Kate Somerville Kateceuticals Firming Serum
Works for
MoisturizingCeramide ng, Palmitoyl tripeptide-5 + 14 moreWorks well
“What it is: A clinically effective serum with tri-peptides and hyaluronic acid that visibly smooths texture, plumps skin, and improves firmness.”
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 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: dimethicone, isocetyl stearate.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: ceramide ng, palmitoyl tripeptide-5
Anti-agingAdenosine, Palmitoyl tripeptide-5 + 3 moreWorks well
“Clinically formulated with hyaluronic acid and advanced peptides, it visibly lifts, smooths, and improves skin elasticity for a firmer, more youthful complexion.”
This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains adenosine.
These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: palmitoyl tripeptide-5.
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.
Can it cause trouble?
Irritancy10 strong irritants: Citrus aurantifolia oil, Citrus aurantium dulcis peel oil + 8 more — patch-test recommendedHigh risk
ComedogenicClean of flagged comedogenic ingredientsNone flagged
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Ingredients
Filter by role to see what each ingredient is doing.
Water~45–55%
Dimethicone~5.6–6.9%
- Irritation risk
- Low
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 DimethiconeIsohexadecane~4.6–5.6%
- Irritation risk
- Low
Improves the texture of the product and helps soften the skin. Helps oil and water mix together and can be used as a cleansing agent
More about IsohexadecaneGlycerin~3.1–3.8%
- Irritation risk
- Low
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 GlycerinPropanediol~2.4–2.9%
- Irritation risk
- Low
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
More about PropanediolPolysilicone-11~2–2.5%
- Irritation risk
- Low
A silicone that forms a light film on the skin surface helping to bind water and temporarily absorb oils creating a matt and powdery feel
More about Polysilicone-11Diisopropyl sebacate~1.7–2.1%
- Irritation risk
- Low
Helps soften the upper layer of the skin without creatng a greasy finish
More about Diisopropyl sebacatePolysorbate 20~1.5–1.8%
Isocetyl stearate~1.2–1.5%
- Irritation risk
- Low
An emollient that helps soften the skin
More about Isocetyl stearateMyristyl alcohol~1–1.2%
- Irritation risk
- High
Helps to stabilize the product formulation while softening the upper layer of the skin. Can be irritating
More about Myristyl alcoholDipalmitoyl hydroxyproline~0.7–1%
- Irritation risk
- Low
Is claimed to stimulate collagen and elastin production, as well as work as an anti-oxidant. There is however not enough evidence for its effectiveness
More about Dipalmitoyl hydroxyprolineGlycine soja seed extract~0.65–0.95%
- Irritation risk
- Medium
An emollient that helps soften the skin. Might be somewhat helpful in evening the skin tone.
More about Glycine soja seed extractAdenosine~0.5–0.75%
- Irritation risk
- Low
Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)
More about AdenosineCeramide ng~0.5–0.75%
- Irritation risk
- Low
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 ngPisum sativum extract~0.45–0.65%
- Irritation risk
- Medium
Might be helpful in protecting skin collagen and elastin from breaking down but solid research is lacking
More about Pisum sativum extractSodium hyaluronate~0.45–0.65%
- Irritation risk
- Low
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
More about Sodium hyaluronatePalmitoyl tripeptide-5~0.4–0.6%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Palmitoyl tripeptide-5Tropaeolum majus flower/leaf/stem extract~0.35–0.6%
- Irritation risk
- Low
Citrus aurantifolia oil~0.35–0.6%
- Irritation risk
- High
Citrus aurantium dulcis peel oil~0.3–0.55%
- Irritation risk
- High
An essentil oil from orange peel. Potential allergen and can be irritating
More about Citrus aurantium dulcis peel oilCitrus paradisi peel oil~0.25–0.5%
Mentha piperita oil~0.25–0.45%
Zingiber officinale root oil~0.2–0.35%
- Irritation risk
- High
An essential oil that is likely to be irritating and can cause photosensitivity
More about Zingiber officinale root oilCitrus aurantium bergamia fruit oil~0.25–0.45%
- Irritation risk
- High
A plant oil with a high content of volatile compounds that can irritate the skin and lead to allergic reactions. Can lead to photosensitivity
More about Citrus aurantium bergamia fruit oilTocopherol~0.25–0.5%
- Irritation risk
- Low
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 TocopherolMyristyl glucoside~0.3–0.6%
- Irritation risk
- Low
Polymethylsilsesquioxane~0.3–0.5%
- Irritation risk
- Low
A silicone that improves product texture and helps dissolve other ingredients. Can form a non-greasy film on the skin to prevent moisture loss
More about PolymethylsilsesquioxanePolyacrylate-13~0.3–0.55%
- Irritation risk
- Low
Used to create a thicker product consistency and stabilize the product formulation
More about Polyacrylate-13Commiphora mukul resin extract~0.25–0.45%
- Irritation risk
- High
A plant extract might be helpful in neutralizing free radicals and reducing inflammation in skin
More about Commiphora mukul resin extractSucrose palmitate~0.3–0.55%
Polysorbate 80~0.3–0.5%
Polyisobutene~0.3–0.5%
Ammonium polyacryloyldimethyl taurate~0.25–0.5%
- Irritation risk
- Low
Used to create a thicker product consistency
More about Ammonium polyacryloyldimethyl taurateCaprylic/capric triglyceride~0.3–0.55%
- Irritation risk
- Medium
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 triglycerideGlyceryl linoleate~0.3–0.55%
- Irritation risk
- Medium
Helps oil and water mix together
More about Glyceryl linoleateTocopheryl acetate~0.25–0.45%
- Irritation risk
- Medium
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 acetateAminomethyl propanol~0.25–0.4%
Sorbitan isostearate~0.25–0.45%
- Irritation risk
- Low
Helps oil and water mix together
More about Sorbitan isostearatePotassium sorbate~0.2–0.4%
Citric acid~0.2–0.35%
- Irritation risk
- Medium
Can work as an exfoliant but is typically used to adjust the product pH
More about Citric acidDisodium edta~0.15–0.3%
Ethylhexylglycerin~0.15–0.3%
Phenoxyethanol~0.15–0.3%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolCitral~0.15–0.25%
Limonene~0.1–0.15%
- Irritation risk
- High
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
More about LimoneneLinalool~0.1–0.15%
Ingredient list view
Water, Dimethicone, Isohexadecane, Glycerin, Propanediol, Polysilicone-11, Diisopropyl sebacate, Polysorbate 20, Isocetyl stearate, Myristyl alcohol, Dipalmitoyl hydroxyproline, Glycine soja seed extract, Adenosine, Ceramide ng, Pisum sativum extract, Sodium hyaluronate, Palmitoyl tripeptide-5, Tropaeolum majus flower/leaf/stem extract, Citrus aurantifolia oil, Citrus aurantium dulcis peel oil, Citrus paradisi peel oil, Mentha piperita oil, Zingiber officinale root oil, Citrus aurantium bergamia fruit oil, Tocopherol, Myristyl glucoside, Polymethylsilsesquioxane, Polyacrylate-13, Commiphora mukul resin extract, Sucrose palmitate, Polysorbate 80, Polyisobutene, Ammonium polyacryloyldimethyl taurate, Caprylic/capric triglyceride, Glyceryl linoleate, Tocopheryl acetate, Aminomethyl propanol, Sorbitan isostearate, Potassium sorbate, Citric acid, Disodium edta, Ethylhexylglycerin, Phenoxyethanol, Citral, Limonene, Linalool
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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.
| Kate SomervilleKateceuticals Firming SerumYOUR PRODUCT | Farm StayBlack Snail & Peptide9 Perfect Serum | numbuzinNo. 4 Collagen 73% Pudding Serum | Dr.Reju-AllReju-All Advanced PDRN Copper Peptide Serum | |
|---|---|---|---|---|
| Match | — | 54% | 52% | 52% |
| Price | $119.00 | $20.50−$98.50 | $19.60−$99.40 | $24.38−$94.62 |
| Shared key ingredients | — | 6 of 11 | 5 of 11 | 5 of 11 |
| Key difference | — | Oligopeptide-32 | Niacinamide | Acetyl Tetrapeptide-9 |
| Irritancy | High | Medium | Medium | Medium |
| Drying alcohol | — | — | — | — |
| View product | Shop | Shop | Shop |
More alternatives: BIODANCE Pore tightening collagen ampouleMedicube PDRN Pink Exosome Shot Serum 2000
Product summary
"Kate Somerville - Kateceuticals Firming Serum" is effective for: Anti-aging and Moisturizing
Ingredient callouts
- Ceramides (ceramide ng 0.50% - 0.75%). Ceramides are an important part of our natural skin barrier. The Ceramides used in skincare are synthetic or come from plants. They help soften the skin and can help "fill the gaps" in the skin barrier, keeping the skin hydrated and resilient for longer.
- Peptides (palmitoyl tripeptide-5 0.40% - 0.60%). Peptides are a very big group of ingredients. They all consist of a different combination of aminoacids. Our skin produces Peptides naturally. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The scientists are still studying how effective the topical application of Peptides is, but it is very likely that theynare helpful. Peptides might be able to support skin barrier restoration and even have an anti-aging benefit. At the very least, they certainly help attract water to the skin and support the hydration in this way.
- Adenosine 0.50% - 0.75%. It is a compound that in involved in many biological processes inside the skin cells. According one high-quality clinical trial, topical Adenosine in low concentrations can somewhat help improve "deep wrinkles" - the wrinkles that appear with age in places where our faces are most dynamic (for example, on the forehead or in the corners of the eyes).
- Humectants (glycerin 3.10% - 3.80% and sodium hyaluronate 0.45% - 0.65%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
About the brand
According to Cruelty-Free Kitty "Kate Somerville" is cruelty free, but its parent company is not.
Price
The product retails from 110.00$ up to 122.00$ in the United States, from 36.00£ up to 105.00£ in the United Kingdom and for 143.00CA$ in Canada.
For a detailed price comparison: click here.
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 20 studies and safety reviews.
- 1
- 2Final Report on the Safety Assessment of Dimethicone Copolyoljournals.sagepub.com
- 3
- 4Cosmetic allergy from myristyl alcoholncbi.nlm.nih.gov
- 5
- 6Patch testing with myristyl alcoholresearchgate.net
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