Kate Somerville EradiKate Mask Foam-Activated Acne Treatment

Kate Somerville EradiKate Mask Foam-Activated Acne Treatment

Efficacy75/100IrritancyHigh

Works for

Moisturizing
Glycerin, Honey extract + 3 more
Works
What the product description says
“-Natural Oat Extract.”
Source: Sephora

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, honey extract.

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. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

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~0.2–0.4%
Honey extractKey active· HumectantEffect: MediumHelps attract water to the upper layer of the skin~0.1–0.2%
Behenyl alcohol· Emollient, OcclusiveEffect: LowNon-drying alcohol that helps water and oil mix together. Also serves as an emollient~0.25–0.5%
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~0.2–0.4%
Avena sativa kernel extractUnder-dosedAn effective moisturizing and skin barrier repair ingredient. Helps calm down inflammation and has some anti-oxidant properties~0.2–0.35%

Can it cause trouble?

Irritancy
3 strong irritants: Parfum, Linalool + 1 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
Sodium c14-16 olefin sulfonateHelps oil and water mix together and used as a cleansing agent. Can be irritating and is better avoided for sensitive skinHigh~11–13%est.
Coco-glucosideUsed as a cleansing agent (surfactant) in cleansers. Helps water and oil mix together in lotions. Can be irritatingHigh~5.6–6.9%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.2–0.35%est.
LinaloolA fragrance. Can be irritatingHigh~0.1–0.25%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.05–0.1%est.
Sodium cocoamphoacetateHelps oil and water mix together and works as a cleansing agent. Creates foamMedium~3.7–4.6%est.
Acrylates copolymerUsed to stabilize product formulation, help create an even product layer over skin (for example, in sunscreen) and create a thicker product consistencyMedium~2.3–2.8%est.
Cocamidopropyl hydroxysultaineUsed as a cleansing agent. Helps water and oil mix togetherMedium~0.6–0.9%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.3%est.
Disodium edtaStabilizes the product formulationMedium~0.1–0.2%est.
EthylhexylglycerinA preservativeMedium~0.1–0.2%est.
Honey extractHelps attract water to the upper layer of the skinMedium~0.1–0.2%est.
Potassium sorbateA preservativeMedium~0.05–0.1%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Sodium c14-16 olefin sulfonate~11–13%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps oil and water mix together and used as a cleansing agent. Can be irritating and is better avoided for sensitive skin

More about Sodium c14-16 olefin sulfonate
Coco-glucoside~5.6–6.9%
Irritant · high
Irritation risk
High
Works for
Cleansing

Used as a cleansing agent (surfactant) in cleansers. Helps water and oil mix together in lotions. Can be irritating

More about Coco-glucoside
Sodium cocoamphoacetate~3.7–4.6%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together and works as a cleansing agent. Creates foam

More about Sodium cocoamphoacetate
Acrylates copolymer~2.3–2.8%
Irritant · medium
Irritation risk
Medium

Used to stabilize product formulation, help create an even product layer over skin (for example, in sunscreen) and create a thicker product consistency

More about Acrylates copolymer
Coconut alcohol~1.8–2.2%
Formula
Irritation risk
Low
Works for
Cleansing
More about Coconut alcohol
Glycereth-18 ethylhexanoate~1.5–1.8%
Formula
Propanediol~1.3–1.6%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Glycereth-18~1–1.2%
Formula
Irritation risk
Low
More about Glycereth-18
Ethyl perfluorobutyl ether~0.7–1.05%
Formula
Ethyl perfluoroisobutyl ether~0.5–0.75%
Formula
Stearyl alcohol~0.5–0.75%
Formula
Irritation risk
Low
Works for
Cleansing

An emollient that helps soften the skin

More about Stearyl alcohol
Titanium dioxide~0.5–0.75%
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
Ci 77891~0.25–0.5%
Formula
Irritation risk
Low
More about Ci 77891
Phenoxyethanol~0.2–0.4%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Cocamidopropyl hydroxysultaine~0.6–0.9%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used as a cleansing agent. Helps water and oil mix together

More about Cocamidopropyl hydroxysultaine
Behenyl alcohol~0.25–0.5%
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
Butylene glycol~0.2–0.4%
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
Parfum~0.2–0.35%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Sodium chloride~0.2–0.4%
Formula
Irritation risk
Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride
Citric acid~0.15–0.3%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Glycerin~0.2–0.4%
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
Sodium hydroxide~0.15–0.25%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Linalool~0.1–0.25%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Xanthan gum~0.15–0.3%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Disodium edta~0.1–0.2%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Ethylhexylglycerin~0.1–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Iron oxides~0.1–0.2%
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
Ci 77491~0.15–0.25%
Formula
Irritation risk
Low

A red colorant made of iron oxide. Typically is not irritating

More about Ci 77491
Sodium benzoate~0.15–0.25%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Avena sativa kernel extract~0.2–0.35%
Under-dosed
Irritation risk
Low
Works for
Anti-inflammatoryReduces irritationMoisturizingReduces rednessAnti-oxidation

An effective moisturizing and skin barrier repair ingredient. Helps calm down inflammation and has some anti-oxidant properties

More about Avena sativa kernel extract
Boswellia serrata extract~0.1–0.2%
Formula
Honey extract~0.1–0.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Honey extract
Oryza sativa bran extract~0.1–0.15%
Formula
Irritation risk
Low

Used to thicken the product consistency

More about Oryza sativa bran extract
Limonene~0.05–0.1%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Disodium carboxyethyl siliconate~0.05–0.1%
Formula
Potassium sorbate~0.05–0.1%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Oligopeptide-10~0.01–0.05%
Formula
Irritation risk
Low

A synthetic antimicrobial peptide used in acne products. In lab tests it stops the acne bacterium C. acnes from growing at very low concentrations, but no controlled study in people shows that it clears acne. It is not a collagen-boosting or moisturizing peptide.

More about Oligopeptide-10
Ingredient list view

Water, Sodium c14-16 olefin sulfonate, Coco-glucoside, Sodium cocoamphoacetate, Acrylates copolymer, Coconut alcohol, Glycereth-18 ethylhexanoate, Propanediol, Glycereth-18, Ethyl perfluorobutyl ether, Ethyl perfluoroisobutyl ether, Stearyl alcohol, Titanium dioxide, Ci 77891, Phenoxyethanol, Cocamidopropyl hydroxysultaine, Behenyl alcohol, Butylene glycol, Parfum, Sodium chloride, Citric acid, Glycerin, Sodium hydroxide, Linalool, Xanthan gum, Disodium edta, Ethylhexylglycerin, Iron oxides, Ci 77491, Sodium benzoate, Avena sativa kernel extract, Boswellia serrata extract, Honey extract, Oryza sativa bran extract, Limonene, Disodium carboxyethyl siliconate, Potassium sorbate, Oligopeptide-10

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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
Kate SomervilleEradiKate Mask Foam-Activated Acne TreatmentYOUR PRODUCTLa Roche-PosayEffaclar MaskPeter Thomas RothTherapeutic Sulfur MaskGoldfaden MDRadiance Whip
Match—37%37%36%
Price—$17.28$52.00$37.77
Shared key ingredients—2 of 22 of 22 of 2
Key difference—PanthenolSulfurPanthenol
Irritancy High Medium Medium Low
Drying alcohol————
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Kate Somerville EradiKate Mask Foam-Activated Acne Treatment
Kate SomervilleEradiKate Mask Foam-Activated Acne Treatment

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As an Amazon Associate, WIMJ earns from qualifying purchases.