La Roche-Posay Substiane Eyes
Works for
1 of 1 advertised claim delivered
Anti-aging4 ingredients credited for this claimModerate support
“A complete anti-ageing treatment, Substiane is concentrated in Pro-Xylane TM, a skin substance precursor capable of restoring skin substance, reinforcing skin maintenance and preventing tissue sagging.”
This product contains acetyl dipeptide-1 cetyl ester, serine. These ingredients might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.
Anti-oxidationNot advertised by the brand · 3 ingredients credited for this claimStrong support
This product contains antioxidants (arginine pca) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).
MoisturizingNot advertised by the brand · 20 ingredients credited for this claimStrong support
This product can help improve hydration of the skin with the two types of ingredients.
The first type is called “humectants”:
these ingredients help attract water.
When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from
within deeper layers of the skin. The following ingredients in this product do the job:
arginine pca, glycerin.
This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: beeswax, butyrospermum parkii butter.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: acetyl dipeptide-1 cetyl ester
Can it cause trouble?
Irritancy6 flagged ingredientsLow risk
Comedogenic2 ingredients rated 2 or more on the 0–5 pore-clogging scale2 flagged
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Ingredients
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Water~45–55%
Glycerin~4.3–5.2%
- Irritation risk
- Low
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
More about GlycerinButyrospermum parkii butter~4.2–5.1%
- Irritation risk
- Low
- Comedogenicity
- 3/5
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
More about Butyrospermum parkii butterCyclohexasiloxane~3.1–3.8%
- Irritation risk
- Low
A silicone that serves as an emollient. Helps create a nice non-greasy feels
More about CyclohexasiloxanePrunus armeniaca kernel oil~2.4–2.9%
- Irritation risk
- Medium
An emollient that helps soften the skin
More about Prunus armeniaca kernel oilPentaerythrityl tetraethylhexanoate~2–2.4%
- Irritation risk
- Low
Used to create a nice product consistency while softening the upper layer of the skin
More about Pentaerythrityl tetraethylhexanoateIsohexadecane~1.7–2.1%
- Irritation risk
- Low
Improves the texture of the product and helps soften the skin. Helps oil and water mix together and can be used as a cleansing agent
More about IsohexadecaneZea mays starch~1.4–1.8%
- Irritation risk
- Medium
- Comedogenicity
- 3/5
Used to thicken the product's consistency
More about Zea mays starchSilica~1.5–1.8%
Hydroxypropyl tetrahydropyrantriol~0.95–1.15%
- Irritation risk
- High
A sugar-derived compound that helps to attract water to the upper layer of the skin and might be able to stimulate synthesis of skin's own moisturizing factors, but solid research is lacking. It could be irritating
More about Hydroxypropyl tetrahydropyrantriolCera alba~0.95–1.15%
- Irritation risk
- Medium
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
More about Cera albaBeeswax~0.65–0.95%
- Irritation risk
- Low
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
More about BeeswaxStearic acid~0.65–0.95%
- Irritation risk
- Low
Helps oil and water mix together and works as an emollient
More about Stearic acidDimethicone~0.55–0.8%
- Irritation risk
- Low
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
More about DimethiconePalmitic acid~0.5–0.75%
- Irritation risk
- Low
An emollient that is naturally present in skin and helps soften it
More about Palmitic acidPeg-100 stearate~0.55–0.8%
- Irritation risk
- Low
Helps oil and water mix togehter and creates a nice product texture
More about Peg-100 stearateGlyceryl stearate~0.45–0.7%
- Irritation risk
- Low
An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together
More about Glyceryl stearatePropylene glycol~0.3–0.6%
- Irritation risk
- High
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
More about Propylene glycolPeg-20 stearate~0.35–0.6%
Bis-peg-18 methyl ether dimethyl silane~0.3–0.55%
- Irritation risk
- Low
A type of silicone that helps soften the upper layer of the skin and create a nice product texture
More about Bis-peg-18 methyl ether dimethyl silaneStearyl alcohol~0.3–0.55%
- Irritation risk
- Low
An emollient that helps soften the skin
More about Stearyl alcoholDimethiconol~0.3–0.55%
- Irritation risk
- Low
A silicone that makes products more spreadable and keeps skin smooth. Helps to add gloss to skin and may visually fill in fine lines/wrinkles for short time
More about DimethiconolArginine pca~0.2–0.4%
- Irritation risk
- Low
An amino-acid. Helps attract water to the upper layer of the skin and can help neutralize free radicals in skin
More about Arginine pcaSerine~0.2–0.4%
- Irritation risk
- Low
An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles
More about SerineDisodium edta~0.2–0.35%
Hydrolyzed linseed extract~0.2–0.35%
- Irritation risk
- Low
Helps soften the upper layer of the skin
More about Hydrolyzed linseed extractAcetyl dipeptide-1 cetyl ester~0.15–0.25%
- Irritation risk
- Low
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
More about Acetyl dipeptide-1 cetyl esterPolysorbate 80~0.15–0.3%
Acrylamide/sodium acryloyldimethyltaurate copolymer~0.1–0.2%
- Irritation risk
- Low
Helps water and oil mix together and create gel-like textures
More about Acrylamide/sodium acryloyldimethyltaurate copolymerPentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate~0.1–0.2%
- Irritation risk
- Low
Used to increase stability of product formulations
More about Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamateSodium benzoate~0.1–0.15%
Phenoxyethanol~0.1–0.15%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolIngredient list view
Water, Glycerin, Butyrospermum parkii butter, Cyclohexasiloxane, Prunus armeniaca kernel oil, Pentaerythrityl tetraethylhexanoate, Isohexadecane, Zea mays starch, Silica, Hydroxypropyl tetrahydropyrantriol, Cera alba, Beeswax, Stearic acid, Dimethicone, Palmitic acid, Peg-100 stearate, Glyceryl stearate, Propylene glycol, Peg-20 stearate, Bis-peg-18 methyl ether dimethyl silane, Stearyl alcohol, Dimethiconol, Arginine pca, Serine, Disodium edta, Hydrolyzed linseed extract, Acetyl dipeptide-1 cetyl ester, Polysorbate 80, Acrylamide/sodium acryloyldimethyltaurate copolymer, Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate, Sodium benzoate, Phenoxyethanol
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Product summary
Judging from the ingredient list, "La Roche-Posay - Substiane Eyes" works well for improving skin hydration To work well, any moisturizer needs to include a combination of water-binding and emollient ingredients. La Roche-Posay - Substiane Eyes ticks this box. Humectants in this product (arginine pca, glycerin, bis-peg-18 methyl ether dimethyl silane and propylene glycol) help to increase the water content in the upper layer of the skin. (These ingredients do so by "capturing" water molecules from the outside air or from within the deeper layers of the skin). Prunus armeniaca kernel oil, beeswax, butyrospermum parkii butter, cera alba and dimethicone in this product help decrease the water evoporation from the skin, so that it stays hydrated for longer. These ingredients also soften the skin and take away the feeling of tightness and dryness.
Ingredient callouts
- We like that this moisturizer contains peptides (acetyl dipeptide-1 cetyl ester 0.15% - 0.25%). There are many different kind of Peptides and they are naturally present in our skin. They all are a combination of aminoacids. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The science is still not settled on how effective Peptides are in skincare, but it is very likely that they have a benefit. Peptides might help restore the skin barrier and fight the signs of aging. At the very least, Peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
Irritation risk
This formulation includes some common irritants, including ingredients that do not provide a benefit for the skin. We assess the overall irritancy of this moisturizer to be low. For a detailed overview of all potential irritants: click here
You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.
Price
The product retails for 46.99$ in the United States and from 22.99£ up to 27.40£ in the United Kingdom.
For a detailed price comparison: click here.
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 13 studies and safety reviews.
- 1
- 2Safety Assessment of Pentaerythrityl Tetraesters as Used in Cosmeticsjournals.sagepub.com
- 3
- 4
- 5
- 6
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