Skin science article
La Roche-Posay Toleriane Double Repair Face Moisturizer Versus Paula's Choice Calm Redness Relief SPF 30 Mineral Moisturizer for Normal to Dry Skin
La Roche-Posay Toleriane Double Repair Face Moisturizer Versus Paula's Choice Calm Redness Relief SPF 30 Mineral Moisturizer for Normal to Dry Skin This barrier-repair moisturizer is formulated around Squalane and Niacinamide to strengthen the skin barrier and
La Roche-Posay Toleriane Double Repair Face Moisturizer Versus Paula's Choice Calm Redness Relief SPF 30 Mineral Moisturizer for Normal to Dry Skin
This barrier-repair moisturizer is formulated around Squalane and Niacinamide to strengthen the skin barrier and hydrate skin.
This calming moisturizer is formulated around Avena Sativa Kernel Extract and Allantoin to calm redness and hydrate skin.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
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, 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
Titanium Dioxide 3.85%
Zinc Oxide 3.12%
C12-15 Alkyl Benzoate
Isononyl Isononanoate
Prunus Armeniaca Kernel Oil
Cyclopentasiloxane
Glyceryl Stearate
PEG-100 Stearate
Butylene Glycol
Pentylene Glycol
Cetearyl Alcohol
Glycine Soja Sterols
Vp/Eicosene Copolymer
Avena Sativa Kernel Extract
Sodium Hyaluronate
Allantoin
Tocopheryl Acetate
Hydrogenated Lecithin
Tetrahexyldecyl Ascorbate
Superoxide Dismutase
Ubiquinone
Ceramide Ng
Methicone
Palmitoyl Hexapeptide-12
PEG-10 Dimethicone
Cucumis Sativus Fruit Extract
Caprylic/Capric Triglyceride
Tribehenin
PEG-10 Phytosterol
Sorbitan Stearate
Polyhydroxystearic Acid
Alumina
Polysorbate 20
Aluminum Stearate
Disodium EDTA
Ethylhexylglycerin
Phenoxyethanol
Chlorphenesin
Titanium Dioxide 3.85%, Zinc Oxide 3.12%, Water, C12-15 Alkyl Benzoate, Isononyl Isononanoate, Prunus Armeniaca Kernel Oil, Cyclopentasiloxane, Glyceryl Stearate, PEG-100 Stearate, Butylene Glycol, Pentylene Glycol, Cetearyl Alcohol, Dimethicone, Glycine Soja Sterols, Vp/Eicosene Copolymer, Avena Sativa Kernel Extract, Glycerin, Sodium Hyaluronate, Allantoin, Tocopheryl Acetate, Hydrogenated Lecithin, Tetrahexyldecyl Ascorbate, Superoxide Dismutase, Ubiquinone, Ceramide Ng, Methicone, Palmitoyl Hexapeptide-12, PEG-10 Dimethicone, Cucumis Sativus Fruit Extract, Caprylic/Capric Triglyceride, Tribehenin, PEG-10 Phytosterol, Sorbitan Stearate, Polyhydroxystearic Acid, Alumina, Polysorbate 20, Aluminum Stearate, Xanthan Gum, Caprylyl Glycol, Disodium EDTA, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin
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Alternatives
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, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Dimethicone 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.
Glycerin (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.
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. Remember to stay hydrated!
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.