Medik8 Copper PCA Peptides Mineral Antioxidant Peptide Serum Versus SkinCeuticals A.G.E. Eye Complex
Updated on July 22, 2024
Overview
Cool Features
They both contain peptides
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores and scar healing
Free From
They both do not contain any oils or sulfates
What's Inside
They both contain fragrances and 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
Medik8 Copper PCA Peptides Mineral Antioxidant Peptide Serum 37 ingredients
SkinCeuticals A.G.E. Eye Complex 40 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
Medik8 Copper PCA Peptides Mineral Antioxidant Peptide Serum 37 ingredients
SkinCeuticals A.G.E. Eye Complex 40 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCyclopentasiloxane
Emollient
Glycerin
Humectant
Caprylic/Capric Triglyceride
Masking
Stearic Acid
Cleansing
Polyacrylamide
Cyclohexasiloxane
Emollient
Theobroma Cacao Seed Butter
Emollient
Phenoxyethanol
Preservative
C13-14 Isoparaffin
Emollient
Bis-Diglyceryl Polyacyladipate-2
Emollient
Cetearyl Alcohol
Emollient
Copper PCA
HumectantNiacinamide
Smoothing
Butylene Glycol
Humectant
Benzyl Alcohol
Perfuming
Laureth-7
EmulsifyingPolysilicone-11
Triethanolamine
BufferingAminobutyric Acid
CI 77120
Cosmetic ColorantAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingEthylhexylglycerin
Skin ConditioningPalmitoyl Tripeptide-1
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Dimethylmethoxy Chromanol
Antioxidant
Centella Asiatica Extract
Cleansing
Panax Ginseng Root Extract
Emollient
Portulaca Oleracea Extract
Skin Conditioning
Dehydroacetic Acid
Preservative
Carbomer
Emulsion StabilisingPolysorbate 20
Emulsifying
Pentylene Glycol
Skin ConditioningSodium Benzoate
Masking
Superoxide Dismutase
Antioxidant
Tromethamine
BufferingSodium Metabisulfite
Antioxidant
Water, Cyclopentasiloxane, Glycerin, Caprylic/Capric Triglyceride, Stearic Acid, Polyacrylamide, Cyclohexasiloxane, Theobroma Cacao Seed Butter, Phenoxyethanol, C13-14 Isoparaffin, Bis-Diglyceryl Polyacyladipate-2, Cetearyl Alcohol, Copper PCA, Niacinamide, Butylene Glycol, Benzyl Alcohol, Laureth-7, Polysilicone-11, Triethanolamine, Aminobutyric Acid, CI 77120, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ethylhexylglycerin, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Dimethylmethoxy Chromanol, Centella Asiatica Extract, Panax Ginseng Root Extract, Portulaca Oleracea Extract, Dehydroacetic Acid, Carbomer, Polysorbate 20, Pentylene Glycol, Sodium Benzoate, Superoxide Dismutase, Tromethamine, Sodium Metabisulfite
Water
Skin ConditioningGlycerin
Humectant
Dimethicone
Emollient
Isohexadecane
EmollientParaffin
Perfuming
Propylene Glycol
Humectant
Silica
Abrasive
Polyglyceryl-4 Isostearate
Emulsifying
Cetyl PEG/PPG-10/1 Dimethicone
Emulsifying
Hexyl Laurate
Emollient
Nylon-12
Hydroxypropyl Tetrahydropyrantriol
Skin ConditioningMethylsilanol/Silicate Crosspolymer
Skin ConditioningPolyethylene
Abrasive
Ascorbyl Glucoside
Antioxidant
Caprylic/Capric Triglyceride
Masking
Octyldodecanol
EmollientPhenoxyethanol
Preservative
Tocopheryl Acetate
Antioxidant
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingPEG-6 Isostearate
Emulsifying
Triethanolamine
BufferingSodium Citrate
BufferingMethylparaben
Preservative
Chlorphenesin
Antimicrobial
Caffeine
Skin Conditioning
Titanium Dioxide
Cosmetic Colorant
Ethylparaben
Preservative
Menthoxypropanediol
Masking
Vaccinium Myrtillus Fruit Extract
Skin ConditioningHesperidin Methyl Chalcone
Antioxidant
Pentasodium Pentetate
Aluminum Hydroxide
EmollientStearic Acid
Cleansing
Hesperetin Laurate
Antioxidant
N-Hydroxysuccinimide
Skin ConditioningDipeptide-2
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Palmitoyl Oligopeptide
Cleansing
Chrysin
Skin ConditioningWater, Glycerin, Dimethicone, Isohexadecane, Paraffin, Propylene Glycol, Silica, Polyglyceryl-4 Isostearate, Cetyl PEG/PPG-10/1 Dimethicone, Hexyl Laurate, Nylon-12, Hydroxypropyl Tetrahydropyrantriol, Methylsilanol/Silicate Crosspolymer, Polyethylene, Ascorbyl Glucoside, Caprylic/Capric Triglyceride, Octyldodecanol, Phenoxyethanol, Tocopheryl Acetate, Ammonium Polyacryloyldimethyl Taurate, PEG-6 Isostearate, Triethanolamine, Sodium Citrate, Methylparaben, Chlorphenesin, Caffeine, Titanium Dioxide, Ethylparaben, Menthoxypropanediol, Vaccinium Myrtillus Fruit Extract, Hesperidin Methyl Chalcone, Pentasodium Pentetate, Aluminum Hydroxide, Stearic Acid, Hesperetin Laurate, N-Hydroxysuccinimide, Dipeptide-2, Palmitoyl Tetrapeptide-7, Palmitoyl Oligopeptide, Chrysin
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
This ingredient is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
It helps thicken a product's formula and makes it easier to spread by dissolving clumping compounds.
Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid.
While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.
Learn more about Caprylic/Capric TriglycerideGlycerin 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 GlycerinPalmitoyl Tetrapeptide-7 is a lab-made peptide with anti-inflammatory and skin-repairing benefits. It's made up of four amino acids (glycine, glutamine, proline, and arginine) and palmitic acid (which helps it penetrate skin more effectively).
This ingredient helps reduce inflammation by limiting the production of interleukin-6 (IL-6), a chemical that triggers inflammatory responses, particularly after UV exposure.
Less inflammation = slower collagen breakdown and a longer-lasting, youthful appearance.
Palmitoyl Tetrapeptide-7 also stimulates collagen production and supports a healthier skin barrier.
Over time, this can improve skin firmness, hydration, and reduce the appearance of fine lines. It’s commonly paired with Palmitoyl Tripeptide-1 in the well-known Matrixyl 3000 complex for enhanced anti-aging effects.
This ingredient has been shown to be effective and safe in cosmetic use and you'll typically find it in small amounts (less than 0.01%).
Due to its palmitic acid base, it may not be safe for Malassezia folliculitis.
Read more about other common types of peptides here:
Learn more about Palmitoyl Tetrapeptide-7Phenoxyethanol 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.
Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.
As an emollient, stearic acid helps soften skin. It aids the skin's protective barrier by preventing water loss. It also provides a gentle cleansing effect without stripping away natural oils.
Stearic acid may also be used to enhance the texture of products. It can add volume and stabilize ingredients such as water and oil. This can help water and oil ingredients from separating.
Sources of stearic acid include animal or vegetable fats/oils such as coconut or shea. It can be naturally found in butter, cocoa butter, shea butter, vegetable fats, and animal tallow.
This ingredient may not be Malassezia folliculitis, or fungal-acne safe.
Learn more about Stearic AcidTriethanolamine is an emulsifier and pH adjuster. It is created using ethylene oxide and ammonia. This gives Triethanolamine a nitrogen core and a similar scent to ammonia.
As an emulsifier, it prevents ingredients from separating and enhances texture by adding volume to a product.
PH adjusters are common in cosmetic products. The pH of a product can affect the effectiveness of other ingredients. A product with a high pH may also irritate the skin.
Learn more about TriethanolamineWater. 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 WaterIngredient Ratings
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When to use
Medik8 Copper PCA Peptides Mineral Antioxidant Peptide Serum 37 ingredients
SkinCeuticals A.G.E. Eye Complex 40 ingredients
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Medik8 Copper PCA Peptides Mineral Antioxidant Peptide Serum 37 ingredients
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