Here's our complete breakdown comparing the ingredients, attributes, and more of Peter Thomas Roth FIRMx Collagen Serum versus Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum .
Published on May 26, 2021
Overview
What they are
These products are both reef safe serums. They have a total of 14 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, scar healing and better texture
Free From
They both do not contain any harsh alcohols, oils, parabens or sulfates
What's Inside
They both contain silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Price
Ingredient Info
Peter Thomas Roth FIRMx Collagen Serum 39 ingredients
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum 40 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Malassezia Safe
This product is free of malassezia feeding ingredients 🎉
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
At a glance
Click on any of the items below to learn more
Peter Thomas Roth FIRMx Collagen Serum 39 ingredients
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum 40 ingredients
Notable Ingredients
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Benefits
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Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Benefits
This product contains 4 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Peter Thomas Roth FIRMx Collagen Serum 39 ingredients
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum 40 ingredients
Collagen • Water • Dimethicone • Butylene Glycol • Polysilicone-11 • Glycerin • Caffeine • Squalane • Soluble Collagen • Collagen Amino Acids • Hydrolyzed Collagen • Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine • Palmitoyl Tripeptide-5 • Acetyl Tetrapeptide-2 • Sodium Hyaluronate • Hydroxyproline • Sodium Citrate • Citric Acid • Acrylamide/Sodium Acryloyldimethyltaurate Copolymer • Ammonium Acryloyldimethyltaurate Crosspolymer • Hydroxystearic Acid • Magnesium Chloride • Polysorbate 20 • Polysorbate 80 • Sodium Hydroxide • Sorbitan Isostearate • Decyl Glucoside • Lauryl Glucoside • Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate • Leuconostoc/Radish Root Ferment Filtrate • Disodium EDTA • Potassium Sorbate • Sodium Benzoate • Isohexadecane • Ethylhexylglycerin • Hexylene Glycol • Caprylyl Glycol • Phenoxyethanol • CI 77015
Water • Dimethicone • Propanediol • Dimethyl Isosorbide • Hydrolyzed Vegetable Protein • Glycerin • Polysilicone-11 • Ammonium Acryloyldimethyltaurate/Vp Copolymer • Butylene Glycol • Polymethylsilsesquioxane • Trehalose • Betaine • Hydrolyzed Hyaluronic Acid • Sodium Hyaluronate • Disodium Acetyl Glucosamine Phosphate • Polyglutamic Acid • Zanthoxylum Bungeanum Fruit Extract • Copper Lysinate/Prolinate • Methylglucoside Phosphate • Chondrus Crispus Extract • Glycine Soja Extract • Aloe Barbadensis Leaf Juice • Adenosine • Peg-12 Dimethicone • Phenoxyethanol • Hdi/Trimethylol Hexyllactone Crosspolymer • Oleyl Alcohol • Decyl Glucoside • Parfum • Ethylhexylglycerin • Disodium EDTA • Gluconolactone • Benzyl Salicylate • Citric Acid • Linalool • Sodium Benzoate • Caprylyl Glycol • Hexylene Glycol • Geraniol • Citronellol
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterPeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 2.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 1.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.
Peter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 3.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 2.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
Peter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 4.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 9.
We don't have a description for Polysilicone-11.
Peter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 5.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 7.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinPeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 6.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 6.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronatePeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 15.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 14.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and look more even.
Read more about some other popular AHA's here:
Learn more about Citric AcidPeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 18.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 34.
Decyl Glucoside is a glucose-based surfactant. Surfactants help clean the skin by trapping oil, sebum, and dirt to be washed away.
It is created by reacting glucose with the fatty acids from plants.
Decyl Glucoside also helps stabilize the ingredients in a product by preventing them from separating.
This ingredient is biodegradable and non-toxic. This ingredient is commonly found in baby shampoos.
Decyl Glucoside is sometimes used to stabilize the UV filter Tinosorb.
Learn more about Decyl GlucosidePeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 27.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 28.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAPeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 31.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 31.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
Sodium Benzoate is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoatePeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 33.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 36.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Peter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 35.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 30.
Hexylene Glycol is a surfactant. Glycols are a class of alcohols. Hexylene Glycol is a surfactant and emulsifier.
As a surfactant, Hexylene Glycol helps gather dirt and oil on your skin to be washed away.
As an emulsifier, Hexylene Glycol helps keep water and oil together. This prevents them from separating in a product. Hexylene Glycol also thins out the texture of a product by lessening viscosity.
Hexylene Glycol has a small molecular weight.
Learn more about Hexylene GlycolPeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 36.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 38.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolPeter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 37.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 37.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Peter Thomas Roth FIRMx Collagen Serum contains this as ingredient number 38.
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum contains this as ingredient number 25.
Here's what our community thinks of the ingredients in these two products.
Peter Thomas Roth FIRMx Collagen Serum 39 ingredients
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum 40 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Peter Thomas Roth FIRMx Collagen Serum 39 ingredients
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum 40 ingredients
Reviews
Here's what our community thinks
Peter Thomas Roth FIRMx Collagen Serum 39 ingredients
Kate Somerville Wrinkle Warrior™ 2-in-1 Plumping Moisturizer + Serum 40 ingredients
Alternatives
Our Dupe Finder has found 32 potential alternatives that have similar ingredients to Peter Thomas Roth FIRMx Collagen Serum.
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