipotassium glycyrrhizate~0.2–0.35%
Under-dosed
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryEvens skin tone

A salt derived from licorice. Works as an emollient to soften the upper layer of the skin and can help calm down inflammation. Might be helpful for skin lightening

More about Dipotassium glycyrrhizate
Honey~0.2–0.4%
Key active
Irritation risk
Low
Works for
MoisturizingAntibacterial

Helps attract water to the skin and might have some anti-bacterial properties. Can be an allergen

More about Honey
Betula platyphylla japonica juice~0.2–0.4%
Formula
Water~0.2–0.4%
Formula
Irritation risk
Low

Plain old water

More about Water
Alcohol~0.2–0.4%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
Daucus carota sativa root extract~0.2–0.4%
Formula
Irritation risk
Low
Works for
Anti-oxidation

Carrot extract. Might have anti-oxidant properties and be used to add orange color

More about Daucus carota sativa root extract
Melissa officinalis leaf extract~0.2–0.4%
Irritant · high
Irritation risk
High

A plant extract that is added for its fragrance. Can be irritating

More about Melissa officinalis leaf extract
Sodium acetylated hyaluronate~0.2–0.35%
Key active
Irritation risk
Low
Works for
Moisturizing

A type of hyaluronic acid that works as an excellent moisturizer by attracting water into the upper layer of the skin. Is typically feels less sticky on the skin compared to the usual hyaluronic acid

More about Sodium acetylated hyaluronate
Rosmarinus officinalis leaf extract~0.15–0.3%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-blemishAntibacterialAnti-oxidation

Can be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating

More about Rosmarinus officinalis leaf extract
Thymus serpyllum extract~0.15–0.3%
Irritant · high
Glycine soja seed extract~0.2–0.35%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidationReduces rednessEvens skin toneAnti-aging

An emollient that helps soften the skin. Might be somewhat helpful in evening the skin tone.

More about Glycine soja seed extract
Soluble collagen~0.15–0.25%
Key active
Irritation risk
Low
Works for
Moisturizing

A typically plant-derived compound that is supposed mimic human collagen. Cannot penetrate the skin barrier so is not particularly useful in skincare products beyond attracting water to the upper layer of the skin

More about Soluble collagen
Salvia officinalis leaf extract~0.2–0.35%
Irritant · high
Irritation risk
High

Sage leaf extract. It can be irritating

More about Salvia officinalis leaf extract
Cynara scolymus leaf extract~0.05–0.15%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that might have some anti-oxidant properties. It might be irritating

More about Cynara scolymus leaf extract
Lithospermum erythrorhizon root extract~0.1–0.15%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin. Can be used for its fragrance

More about Lithospermum erythrorhizon root extract
Ingredient list view

Water, Butylene glycol, Glycerin, Bentonite, Stearic acid, Simmondsia chinensis seed oil, Behenyl alcohol, Polyvinyl alcohol, Methyl gluceth-10, Phytosteryl/isostearyl/cetyl/stearyl/behenyl dimer dilinoleate, Squalane, Talc, Glyceryl stearate se, Diatomaceous earth, Polyglyceryl-10 stearate, Titanium dioxide, Batyl alcohol, Lauramide/myristamide dea, Moroccan lava clay, Cera alba, Potassium hydroxide, Phenoxyethanol, Sucrose stearate, Iron oxides, Aluminum hydroxide, Tocopherol, Dipotassium glycyrrhizate, Honey, Betula platyphylla japonica juice, Water, Alcohol, Daucus carota sativa root extract, Melissa officinalis leaf extract, Sodium acetylated hyaluronate, Rosmarinus officinalis leaf extract, Thymus serpyllum extract, Glycine soja seed extract, Soluble collagen, Salvia officinalis leaf extract, Cynara scolymus leaf extract, Lithospermum erythrorhizon root extract

Compare prices

Retailers ranked by price — lowest first.

Dermstore2.82 oz
$76.50 Out of stock
Check
Beautylish. L
$120.00
Buy

Affiliate links

Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
Koh Gen DoSpa Brightening Moisture MaskYOUR PRODUCTmegumi no honpoMilky Lotion Mask 4 pcs - 3 TypesASTALIFTMoisturizing Face Mask 6 pcsEviDenS de BeautéThe 7 Minutes Brightening Anti-aging Mask
Match—38%38%38%
Price$120.00—$87.60−$32.40—
Shared key ingredients—5 of 104 of 104 of 10
Key difference—ArginineAcetyl HydroxyprolineAlanine
Irritancy High Medium Medium Medium
Drying alcohol Contains drying alcohol —— Contains drying alcohol
View product Shop Shop Shop

More alternatives: DHC CoQ10 MaskFESTINO Inner Moisture Facial Treatment Mask

Cheaper alternatives? See how this stacks up against similar formulas.
We compare ingredient profiles across our catalog — pick the closest match for your budget.
Open dupe finder

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 13 studies and safety reviews.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
    Vitamin E in dermatologyncbi.nlm.nih.gov
  6. 6
    Vitamin E and Skin Healthlpi.oregonstate.edu
Koh Gen Do Spa Brightening Moisture Mask
Koh Gen DoSpa Brightening Moisture Mask

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.