GUERLAIN The Radiance Concentrate Youth Replenisher - Brightening

GUERLAIN The Radiance Concentrate Youth Replenisher - Brightening

Efficacy91/100IrritancyHigh
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Works for

3 of 3 advertised claims delivered

Moisturizing
20 ingredients credited for this claim
Strong support
What the product description says
“Dark Spots, Fine Lines and Wrinkles, and Dryness Formulation.”
Source: Sephora CA

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: glycerin, polyglycerin-3.

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: caprylic/capric triglyceride, dimethicone.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: hexapeptide-2

Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~2.3–2.8%
DimethiconeKey active· Emollient, OcclusiveEffect: HighA 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~3.9–4.7%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~5–6.2%
Hexapeptide-2HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.05–0.1%
Polyglycerin-3Key active· HumectantEffect: HighHelps to attract water to the upper layer of the skin~1.5–1.8%
PolymethylsilsesquioxaneKey activeEffect: HighA silicone that improves product texture and helps dissolve other ingredients. Can form a non-greasy film on the skin to prevent moisture loss~0.2–0.4%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.15–0.25%
SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~1.4–1.7%
Stearyl glycyrrhetinateKey activeEffect: MediumA fatty acid derived from licorice. Works as an emollient and can help calm down inflammation~0.15–0.25%
AdenosineKey activeEffect: MediumMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.15–0.25%
Cetyl palmitateKey active· EmollientEffect: MediumAn emollient that helps soften the skin and is used to improve product texture and stability~0.15–0.3%
GlucoseKey active· HumectantEffect: MediumHelps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function~0.1–0.2%
Behenyl alcohol· Emollient, OcclusiveEffect: LowNon-drying alcohol that helps water and oil mix together. Also serves as an emollient~0.2–0.35%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~1.7–2.1%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~0.2–0.35%
Batyl alcohol· EmollientEffect: LowNon-drying alcohol. Used to stabilize other ingredients and is an emollient~0.15–0.3%
Dendrobium nobile extractEffect: LowA plant extract has antimicrobal properties and might help reduce inflammation~0.35–0.65%
Lactic acidUnder-dosedEffect: HighAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.3–0.6%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.1–0.2%
LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.2–0.35%
Anti-aging
4 ingredients credited for this claim
Strong support
What the product description says
“Dark Spots, Fine Lines and Wrinkles, and Dryness Formulation.”
Source: Sephora CA

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains adenosine.

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: hexapeptide-2.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

AdenosineKey activeEffect: HighMight help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)~0.15–0.25%
Hexapeptide-2Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.05–0.1%
Lactic acidUnder-dosedEffect: MediumAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.3–0.6%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.1–0.2%
Evens skin tone
2 ingredients credited for this claim
Moderate support
What the product description says
“Dark Spots, Fine Lines and Wrinkles, and Dryness Formulation.”
Source: Sephora CA

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: stearyl glycyrrhetinate.

Stearyl glycyrrhetinateKey activeEffect: MediumA fatty acid derived from licorice. Works as an emollient and can help calm down inflammation~0.15–0.25%
Lactic acidUnder-dosedEffect: HighAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.3–0.6%

Can it cause trouble?

Irritancy
8 strong irritants: Alcohol, Parfum + 6 more — patch-test recommended
High risk
We flagged 27 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~2.9–3.6%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.2–0.4%est.
Coco-glucosideUsed as a cleansing agent (surfactant) in cleansers. Helps water and oil mix together in lotions. Can be irritatingHigh~0.25–0.45%est.
MenthoxypropanediolUsed as a fragrance. Can be irritatingHigh~0.15–0.25%est.
Malva sylvestris extract—High~0.15–0.25%est.
LinaloolA fragrance. Can be irritatingHigh~0.1–0.25%est.
Alpha-isomethyl iononeA fragrance. Potential allergen and can be irritatingHigh~0.1–0.2%est.
GeraniolA fragrance. Can be irritatingHigh~0.1–0.25%est.
CitronellolA fragrance. Can be irritatingHigh~0.1–0.15%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.15%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~2.3–2.8%est.
Dendrobium nobile extractA plant extract has antimicrobal properties and might help reduce inflammationMedium~0.35–0.65%est.
Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~0.3–0.6%est.
Steareth-21Helps oil and water mix togetherMedium~0.45–0.65%est.
Sodium citrateHelps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve productsMedium~0.15–0.3%est.
C12-20 alkyl glucosideHelps water and oil mix togetherMedium~0.15–0.3%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~0.2–0.35%est.
Sodium stearoyl glutamateHelps oil and water mix togetherMedium~0.2–0.35%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.15–0.3%est.
Acrylates/c10-30 alkyl acrylate crosspolymerMaintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix togetherMedium~0.15–0.3%est.
Stearyl glycyrrhetinateA fatty acid derived from licorice. Works as an emollient and can help calm down inflammationMedium~0.15–0.25%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.25%est.
Sodium metabisulfiteA preservativeMedium~0.1–0.2%est.
Potassium sorbateA preservativeMedium~0.15–0.25%est.
Tropaeolum majus extract—Medium~0.1–0.2%est.
EthylhexylglycerinA preservativeMedium~0.1–0.15%est.
BhtA preservativeMedium~0.1–0.2%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~5–6.2%
Key active
Irritation risk
Low
Works for
Moisturizing

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 Glycerin
Dimethicone~3.9–4.7%
Key active
Irritation risk
Low
Works for
MoisturizingMattifying

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 Dimethicone
Alcohol~2.9–3.6%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
Caprylic/capric triglyceride~2.3–2.8%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride
Butylene glycol~1.7–2.1%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Polyglycerin-3~1.5–1.8%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to attract water to the upper layer of the skin

More about Polyglycerin-3
Squalane~1.4–1.7%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Silica~1.3–1.5%
Formula
Irritation risk
Low

Used to absorb oil and can temporarily mattify skin

More about Silica
C14-22 alcohols~0.7–1.05%
Formula
Irritation risk
Low

A non-drying alcohol that helps stabilize product formulations

More about C14-22 alcohols
Gastrodia elata root extract~0.5–0.75%
Formula
Phalaenopsis amabilis extract~0.45–0.65%
Formula
Dendrobium nobile extract~0.35–0.65%
Irritant · medium
Irritation risk
Medium
Works for
Anti-inflammatoryMoisturizing

A plant extract has antimicrobal properties and might help reduce inflammation

More about Dendrobium nobile extract
Lactic acid~0.3–0.6%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
ExfoliationEvens skin toneMoisturizingAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid
Steareth-21~0.45–0.65%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Steareth-21
Synthetic fluorphlogopite~0.3–0.55%
Formula
Irritation risk
Low

A mineral that is used as an optical filter (makes the skin looks nicer through light reflection) and to improve the texture of cosmetic products

More about Synthetic fluorphlogopite
Phenoxyethanol~0.3–0.55%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Decyloxazolidinone~0.25–0.5%
Formula
Irritation risk
Low
Works for
Cleansing
More about Decyloxazolidinone
Parfum~0.2–0.4%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Polymethylsilsesquioxane~0.2–0.4%
Key active
Irritation risk
Low
Works for
Moisturizing

A silicone that improves product texture and helps dissolve other ingredients. Can form a non-greasy film on the skin to prevent moisture loss

More about Polymethylsilsesquioxane
Coco-glucoside~0.25–0.45%
Irritant · high
Irritation risk
High
Works for
Cleansing

Used as a cleansing agent (surfactant) in cleansers. Helps water and oil mix together in lotions. Can be irritating

More about Coco-glucoside
Sodium citrate~0.15–0.3%
Irritant · medium
Irritation risk
Medium

Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products

More about Sodium citrate
Sodium hydroxide~0.15–0.25%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
C12-20 alkyl glucoside~0.15–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together

More about C12-20 alkyl glucoside
Coconut alcohol~0.2–0.35%
Formula
Irritation risk
Low
Works for
Cleansing
More about Coconut alcohol
Pentylene glycol~0.2–0.35%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol
Sodium stearoyl glutamate~0.2–0.35%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Sodium stearoyl glutamate
Ci 77891~0.15–0.25%
Formula
Irritation risk
Low
More about Ci 77891
Titanium dioxide~0.2–0.4%
Formula
Irritation risk
Low
Works for
Sun protection

Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin

More about Titanium dioxide
Behenyl alcohol~0.2–0.35%
Formula
Irritation risk
Low
Works for
Moisturizing

Non-drying alcohol that helps water and oil mix together. Also serves as an emollient

More about Behenyl alcohol
Batyl alcohol~0.15–0.3%
Formula
Irritation risk
Low
Works for
MoisturizingAntibacterial

Non-drying alcohol. Used to stabilize other ingredients and is an emollient

More about Batyl alcohol
Tocopheryl acetate~0.15–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
Xanthan gum~0.15–0.3%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Acrylates/c10-30 alkyl acrylate crosspolymer~0.15–0.3%
Irritant · medium
Irritation risk
Medium

Maintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix together

More about Acrylates/c10-30 alkyl acrylate crosspolymer
Cetyl palmitate~0.15–0.3%
Key active
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin and is used to improve product texture and stability

More about Cetyl palmitate
Menthoxypropanediol~0.15–0.25%
Irritant · high
Irritation risk
High

Used as a fragrance. Can be irritating

More about Menthoxypropanediol
Sodium hyaluronate~0.15–0.25%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Lecithin~0.2–0.35%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

More about Lecithin
Stearyl glycyrrhetinate~0.15–0.25%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingEvens skin toneReduces rednessAnti-inflammatory

A fatty acid derived from licorice. Works as an emollient and can help calm down inflammation

More about Stearyl glycyrrhetinate
Polysorbate 80~0.15–0.3%
Formula
Irritation risk
Low
Works for
Cleansing

Helps water and oil mix together

More about Polysorbate 80
Sorbitan stearate~0.15–0.3%
Formula
Irritation risk
Low
Works for
Cleansing

Helps water and oil mix together

More about Sorbitan stearate
Citric acid~0.15–0.25%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Malva sylvestris extract~0.15–0.25%
Irritant · high
Adenosine~0.15–0.25%
Key active
Irritation risk
Low
Works for
Anti-agingMoisturizingAnti-oxidation

Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)

More about Adenosine
Linalool~0.1–0.25%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Helianthus annuus seed extract~0.15–0.25%
Formula
Alpha-isomethyl ionone~0.1–0.2%
Irritant · high
Irritation risk
High

A fragrance. Potential allergen and can be irritating

More about Alpha-isomethyl ionone
Geraniol~0.1–0.25%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Geraniol
Sodium metabisulfite~0.1–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about Sodium metabisulfite
Sodium benzoate~0.15–0.25%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Tin oxide~0.25–0.4%
Formula
Irritation risk
Low

A colorant that can add a pearl-like appearance to the formulation

More about Tin oxide
Potassium sorbate~0.15–0.25%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Tropaeolum majus extract~0.1–0.2%
Irritant · medium
Citronellol~0.1–0.15%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Citronellol
Hydrogenated lecithin~0.15–0.25%
Formula
Irritation risk
Low
Works for
Cleansing

Helps to retain moisture by creating a protective barrier on the skin. Rich in fatty acids. Improves product texture and helps with the penetration of other ingredients.

More about Hydrogenated lecithin
Limonene~0.1–0.15%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Ethylhexylglycerin~0.1–0.15%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Diamond powder~0.15–0.3%
Formula
Irritation risk
Low

Does not have known skin benefits. Might help create an optical illusion of smoother skin

More about Diamond powder
Tocopherol~0.1–0.2%
Formula
Irritation risk
Low
Works for
Anti-oxidationMoisturizingAnti-inflammatoryAnti-aging

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Glucose~0.1–0.2%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function

More about Glucose
Bht~0.1–0.2%
Irritant · medium
Irritation risk
Medium

A preservative

More about Bht
Palmitoyl tetrapeptide-10~0.05–0.15%
Formula
Hexapeptide-2~0.05–0.1%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Hexapeptide-2
Ingredient list view

Water, Glycerin, Dimethicone, Alcohol, Caprylic/capric triglyceride, Butylene glycol, Polyglycerin-3, Squalane, Silica, C14-22 alcohols, Gastrodia elata root extract, Phalaenopsis amabilis extract, Dendrobium nobile extract, Lactic acid, Steareth-21, Synthetic fluorphlogopite, Phenoxyethanol, Decyloxazolidinone, Parfum, Polymethylsilsesquioxane, Coco-glucoside, Sodium citrate, Sodium hydroxide, C12-20 alkyl glucoside, Coconut alcohol, Pentylene glycol, Sodium stearoyl glutamate, Ci 77891, Titanium dioxide, Behenyl alcohol, Batyl alcohol, Tocopheryl acetate, Xanthan gum, Acrylates/c10-30 alkyl acrylate crosspolymer, Cetyl palmitate, Menthoxypropanediol, Sodium hyaluronate, Lecithin, Stearyl glycyrrhetinate, Polysorbate 80, Sorbitan stearate, Citric acid, Malva sylvestris extract, Adenosine, Linalool, Helianthus annuus seed extract, Alpha-isomethyl ionone, Geraniol, Sodium metabisulfite, Sodium benzoate, Tin oxide, Potassium sorbate, Tropaeolum majus extract, Citronellol, Hydrogenated lecithin, Limonene, Ethylhexylglycerin, Diamond powder, Tocopherol, Glucose, Bht, Palmitoyl tetrapeptide-10, Hexapeptide-2

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Product summary

Based on the ingredients included, "GUERLAIN - The Radiance Concentrate Youth Replenisher - Brightening" works well for moisturizing the skin. As we expect from a proper moisturizer, the formula includes a combo of effective humectants and emollients. These are the two different types of ingredients that are essential for improving the skin hydration and supporting a healthy skin barrier. Glycerin, polyglycerin-3, sodium hyaluronate, glucose and butylene glycol in this product (humectants) attract water molecules to the upper layer of the skin (the water comes from the outside air or from the deeper layers of the skin if the air is dry). Emollients in this formulation (caprylic/capric triglyceride, dimethicone, squalane, cetyl palmitate and batyl alcohol) help to reduce the moisture loss from the skin. They also soften the skin surface and relieve the feeling of dryness and tightness.

Ingredient callouts

  • This moistruizer also contains peptides (hexapeptide-2 0.05% - 0.10%). Peptides is a very big group of ingredients. They all consist of a different combination of amino-acids. Our skin produces peptides naturally. Some of them work as natural anti-biotics, promote wound-healing and production of collagen. The scientists are still studying how effective the topical application of peptides is, but it is very likely that peptides in skincare are helpful. They might be able to support skin barrier restoration and even have an anti-aging benefit. At the very least, they certainly help attract water to the skin and support the hydration in this way.
  • Adenosine 0.15% - 0.25% in this product adds an anti-aging property to it. Adenosine is a chemical present inside our skin cells. A clinical trial confirmed that topical application of adenosine in a low concentration reduce dynamic wrinkles (these are the wrinkles that appear with age in a places where we our mimic is the most active, for example, in the corners of the eyes or on the forehead).

Irritation risk

This moisturizer contains a bunch of common irritants, including ingredients that do not provide any known benefit for the skin. It might not be the best choice if your skin is sensitive. We assess the overall irritancy of this moisturizer to be high. 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 640.00CA$ in Canada.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 19 studies and safety reviews.

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GUERLAIN The Radiance Concentrate Youth Replenisher - Brightening
GUERLAINThe Radiance Concentrate Youth Replenisher - Brightening

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