La Roche-Posay Rosaliac AR Intense Serum

La Roche-Posay Rosaliac AR Intense Serum

Efficacy50/100IrritancyLow

Works for

Moisturizing
Acetyl dipeptide-1 cetyl ester, Glycerin + 6 more
Works well
What the product description says
“This intense hydrating serum for visible facial redness is enriched with ambophenol, a powerful natural extract, soothing neurosensine, and light reflectors.”
Source: La roche posay US

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, glyceryl acrylate/acrylic acid copolymer.

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: dimethicone, dimethiconol.

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

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~0.05–0.15%
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~4.4–6.6%
Glyceryl acrylate/acrylic acid copolymerKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and provide a longer-lasting hydration. Can create a thicker product consistency~0.6–1.4%
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~0.55–1.3%
DimethiconolKey active· Emollient, OcclusiveEffect: HighA 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~0.3–0.7%
Isostearyl neopentanoate· EmollientEffect: LowUsed to create a nice product texture and helps soften the upper layer of the skin. Could be comedogenic~3.6–5.5%
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~2.6–3.9%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~2–3%
Evens skin tone
No ingredient credited for this claim
Not delivered
What the product description says
“Powered by the brand’s exclusive Thermal Spring Water, a mineral-rich ingredient that instantly soothes irritated and inflamed skin, the formula also uses a blend of Ambophenol and Neurosensine to promote a more even skin tone.”
Source: Lookfantastic

Effective ingredients missing or their concentration is too low

Anti-aging
Side benefit the brand mentions · Acetyl dipeptide-1 cetyl ester
May help
What the product description says
“Anti-contamination, anti-oxidation, anti-dry residue and anti-waste.Key Ingredients AMBOPHENOL-A natural extract of the leaves of Tambourissa Trichophylla, a plant found in Madagascar known to calm and soothe redness.NEUROSENSINE-Helps to reduce skin reactivity and hypersentitivity.”
Source: Lookfantastic Australia

This product contains acetyl dipeptide-1 cetyl ester. There is some human evidence that this ingredient helps reduce and prevent fine lines and wrinkles and improve skin elasticity and firmness, though it is smaller or less consistent than the evidence for the best anti-aging ingredients.

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~0.05–0.15%

Can it cause trouble?

Irritancy
4 flagged ingredients
Low risk
We flag 4 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Isostearyl neopentanoateUsed to create a nice product texture and helps soften the upper layer of the skin. Could be comedogenicMedium~3.6–5.5%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~2–3%est.
Glyceryl acrylate/acrylic acid copolymerHelps attract water to the upper layer of the skin and provide a longer-lasting hydration. Can create a thicker product consistencyMedium~0.6–1.4%est.
Disodium edtaStabilizes the product formulationMedium~0.05–0.15%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
Isostearyl neopentanoateUsed to create a nice product texture and helps soften the upper layer of the skin. Could be comedogenic2/5~3.6–5.5%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~4.4–6.6%
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
Isostearyl neopentanoate~3.6–5.5%
Comedogenic 2/5Irritant · medium
Irritation risk
Medium
Comedogenicity
2/5
Works for
Moisturizing

Used to create a nice product texture and helps soften the upper layer of the skin. Could be comedogenic

More about Isostearyl neopentanoate
Butylene glycol~2.6–3.9%
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
Pentylene glycol~2–3%
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
Polysorbate 20~1.4–2.1%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 20
Tambourissa trichophylla leaf extract~0.95–1.45%
Formula
Glyceryl acrylate/acrylic acid copolymer~0.6–1.4%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps attract water to the upper layer of the skin and provide a longer-lasting hydration. Can create a thicker product consistency

More about Glyceryl acrylate/acrylic acid copolymer
Dimethicone~0.55–1.3%
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
Dimethiconol~0.3–0.7%
Key active
Irritation risk
Low
Works for
Moisturizing

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 Dimethiconol
Ammonium polyacryloyldimethyl taurate~0.1–0.4%
Formula
Irritation risk
Low

Used to create a thicker product consistency

More about Ammonium polyacryloyldimethyl taurate
Disodium edta~0.05–0.15%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Acetyl dipeptide-1 cetyl ester~0.05–0.15%
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
Ingredient list view

Water, Glycerin, Isostearyl neopentanoate, Butylene glycol, Pentylene glycol, Polysorbate 20, Tambourissa trichophylla leaf extract, Glyceryl acrylate/acrylic acid copolymer, Dimethicone, Dimethiconol, Ammonium polyacryloyldimethyl taurate, Disodium edta, Acetyl dipeptide-1 cetyl ester

Compare prices

Retailers ranked by price — lowest first.

La roche posay US
$42.99
Buy
Walgreens1.35 fl oz
$42.99
Buy

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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-PosayRosaliac AR Intense SerumYOUR PRODUCTNo7Laboratories Firming Booster SerumBeauty PieYour free THATriple Hyaluronic Acid& Lipopeptide Serum
Match—59%52%50%
Price$42.99$23.11−$19.88—$58.00+$15.01
Shared key ingredients—4 of 52 of 52 of 5
Key difference—Palmitoyl Tripeptide-1BetaineAnhydroxylitol
Irritancy Low Low Low Low
Drying alcohol————
View product Shop Shop Shop

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Product summary

"La Roche-Posay - Rosaliac AR Intense Serum" is effective for: Anti-inflammatory

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

Ingredient callouts

  • Peptides (acetyl dipeptide-1 cetyl ester 0.05% - 0.15%). 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.
  • Humectants (glyceryl acrylate/acrylic acid copolymer 0.60% - 1.40% and glycerin 4.40% - 6.60%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Price

The product retails from 35.66A$ up to 39.23A$ in Australia, from 17.60£ up to 25.00£ in the United Kingdom and from 21.00$ up to 42.99$ in the United States.

For a detailed price comparison: click here.

La Roche-Posay Rosaliac AR Intense Serum
La Roche-PosayRosaliac AR Intense Serum

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