La Roche-Posay Toleriane Double Repair Face Moisturizer Versus Cetaphil Daily Hydrating Lotion with Hyaluronic Acid
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Squalane
Emollient
Dimethicone
Emollient
Zea Mays Starch
Absorbent
Niacinamide
Smoothing
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingMyristyl Myristate
Emollient
Stearic Acid
Cleansing
Ceramide NP
Skin Conditioning
Potassium Cetyl Phosphate
EmulsifyingGlyceryl Stearate Se
Emulsifying
Sodium Hydroxide
BufferingMyristic Acid
Cleansing
Palmitic Acid
Emollient
Capryloyl Glycine
CleansingCaprylyl Glycol
Emollient
Xanthan Gum
EmulsifyingWater, Glycerin, Squalane, Dimethicone, Zea Mays Starch, Niacinamide, Ammonium Polyacryloyldimethyl Taurate, Myristyl Myristate, Stearic Acid, Ceramide NP, Potassium Cetyl Phosphate, Glyceryl Stearate Se, Sodium Hydroxide, Myristic Acid, Palmitic Acid, Capryloyl Glycine, Caprylyl Glycol, Xanthan Gum
Water
Skin ConditioningDicaprylyl Carbonate
EmollientCyclopentasiloxane
Emollient
Glycerin
Humectant
Hydroxyethyl Urea
Humectant
Glyceryl Stearate
Emollient
PEG-100 Stearate
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingCaprylyl Glycol
Emollient
Cetyl Alcohol
Emollient
Erythritol
Humectant
Glycine Soja Oil
Emollient
Homarine Hcl
Skin ConditioningHydrolyzed Hyaluronic Acid
Humectant
Phenoxyethanol
Preservative
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Sodium Hydroxide
BufferingSodium PCA
Humectant
Tocopherol
Antioxidant
Water, Dicaprylyl Carbonate, Cyclopentasiloxane, Glycerin, Hydroxyethyl Urea, Glyceryl Stearate, PEG-100 Stearate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Caprylyl Glycol, Cetyl Alcohol, Erythritol, Glycine Soja Oil, Homarine Hcl, Hydrolyzed Hyaluronic Acid, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Sodium Hydroxide, Sodium PCA, Tocopherol
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Caprylyl 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 or alcohol, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolGlycerin (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 GlycerinSodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideWater. 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
