La Roche-Posay Redermic C Pure Vitamin C Light

La Roche-Posay Redermic C Pure Vitamin C Light

Efficacy75/100IrritancyMedium

Works for

Moisturizing
Madecassoside, Acetyl dipeptide-1 cetyl ester + 8 more
Works well
What the product description says
“smooths and replumps the skin thanks to fragmented Hyaluronic Acid presents in the formula.”
Source: Cocoon Center

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, hydrolyzed hyaluronic acid.

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: acetyl dipeptide-1 cetyl ester, madecassoside

MadecassosideHeroEffect: HighAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.5–0.75%
Acetyl dipeptide-1 cetyl esterHeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.2–0.4%
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~6.5–8%
Isocetyl stearateKey active· EmollientEffect: HighAn emollient that helps soften the skin~4.5–5.5%
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~3.1–3.8%
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~1.8–2.2%
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~0.65–1%
Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.3–0.55%
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~1.5–1.8%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.3–0.55%
Anti-aging
Madecassoside, Acetyl dipeptide-1 cetyl ester + 1 more
May help
What the product description says
“La Roche-Posay Redermic C Pure Vitamin C Light 40ml is an anti-ageing care formulated to fight against deep wrinkles, the lack of radiance, loss of firmness of normal to combination sensitive skins.”
Source: Cocoon Center

This product contains acetyl dipeptide-1 cetyl ester, madecassoside. 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.

MadecassosideKey activeEffect: MediumAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.5–0.75%
Acetyl dipeptide-1 cetyl esterKey activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.2–0.4%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~2–2.5%
Evens skin tone
Madecassoside, Ascorbic acid
Not delivered
What the product description says
“Vitamin C inhibits the production of Melanin produced at the level of melanocytes of the epidermis to reduce the appearance of dark spots.”
Source: Cocoon Center

This product contains ingredients (madecassoside) that could help reduce hyperpigmentation (for example, post-acne marks or age spots) in theory, but there is not enough evidence that they actually work.

MadecassosideEffect: LowAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.5–0.75%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~2–2.5%
Anti-oxidation
Side benefit · Madecassoside, Ascorbic acid
Works well

This product contains antioxidants (madecassoside) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

MadecassosideKey activeEffect: HighAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.5–0.75%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~2–2.5%

Can it cause trouble?

Irritancy
1 strong irritant: Parfum
Medium risk
We flagged 12 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Ascorbic acidThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of agingHigh~2–2.5%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~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~1.8–2.2%est.
Sucrose tristearateHelps oil and water mix togetherMedium~1.2–1.5%est.
Potassium hydroxideUsed to adjust the pH level of productsMedium~1–1.2%est.
Steareth-10Helps oil and water mix togetherMedium~0.55–0.8%est.
MadecassosideAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulationsMedium~0.5–0.75%est.
Sodium stearoyl glutamateHelps oil and water mix togetherMedium~0.5–0.8%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.3–0.55%est.
Tetrasodium edtaHelps to stabilize the product formulationMedium~0.25–0.45%est.
Acrylates copolymerUsed to stabilize product formulation, help create an even product layer over skin (for example, in sunscreen) and create a thicker product consistencyMedium~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~0.15–0.25%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Steareth-10Helps oil and water mix together3/5~0.55–0.8%est.

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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
Dimethicone~6.5–8%
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
Isocetyl stearate~4.5–5.5%
Key active
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin

More about Isocetyl stearate
Glycerin~3.1–3.8%
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
Mannose~2.4–2.9%
Formula
Irritation risk
Low
More about Mannose
Ascorbic acid~2–2.5%
Under-dosedIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-agingAnti-oxidation

The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging

More about Ascorbic acid
Caprylic/capric triglyceride~1.8–2.2%
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~1.5–1.8%
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
Sucrose tristearate~1.2–1.5%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Sucrose tristearate
Potassium hydroxide~1–1.2%
Irritant · medium
Irritation risk
Medium

Used to adjust the pH level of products

More about Potassium hydroxide
Sodium styrene/ma copolymer~0.7–1.05%
Formula
Polymethylsilsesquioxane~0.65–1%
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
Steareth-10~0.55–0.8%
Comedogenic 3/5Irritant · medium
Irritation risk
Medium
Comedogenicity
3/5
Works for
Cleansing

Helps oil and water mix together

More about Steareth-10
Madecassoside~0.5–0.75%
Hero · MoisturizingIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidationAnti-agingEvens skin tone

An antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations

More about Madecassoside
Sodium stearoyl glutamate~0.5–0.8%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Sodium stearoyl glutamate
Hydrogenated lecithin~0.35–0.65%
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
Hydrolyzed hyaluronic acid~0.3–0.55%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid
Caprylyl glycol~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Tetrasodium edta~0.25–0.45%
Irritant · medium
Irritation risk
Medium

Helps to stabilize the product formulation

More about Tetrasodium edta
Acetyl dipeptide-1 cetyl ester~0.2–0.4%
Hero · Moisturizing
Irritation risk
Low
Works for
Anti-inflammatoryMoisturizingReduces irritationAnti-aging

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 ester
Xanthan gum~0.2–0.35%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Acrylates copolymer~0.15–0.3%
Irritant · medium
Irritation risk
Medium

Used to stabilize product formulation, help create an even product layer over skin (for example, in sunscreen) and create a thicker product consistency

More about Acrylates copolymer
Acrylates/c10-30 alkyl acrylate crosspolymer~0.15–0.25%
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
Phenoxyethanol~0.15–0.25%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Parfum~0.1–0.15%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Ingredient list view

Water, Dimethicone, Isocetyl stearate, Glycerin, Mannose, Ascorbic acid, Caprylic/capric triglyceride, Butylene glycol, Sucrose tristearate, Potassium hydroxide, Sodium styrene/ma copolymer, Polymethylsilsesquioxane, Steareth-10, Madecassoside, Sodium stearoyl glutamate, Hydrogenated lecithin, Hydrolyzed hyaluronic acid, Caprylyl glycol, Tetrasodium edta, Acetyl dipeptide-1 cetyl ester, Xanthan gum, Acrylates copolymer, Acrylates/c10-30 alkyl acrylate crosspolymer, Phenoxyethanol, Parfum

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🇫🇷 Cocoon Center (FR)40 ml
≈ $38.17
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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
La Roche-PosayRedermic C Pure Vitamin C LightYOUR PRODUCTK republiqGlass Skin Finishing GlazeCitrixVitamin C 10 Percent CreamJASONVitamin E 25000 IU Facial Moisturizers
Match—68%66%65%
Price————
Shared key ingredients—4 of 92 of 94 of 9
Key difference—Butyrospermum Parkii ButterCyclomethiconeSunflower Seed Oil
Irritancy Medium Low Low Medium
Drying alcohol————
View product Shop Shop Shop

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Product summary

"La Roche-Posay - Redermic C Pure Vitamin C Light" is effective for: Moisturizing

This product could be helpful for: Anti-aging, but its actives are not the most effective or are not well-studied.

Ingredient callouts

  • This product also contains Vitamin C (Ascorbic Acid). It can be an effective active for anti-aging and evening out the skin tone, but in this product it is used for stabilizing other ingredients in the formulation. In this concentration (2.00% - 2.50%) it cannot have a noticeable benefit for the skin.
  • Peptides (acetyl dipeptide-1 cetyl ester 0.20% - 0.40%). Peptides are a very big group of ingredients. They all consist of a different combination of aminoacids. Our skin produces Peptides naturally. Some of them work as natural antibiotics, 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 theynare helpful. Peptides 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.
  • Actives derived from an extract of the Centella Asiatica plant (also known as Gotu Kola) - madecassoside 0.50% - 0.75% The Centella Asiatica Actives help strengthen and restore the skin barrier, decrease inflammation in skin and neutralize free radicals. They also can help to reduce scarring. The good news is that these actives work even in low concentrations.
  • Humectants (hydrolyzed hyaluronic acid 0.30% - 0.55% and glycerin 3.10% - 3.80%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Price

The product retails from 28.40£ up to 34.99£ 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 14 studies and safety reviews.

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La Roche-Posay Redermic C Pure Vitamin C Light
La Roche-PosayRedermic C Pure Vitamin C Light

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.