La Roche-Posay Redermic R Eyes Anti-Aging Eye Cream with Retinol Versus La Roche-Posay Redermic Vitamin C Anti-Ageing Eye Cream
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningIsocetyl Stearate
Emollient
Glycerin
Humectant
Octyldodecanol
Emollient
Propylene Glycol
Humectant
Pentylene Glycol
Skin Conditioning
Dimethicone
Emollient
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
Emulsion StabilisingCetearyl Alcohol
Emollient
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Caffeine
Skin Conditioning
Isohexadecane
EmollientSodium Hyaluronate
Humectant
Sodium Hydroxide
BufferingRetinol
Skin Conditioning
Retinyl Linoleate
Skin Conditioning
Adenosine
Skin Conditioning
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingCaprylyl Glycol
Emollient
Citric Acid
Buffering
Polysilicone-8
Polysorbate 80
Emulsifying
Phenoxyethanol
Preservative
Water, Isocetyl Stearate, Glycerin, Octyldodecanol, Propylene Glycol, Pentylene Glycol, Dimethicone, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Cetearyl Alcohol, Dimethicone/Vinyl Dimethicone Crosspolymer, Caffeine, Isohexadecane, Sodium Hyaluronate, Sodium Hydroxide, Retinol, Retinyl Linoleate, Adenosine, Ammonium Polyacryloyldimethyl Taurate, Caprylyl Glycol, Citric Acid, Polysilicone-8, Polysorbate 80, Phenoxyethanol
Water
Skin ConditioningGlycerin
Humectant
Dimethicone
Emollient
Butyrospermum Parkii Butter
Skin Conditioning
Limnanthes Alba Seed Oil
Skin Conditioning
Ascorbic Acid
Antioxidant
Mannose
HumectantButylene Glycol
Humectant
Paraffinum Liquidum
Emollient
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingCetyl Alcohol
Emollient
Potassium Hydroxide
BufferingPEG-100 Stearate
Surfactant
Glyceryl Stearate
Emollient
Polymethylsilsesquioxane
Paraffin
Skin ConditioningMicrocrystalline Wax
Emulsion StabilisingMadecassoside
Antioxidant
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Dimethiconol
Emollient
Disodium EDTA
Propylene Glycol
Humectant
Hydrolyzed Hyaluronic Acid
Humectant
Caprylyl Glycol
Emollient
Citric Acid
Buffering
Acetyl Dipeptide-1 Cetyl Ester
Skin Conditioning
Xanthan Gum
EmulsifyingToluene Sulfonic Acid
SurfactantPentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Phenoxyethanol
Preservative
Water, Glycerin, Dimethicone, Butyrospermum Parkii Butter, Limnanthes Alba Seed Oil, Ascorbic Acid, Mannose, Butylene Glycol, Paraffinum Liquidum, Ammonium Polyacryloyldimethyl Taurate, Cetyl Alcohol, Potassium Hydroxide, PEG-100 Stearate, Glyceryl Stearate, Polymethylsilsesquioxane, Paraffin, Microcrystalline Wax, Madecassoside, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethiconol, Disodium EDTA, Propylene Glycol, Hydrolyzed Hyaluronic Acid, Caprylyl Glycol, Citric Acid, Acetyl Dipeptide-1 Cetyl Ester, Xanthan Gum, Toluene Sulfonic Acid, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It works as a thickener, emulsifier, and texture enhancer that gives gel-creams a silky, lightweight feel.
This ingredient is versatile and low-maintenance so manufacturers love working with it.
Typical usage levels in cosmetics are usually low and in the range of 0.015 - 2.3%.
Learn more about Ammonium Polyacryloyldimethyl TaurateCaprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolCitric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Read more about some other popular AHA's here:
Learn more about Citric AcidDimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeThis ingredient is a silicone elastomer that works as a texture enhancer, adds a silky slip, and also helps absorb excess oil.
Because it's a large macromolecule that's insoluble in water and chemically inert, it's not expected to penetrate or be absorbed into skin.
Human patch tests with a facial lotion containing 1% of this ingredient found no sensitization.
Learn more about Dimethicone/Vinyl Dimethicone CrosspolymerGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
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.
Propylene Glycol is a synthetic, colorless, odorless liquid that has been a staple in cosmetics for decades. It is a skin conditioning agent, humectant, and solvent.
As a humectant, it draw water to the skin to reduce flaking and restore suppleness. It's also a solvent that helps dissolve other actives and keeps formulas stable across temperature changes.
The CIR Expert Panel has confirmed this ingredient to be nontoxic and clinical studies show no sensitization at cosmetic use concentrations.
True allergic reactions are quite rare: a 15-year retrospective study of 6,751 patients found only 0.31% had a positive reaction (and less than half were considered clinically relevant).
It seemed that when sensitization does occur, it's most commonly linked to topical medication (like corticosteroids) and not cosmetics. Allergic contact dermatitis also appears largely limited to individuals with underlying skin conditions.
Overall, propylene glycol is a well-studied ingredient that most people can tolerate without issue.
Learn more about Propylene GlycolWater. 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. Remember to stay hydrated!
Learn more about Water
