Works for:
based on ingredients and %- Anti-aging
- Moisturizing
Doesn't work for:
based on ingredients and %- Evens skin tone
Can it cause trouble?
- Irritation risk: high
- Comedogenic risk ingredients: 3
Key actives
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.
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.
Anti-aging
What does the product description say?
Radiant aging
Source: Kate Somerville
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.
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
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)
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.
Moisturizing
What does the product description say?
moisturizer
Source: Kate Somerville
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: dimethicone, squalane.
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
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
Naturally present in skin and helps to attract water to its upper layer
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
A plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layer
An emollient that is naturally found in skin
Helps attract water to the upper layer of the skin
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
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
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
A sugar that attracts water to the upper layer of the skin
An emollient that helps soften the skin. Could be comedogenic
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.
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
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
A silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin
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
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
An emollient that helps create a nice silky finish on the skin
Helps oil and water mix together and works as an emollient
Helps soften the upper layer of the skin
Used to create a thicker product consistency and soften the upper layer of the skin
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
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.
A plant oil that can help soften the upper layer of the skin. Might be helpful in calming down inflammation in skin
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)
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
Evens skin tone
What does the product description say?
improve skin texture and tone
Source: Kate Somerville
Effective ingredients missing or their concentration is too low
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)
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Moisturizing | |
| Evens skin tone |
Total Promises Fulfilled score: 66/100.
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Potential irritants
Comedogenic ingredients
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 Kate Somerville Peptide K8™ Power Cream | Current | $132.00 | |
Dieux Instant Angel Skin Restoring Moisturizer | 60% | $45.00 | |
Dieux Skin Instant Angel | 60% | $45.00 | |
 Perricone MD Neuropeptide Night Cream | 59% | $84.00 | |
 Dermadoctor Wrinkle Revenge Rescue & Protect Facial Cream | 56% | $38.95 | |
 Eveline Cosmetics Bio Hyaluron Expert | 54% | $91.00 |
Key Actives
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
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
A silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin
A plant oil that can help soften the upper layer of the skin. Might be helpful in calming down inflammation in skin
An emollient that is naturally found in skin
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
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
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
An emollient that helps soften the skin. Could be comedogenic
A plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layer
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
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.
Naturally present in skin and helps to attract water to its upper layer
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.
A sugar that attracts water to the upper layer of the skin
Helps attract water to the upper layer of the skin
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
Potential irritants
An aromatic blend of unspecified and possibly irritating ingredients
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
Helps oil and water mix together. Has some emollient properties
A plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layer
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
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
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.
Used to adjust pH of the product and can help improve the product's smell
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.
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.
Can work as an exfoliant but is typically used to adjust the product pH
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)
Comedogenic ingredients
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
Helps oil and water mix together. Has some emollient properties
An emollient that helps soften the skin. Could be comedogenic
All ingredients
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
Helps oil and water mix together. Has some emollient properties
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
An emollient that helps soften the skin. Could be comedogenic
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
A silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin
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
A plant oil that due to its high linoleic acid content can help strengthen skin's barrier function and soften its upper layer
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
A plant oil that can help soften the upper layer of the skin. Might be helpful in calming down inflammation in skin
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.
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
Naturally present in skin and helps to attract water to its upper layer
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
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.
Used to create a thicker product consistency and soften the upper layer of the skin
Used to adjust pH of the product and can help improve the product's smell
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
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.
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
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.
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
An emollient that helps create a nice silky finish on the skin
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
Can work as an exfoliant but is typically used to adjust the product pH
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)
An aromatic blend of unspecified and possibly irritating ingredients
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
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, Serica, 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
- Glycerol and the skin: holistic approach to its origin and functions
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Hemp (Cannabis sativa L.) seed oil: Analytical and phytochemical characterization of unsaponifiable fraction
- Hemp (Cannabis sativa L.) as a Resource for Green Cosmetics
- Anti-Inflammatory Activity of Babassu Oil and Development of a Microemulsion System for Topical Delivery
- Topical urea in skincare: A review
- Fatty acids profile of oil from nine varieties of Macadamia nut
- Profile of wound healing process induced by allantoin
- Topical emulsions containing ceramides: Effects on the skin barrier function and anti‐inflammatory properties
- Topically Applied Ceramides Interact with the Stratum Corneum Lipid Matrix in Compromised Ex Vivo Skin
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Epidermal and dermal effects of topical lactic acid
- Dual Effects of Alpha-Hydroxy Acids on the Skin
- Annex I: Clinical evidence regarding sensitisation to individual fragrance chemicals and to natural extracts