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Kate Somerville Peptide K8™ Power Cream
Kate Somerville

Kate Somerville Peptide K8™ Power Cream

Efficacy66/100IrritancyHigh
See all ingredients

Works for

Moisturizing
Urea, Ceramide ng + 25 more
Works well
What the product description says
“Radiant ageing is 100% attainable with our multi-dimensional powerhouse moisturiser, Peptide K8® Power Cream.”
Source: Katesomerville

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: copper pca, glycerin.

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: caprylic/capric triglyceride, dimethicone.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: ceramide ng, palmitoyl hexapeptide-12, urea

UreaHero· HumectantEffect: HighNaturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations~0.45–0.7%
Ceramide ngHero· EmollientEffect: HighA type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin~0.3–0.55%
Palmitoyl hexapeptide-12HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.25–0.5%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~4.8–5.9%
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~2.5–3%
Isopropyl myristateKey active· EmollientEffect: HighAn emollient that helps soften the skin. Could be comedogenic~1.7–2.1%
DimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish~1.6–1.9%
CyclopentasiloxaneKey active· EmollientEffect: MediumA silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin~1.2–1.5%
C12-15 alkyl benzoateKey active· EmollientEffect: MediumEnhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth~1–1.2%
Cannabis sativa seed oilKey active· EmollientEffect: HighA plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layer~0.75–1.1%
Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~0.65–1%
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.~0.55–0.85%
CholesterolKey active· EmollientEffect: HighAn emollient that is naturally found in skin~0.5–0.75%
Sodium pcaKey active· HumectantEffect: HighNaturally present in skin and helps to attract water to its upper layer~0.45–0.65%
Macadamia ternifolia seed oilKey active· EmollientEffect: MediumPlant oil from nuts that helps soften the upper layer of the skin. Contains a high concentration of oleic acid that can weaken skin's barrier function and increase water-loss while enhancing penetration of other ingredients~0.45–0.7%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.25–0.5%
Copper pcaKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin~0.25–0.5%
TrehaloseKey active· HumectantEffect: HighA sugar that attracts water to the upper layer of the skin~0.25–0.5%
Stearic acid· EmollientEffect: LowHelps oil and water mix together and works as an emollient~4.5–5.5%
Isocetyl stearoyl stearate· EmollientEffect: LowHelps soften the upper layer of the skin~2–2.4%
Polyquaternium-51Effect: LowAn emollient that helps create a nice silky finish on the skin~0.3–0.55%
Tribehenin· EmollientEffect: LowUsed to create a thicker product consistency and soften the upper layer of the skin~0.3–0.6%
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~0.3–0.5%
Orbignya oleifera seed oilUnder-dosedA plant oil that can help soften the upper layer of the skin. Might be helpful in calming down inflammation in skin~0.6–0.85%
Simmondsia chinensis seed oilUnder-dosedSoftens 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.~0.45–0.65%
AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.25–0.5%
Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.2–0.35%
Anti-aging
Palmitoyl hexapeptide-12, Ascorbyl palmitate + 1 more
Works well
What the product description says
“while reducing the appearance of fine lines and wrinkles”
Source: Cultbeauty

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains palmitoyl hexapeptide-12.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

Palmitoyl hexapeptide-12Key activeEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.25–0.5%
Ascorbyl palmitateEffect: Low, below effective doseBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.~0.25–0.5%
Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.2–0.35%
Evens skin tone
Lactic acid
Not delivered
What the product description says
“Formulated in the Kate Somerville Medical Esthetics Skin Clinic, this skin-restoring formula is powered by an Advanced Ceramide-Infused Peptide + Moisture Complex that works quickly and progressively over time to improve skin texture and tone, increase elasticity and firm skin for beautifully hydrated and radiant results.”
Source: Katesomerville

Effective ingredients missing or their concentration is too low

Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.2–0.35%

Can it cause trouble?

Irritancy
5 strong irritants: Citrus paradisi peel oil, Parfum + 3 more — patch-test recommended
High risk
We flagged 20 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Citrus paradisi peel oilUsed as a fragrance. Can be irritatingHigh~0.25–0.5%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.15–0.25%est.
Hexyl cinnamalA fragrance with jasmine smell. A likely irritantHigh~0.15–0.25%est.
GeraniolA fragrance. Can be irritatingHigh~0.1–0.15%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.15%est.
Ceteareth-20Helps oil and water mix together. Has some emollient propertiesMedium~3.2–3.9%est.
Cannabis sativa seed oilA plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layerMedium~0.75–1.1%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~0.65–1%est.
Macadamia ternifolia seed oilPlant oil from nuts that helps soften the upper layer of the skin. Contains a high concentration of oleic acid that can weaken skin's barrier function and increase water-loss while enhancing penetration of other ingredientsMedium~0.45–0.7%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~0.45–0.65%est.
TriethanolamineUsed to adjust pH of the product and can help improve the product's smellMedium~0.3–0.55%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.3–0.55%est.
Ascorbyl palmitateBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.Medium~0.25–0.5%est.
Peg-10 phytosterolHelps oil and water mix togetherMedium~0.3–0.55%est.
Disodium edtaStabilizes the product formulationMedium~0.25–0.45%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.25–0.45%est.
Potassium sorbateA preservativeMedium~0.2–0.4%est.
ChlorphenesinA preservativeMedium~0.15–0.3%est.
Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~0.2–0.35%est.
BhtA preservativeMedium~0.15–0.3%est.
Comedogenic
3 ingredients rated 2 or more on the 0–5 pore-clogging scale
3 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
Isopropyl myristateAn emollient that helps soften the skin. Could be comedogenic3/5~1.7–2.1%est.
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~4.8–5.9%est.
Ceteareth-20Helps oil and water mix together. Has some emollient properties2/5~3.2–3.9%est.
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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
Cetearyl alcohol~4.8–5.9%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture

More about Cetearyl alcohol
Stearic acid~4.5–5.5%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Helps oil and water mix together and works as an emollient

More about Stearic acid
Ceteareth-20~3.2–3.9%
Comedogenic 2/5Irritant · medium
Irritation risk
Medium
Comedogenicity
2/5
Works for
Cleansing

Helps oil and water mix together. Has some emollient properties

More about Ceteareth-20
Glycerin~2.5–3%
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
Isocetyl stearoyl stearate~2–2.4%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Isocetyl stearoyl stearate
Isopropyl myristate~1.7–2.1%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
Moisturizing

An emollient that helps soften the skin. Could be comedogenic

More about Isopropyl myristate
Dimethicone~1.6–1.9%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish

More about Dimethicone
Cyclopentasiloxane~1.2–1.5%
Key active
Irritation risk
Low
Works for
MattifyingMoisturizing

A silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin

More about Cyclopentasiloxane
C12-15 alkyl benzoate~1–1.2%
Key active
Irritation risk
Low
Works for
Moisturizing

Enhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth

More about C12-15 alkyl benzoate
Cannabis sativa seed oil~0.75–1.1%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layer

More about Cannabis sativa seed oil
Caprylic/capric triglyceride~0.65–1%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride
Orbignya oleifera seed oil~0.6–0.85%
Under-dosed
Irritation risk
Low
Works for
MoisturizingAnti-inflammatory

A plant oil that can help soften the upper layer of the skin. Might be helpful in calming down inflammation in skin

More about Orbignya oleifera seed oil
Squalane~0.55–0.85%
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
Cholesterol~0.5–0.75%
Key active
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that is naturally found in skin

More about Cholesterol
Urea~0.45–0.7%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingExfoliation

Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations

More about Urea
Sodium pca~0.45–0.65%
Key active
Irritation risk
Low
Works for
Moisturizing

Naturally present in skin and helps to attract water to its upper layer

More about Sodium pca
Macadamia ternifolia seed oil~0.45–0.7%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Plant oil from nuts that helps soften the upper layer of the skin. Contains a high concentration of oleic acid that can weaken skin's barrier function and increase water-loss while enhancing penetration of other ingredients

More about Macadamia ternifolia seed oil
Simmondsia chinensis seed oil~0.45–0.65%
Under-dosedIrritant · 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
Silk powder~0.3–0.6%
Formula
Irritation risk
Low
More about Silk powder
Tribehenin~0.3–0.6%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a thicker product consistency and soften the upper layer of the skin

More about Tribehenin
Triethanolamine~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used to adjust pH of the product and can help improve the product's smell

More about Triethanolamine
Xanthan gum~0.3–0.55%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Butylene glycol~0.3–0.5%
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
Tocopheryl acetate~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
Allantoin~0.25–0.5%
Under-dosed
Irritation risk
Low
Works for
Anti-inflammatoryMoisturizingReduces irritationReduces rednessAnti-blemishExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin
Trehalose~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

A sugar that attracts water to the upper layer of the skin

More about Trehalose
Citrus paradisi peel oil~0.25–0.5%
Irritant · high
Irritation risk
High

Used as a fragrance. Can be irritating

More about Citrus paradisi peel oil
Ascorbyl palmitate~0.25–0.5%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidationAnti-aging

Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.

More about Ascorbyl palmitate
Ceramide ng~0.3–0.55%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-inflammatory

A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin

More about Ceramide ng
Peg-10 phytosterol~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Peg-10 phytosterol
Copper pca~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Copper pca
Polyquaternium-51~0.3–0.55%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps create a nice silky finish on the skin

More about Polyquaternium-51
Sodium hyaluronate~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Palmitoyl hexapeptide-12~0.25–0.5%
Hero · Moisturizing
Irritation risk
Low
Works for
Anti-agingMoisturizing

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Palmitoyl hexapeptide-12
Disodium edta~0.25–0.45%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Citric acid~0.25–0.45%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Sodium benzoate~0.2–0.4%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Potassium sorbate~0.2–0.4%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Chlorphenesin~0.15–0.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about Chlorphenesin
Lactic acid~0.2–0.35%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneMoisturizingExfoliationAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid
Parfum~0.15–0.25%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Bht~0.15–0.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about Bht
Hexyl cinnamal~0.15–0.25%
Irritant · high
Irritation risk
High

A fragrance with jasmine smell. A likely irritant

More about Hexyl cinnamal
Geraniol~0.1–0.15%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Geraniol
Limonene~0.1–0.15%
Irritant · high
Irritation risk
High

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

More about Limonene
Ingredient list view

Water, Cetearyl alcohol, Stearic acid, Ceteareth-20, Glycerin, Isocetyl stearoyl stearate, Isopropyl myristate, Dimethicone, Cyclopentasiloxane, C12-15 alkyl benzoate, Cannabis sativa seed oil, Caprylic/capric triglyceride, Orbignya oleifera seed oil, Squalane, Cholesterol, Urea, Sodium pca, Macadamia ternifolia seed oil, Simmondsia chinensis seed oil, Silk powder, Tribehenin, Triethanolamine, Xanthan gum, Butylene glycol, Tocopheryl acetate, Allantoin, Trehalose, Citrus paradisi peel oil, Ascorbyl palmitate, Ceramide ng, Peg-10 phytosterol, Copper pca, Polyquaternium-51, Sodium hyaluronate, Palmitoyl hexapeptide-12, Disodium edta, Citric acid, Sodium benzoate, Potassium sorbate, Chlorphenesin, Lactic acid, Parfum, Bht, Hexyl cinnamal, Geraniol, Limonene

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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 SomervillePeptide K8™ Power CreamYOUR PRODUCTDieuxInstant Angel Skin Restoring MoisturizerDieux SkinInstant AngelPerricone MDNeuropeptide Night Cream
Match—60%60%59%
Price$171.50$45.00−$126.50—$99.00−$72.50
Shared key ingredients—9 of 189 of 1810 of 18
Key difference—Linoleic AcidLinoleic AcidDipeptide-2
Irritancy High Medium Medium High
Drying alcohol————
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Product summary

"Kate Somerville - Peptide K8™ Power Cream" has a good moisturizing formula. As we expect from a proper moisturizer, the formula includes a combo of effective humectants and emollients. These are the two different types of ingredients that are essential for improving the skin hydration and supporting a healthy skin barrier. Humectants in this product (urea, copper pca, glycerin, sodium hyaluronate and sodium pca) help to increase the water content in the upper layer of the skin. (These ingredients do so by "capturing" water molecules from the outside air or from within the deeper layers of the skin). Ceramide 2, cannabis sativa seed oil, cholesterol, isopropyl myristate and dimethicone in this product help decrease the water evoporation from the skin, so that it stays hydrated for longer. These ingredients also soften the skin and take away the feeling of tightness and dryness.

Ingredient callouts

  • As a plus, this moisturizer also contains Ceramides (ceramide 2 0.35% - 0.65%). Ceramides are a type of lipids that our skin produces itself. They are a building block of the skin's barrier. Ceramides used in skincare are synthetic or extracted from plants. They work well for softening the skin surface and "patch holes" in the skin's barrier.
  • We like that this moisturizer contains peptides (palmitoyl oligopeptide 0.40% - 0.60%). There are many different kind of Peptides and they are naturally present in our skin. They all are a combination of aminoacids. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The science is still not settled on how effective Peptides are in skincare, but it is very likely that they have a benefit. Peptides might help restore the skin barrier and fight the signs of aging. At the very least, Peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
This product contains ingredients that could be beneficial, but their concentrations are too low in this formulation: jojoba oil and allantoin

Irritation risk

This moisturizer contains a bunch of common irritants, including ingredients that do not provide any known benefit for the skin. It might not be the best choice if your skin is sensitive. We assess the overall irritancy of this moisturizer to be high. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

About the brand

According to Cruelty-Free Kitty "Kate Somerville" is cruelty free, but its parent company is not.

Price

The product retails from 132.00£ up to 149.00£ in the United Kingdom, for 205.00CA$ in Canada and for 171.50$ in the United States.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 16 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Dimethicone as a protective ingredient in topical medicationsjaad.org
  3. 3
    Final Report on the Safety Assessment of Dimethicone Copolyoljournals.sagepub.com
  4. 4
    Hemp (Cannabis sativa L.) seed oil: Analytical and phytochemical characterization of unsaponifiable fractionpubs.acs.org
  5. 5
    Hemp (Cannabis sativa L.) as a Resource for Green Cosmeticstandfonline.com
  6. 6
    Anti-Inflammatory Activity of Babassu Oil and Development of a Microemulsion System for Topical Deliveryncbi.nlm.nih.gov
Kate Somerville Peptide K8™ Power Cream
Kate SomervillePeptide K8™ Power Cream
Buy at SpaceNK US$171.50Amazon

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Buy at SpaceNK US$171.50Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.