The INKEY List Brighten-I Eye Cream Versus Peter Thomas Roth Instant FIRMx Eye™
Updated on June 18, 2024
Overview
What they are
These products are both reef safe eye moisturizers. They have a total of 6 ingredients in common
Cool Features
They both contain exfoliants and Vitamin E
Suited For
They're both likely to be good for dry skin, brightening skin, sensitive skin and scar healing
Free From
They both do not contain any parabens
What's Inside
They both contain silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
The INKEY List Brighten-I Eye Cream 30 ingredients
Peter Thomas Roth Instant FIRMx Eye™ 35 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
The INKEY List Brighten-I Eye Cream 30 ingredients
Peter Thomas Roth Instant FIRMx Eye™ 35 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDimethicone
Emollient
Coco-Caprylate/Caprate
Emollient
Glycerin
Humectant
Caprylic/Capric Triglyceride
Masking
Glyceryl Stearate
Emollient
Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters
Emulsifying
Punica Granatum Seed Oil
Emollient
Ethylhexyl Palmitate
Emollient
Mica
Cosmetic Colorant
Phenoxyethanol
Preservative
Cetearyl Alcohol
Emollient
Sodium Stearoyl Lactylate
EmulsifyingBenzyl Alcohol
Perfuming
Polysilicone-11
Hydroxyacetophenone
Antioxidant
Sodium Stearoyl Glutamate
CleansingTocopheryl Acetate
Antioxidant
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingSodium Gluconate
Skin ConditioningEthylhexylglycerin
Skin ConditioningSilica
Abrasive
Dehydroacetic Acid
Preservative
Diglucosyl Gallic Acid
Sodium Hydroxide
BufferingTrihydroxystearin
Skin Conditioning
Tin Oxide
Abrasive
Sodium Hyaluronate
Humectant
Glucomannan
Skin ConditioningCI 77891
Cosmetic ColorantWater, Dimethicone, Coco-Caprylate/Caprate, Glycerin, Caprylic/Capric Triglyceride, Glyceryl Stearate, Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters, Punica Granatum Seed Oil, Ethylhexyl Palmitate, Mica, Phenoxyethanol, Cetearyl Alcohol, Sodium Stearoyl Lactylate, Benzyl Alcohol, Polysilicone-11, Hydroxyacetophenone, Sodium Stearoyl Glutamate, Tocopheryl Acetate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Gluconate, Ethylhexylglycerin, Silica, Dehydroacetic Acid, Diglucosyl Gallic Acid, Sodium Hydroxide, Trihydroxystearin, Tin Oxide, Sodium Hyaluronate, Glucomannan, CI 77891
Water
Skin ConditioningGlycerin
Humectant
Butylene Glycol
Humectant
Sodium Silicate
BufferingMagnesium Aluminum Silicate
AbsorbentSodium Magnesium Fluorosilicate
Abrasive
Palmitoyl Tetrapeptide-7
Skin Conditioning
Dipeptide-2
Skin Conditioning
Ascorbic Acid
Antioxidant
Tocopheryl Acetate
Antioxidant
Hesperidin Methyl Chalcone
Antioxidant
Retinyl Palmitate
Skin Conditioning
Panthenol
Skin Conditioning
Foeniculum Vulgare Seed Extract
Skin ConditioningMedicago Sativa Seed Extract
Skin ConditioningCarrageenan
Argania Spinosa Kernel Extract
Skin ConditioningPEG-8 Dimethicone
Emulsifying
Silica
Abrasive
Octyldodecanol
EmollientSymphytum Officinale Leaf Extract
Skin ConditioningSodium Propoxyhydroxypropyl Thiosulfate Silica
BHT
Antioxidant
Disodium EDTA
Hydrolyzed Lupine Protein
Skin ConditioningSteareth-20
CleansingSodium Cocoyl Glutamate
CleansingCarbomer
Emulsion StabilisingChlorhexidine Digluconate
Antimicrobial
Ethylhexylglycerin
Skin ConditioningPotassium Sorbate
Preservative
Citric Acid
Buffering
Sodium Citrate
BufferingSodium Benzoate
Masking
Phenoxyethanol
Preservative
Water, Glycerin, Butylene Glycol, Sodium Silicate, Magnesium Aluminum Silicate, Sodium Magnesium Fluorosilicate, Palmitoyl Tetrapeptide-7, Dipeptide-2, Ascorbic Acid, Tocopheryl Acetate, Hesperidin Methyl Chalcone, Retinyl Palmitate, Panthenol, Foeniculum Vulgare Seed Extract, Medicago Sativa Seed Extract, Carrageenan, Argania Spinosa Kernel Extract, PEG-8 Dimethicone, Silica, Octyldodecanol, Symphytum Officinale Leaf Extract, Sodium Propoxyhydroxypropyl Thiosulfate Silica, BHT, Disodium EDTA, Hydrolyzed Lupine Protein, Steareth-20, Sodium Cocoyl Glutamate, Carbomer, Chlorhexidine Digluconate, Ethylhexylglycerin, Potassium Sorbate, Citric Acid, Sodium Citrate, Sodium Benzoate, Phenoxyethanol
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin 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 GlycerinPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent 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.
Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.
Tocopheryl Acetate is commonly found in both skincare and dietary supplements.
Learn more about Tocopheryl AcetateEthylhexylglycerin (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.
Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.
Silica is often used for absorption and can help reduce shine when products are applied. Silica occurs in naturally in materials like clay and sandstone, and it can also be produced synthetically.
Silica is present naturally within the skin during collagen production and when reducing inflammation.
Learn more about SilicaIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The INKEY List Brighten-I Eye Cream 30 ingredients
Peter Thomas Roth Instant FIRMx Eye™ 35 ingredients
Reviews
Here's what our community thinks
The INKEY List Brighten-I Eye Cream 30 ingredients
Good, but not a stand-alone eye product
Like everything from the Inkey List, this is affordable, reliable, and well formulated, if not a product no one can live without. To get the full benefit, you have to use a hydrating toner/mist and pair this eye cream with the Inkey List caffeine eye cream in the morning and retinol eye cream at night.
Irritating and gave me an allergic reaction. The applicator is made of nickel.
