Neutrogena Cellular Boost Anti-Ageing Day Cream SPF 20 Versus La Roche-Posay Rosaliac UV Legere
Overview
What they are
These products are both day moisturizers. They have a total of 12 ingredients in common
Cool Features
They both contain SPF and Vitamin C
Suited For
They're both likely to be good for dry skin, brightening skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, oils or sulfates
What's Inside
They both contain silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Neutrogena Cellular Boost Anti-Ageing Day Cream SPF 20 35 ingredients
La Roche-Posay Rosaliac UV Legere 30 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Neutrogena Cellular Boost Anti-Ageing Day Cream SPF 20 35 ingredients
La Roche-Posay Rosaliac UV Legere 30 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPropylene Glycol
Humectant
Glycerin
Humectant
Homosalate
Skin Conditioning
Isononyl Isononanoate
EmollientEthylhexyl Salicylate
UV Absorber
Dimethicone
Emollient
Steareth-2
EmulsifyingAscorbyl Glucoside
Antioxidant
Butyl Methoxydibenzoylmethane
UV Absorber
Ethylhexyl Palmitate
Emollient
Octocrylene
UV Absorber
Styrene/Acrylates Copolymer
Butyrospermum Parkii Butter
Skin Conditioning
Methyl Methacrylate Crosspolymer
Behenyl Alcohol
Emollient
Hexylresorcinol
Antimicrobial
Steareth-21
CleansingCaprylyl Glycol
EmollientAcrylates Copolymer
PEG-8 Laurate
Emulsifying
Sodium Dodecylbenzenesulfonate
CleansingLinseed Acid
CleansingMica
Cosmetic Colorant
Dimethicone Crosspolymer
Emulsion Stabilising
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Sclerotium Gum
Emulsion StabilisingDisodium EDTA
Sodium Hydroxide
BufferingEthylparaben
Preservative
Methylparaben
Preservative
Propylparaben
Preservative
Phenoxyethanol
Preservative
Parfum
Masking
CI 77891
Cosmetic ColorantWater, Propylene Glycol, Glycerin, Homosalate, Isononyl Isononanoate, Ethylhexyl Salicylate, Dimethicone, Steareth-2, Ascorbyl Glucoside, Butyl Methoxydibenzoylmethane, Ethylhexyl Palmitate, Octocrylene, Styrene/Acrylates Copolymer, Butyrospermum Parkii Butter, Methyl Methacrylate Crosspolymer, Behenyl Alcohol, Hexylresorcinol, Steareth-21, Caprylyl Glycol, Acrylates Copolymer, PEG-8 Laurate, Sodium Dodecylbenzenesulfonate, Linseed Acid, Mica, Dimethicone Crosspolymer, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Sclerotium Gum, Disodium EDTA, Sodium Hydroxide, Ethylparaben, Methylparaben, Propylparaben, Phenoxyethanol, Parfum, CI 77891
Water
Skin ConditioningIsononyl Isononanoate
EmollientGlycerin
Humectant
Octocrylene
UV Absorber
Niacinamide
Smoothing
Ethylhexyl Salicylate
UV Absorber
Diisopropyl Sebacate
EmollientDimethicone
Emollient
Sucrose Tristearate
Emollient
Butyl Methoxydibenzoylmethane
UV Absorber
Cyclohexasiloxane
Emollient
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingMethylsilanol/Silicate Crosspolymer
Skin ConditioningDrometrizole Trisiloxane
UV Absorber
Ascorbyl Glucoside
Antioxidant
Polysorbate 61
Emulsifying
PEG-12 Dimethicone
Skin Conditioning
Dimethiconol
Emollient
Caffeine
Skin Conditioning
Sodium Citrate
BufferingSodium Hydroxide
BufferingSodium Stearoyl Glutamate
CleansingDisodium EDTA
Citric Acid
Buffering
Xanthan Gum
EmulsifyingSodium Benzoate
Masking
Phenoxyethanol
Preservative
Caprylyl Glycol
EmollientCI 19140
Cosmetic ColorantCI 42090
Cosmetic ColorantWater, Isononyl Isononanoate, Glycerin, Octocrylene, Niacinamide, Ethylhexyl Salicylate, Diisopropyl Sebacate, Dimethicone, Sucrose Tristearate, Butyl Methoxydibenzoylmethane, Cyclohexasiloxane, Ammonium Polyacryloyldimethyl Taurate, Methylsilanol/Silicate Crosspolymer, Drometrizole Trisiloxane, Ascorbyl Glucoside, Polysorbate 61, PEG-12 Dimethicone, Dimethiconol, Caffeine, Sodium Citrate, Sodium Hydroxide, Sodium Stearoyl Glutamate, Disodium EDTA, Citric Acid, Xanthan Gum, Sodium Benzoate, Phenoxyethanol, Caprylyl Glycol, CI 19140, CI 42090
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.
When applied to skin, Ascorbyl Glucoside turns into Ascorbic Acid.
Ascorbyl Glucoside is an antioxidant. Antioxidants help fight free-radicals, or molecules that may damage skin cells.
It can help to reduce redness, improve skin texture, reduce the effects of aging, reduce the visibility of dark spots, and brighten skin.
Read more about other types of Vitamin C:
Learn more about Ascorbyl GlucosideAlso known as Avobenzone, this ingredient is a chemical sunscreen filter that provides protection in the UV-A range.
Avobenzone is globally approved and is the most commonly used UV-A filter in the world.
Studies have found that avobenzone becomes ineffective when exposed to UV light (it is not photostable; meaning that it breaks down in sunlight). Because of this, formulations that include avobenzone will usually contain stabilizers such as octocrylene.
However, some modern formulations (looking at you, EU!) are able to stabilize avobenzone by coating the molecules.
Avobenzone does not protect against the UV-B range, so it's important to check that the sunscreen you're using contains other UV filters that do!
The highest concentration of avobenzone permitted is 3% in the US, and 5% in the EU.
Learn more about Butyl MethoxydibenzoylmethaneCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolDimethicone is a type of synthetic silicone created from natural materials such as quartz.
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.
Learn more about DimethiconeDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAEthylhexyl Salicylate is an organic compound used to block UV rays. It primarily absorbs UVB rays but offers a small amount of UVA protection as well.
Commonly found in sunscreens, Ethylhexyl Salicylate is created from salicylic acid and 2-ethylhexanol. You might know salicylic acid as the effective acne fighter ingredient and BHA.
The ethylhexanol in this ingredient is a fatty alcohol and helps hydrate your skin, similar to oils. It is an emollient, which means it traps moisture into the skin.
According to manufacturers, Ethylhexyl Salicylate absorbs UV wavelength of 295-315 nm, with a peak absorption at 307-310 nm. UVA rays are linked to long term skin damage, such as hyperpigmentation. UVB rays emit more energy and are capable of damaging our DNA. UVB rays cause sunburn.
Learn more about Ethylhexyl SalicylateGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinIsononyl Isononanoate is a synthetic skin-conditioner and texture enhancer. It is created from nonanoic acid, a fatty acid found in cocoa and lavender oil.
As an emollient, Isononyl Isononanoate helps keep your skin soft and smooth. This is because emollients create a barrier on the skin to trap moisture in.
Isononyl Isononanoate helps give products a velvet feel and improves spreadability.
Learn more about Isononyl IsononanoateOctocrylene protects skin from sun damage. It absorbs UV-B with peak absorption of 304 nm. It is a common sunscreen ingredient and often paired with avobenzone, a UVA filter. This is because octocrylene stabilizes other sunscreen ingredients by protecting them from degradation when exposed to sunlight. Octocrylene is a photostable ingredient and loses about 10% of SPF in 95 minutes.
Octocrylene also acts as an emollient, meaning it helps skin retain moisture and softens skin. It is oil-soluble and hydrophobic, enhancing water-resistant properties in a product.
Those who are using ketoprofen, a topical anti-inflammatory drug, may experience an allergic reaction when using octocrylene. It is best to speak with a healthcare professional about using sunscreens with octocrylene.
The EU allows a maximum of these concentrations:
Learn more about OctocrylenePhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideWater. 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. Stay hydrated!
Learn more about WaterIngredient Ratings
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