La Roche-Posay Hydraphase Intense Light Rehydrating Face Moisturizer Versus La Roche-Posay Uvidea Anthelios Tone-Up Rosy SPF50+
This oil-control moisturizer is formulated around Zinc Gluconate and Hydrolyzed Hyaluronic Acid to balance excess oil and hydrate skin.
This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningHydrogenated Polyisobutene
EmollientDimethicone
Emollient
Glycerin
Humectant
Alcohol Denat.
Antimicrobial
Polyethylene
Abrasive
PEG-20 Stearate
Emulsifying
PEG-100 Stearate
Surfactant
Carbomer
Emulsion StabilisingZinc Gluconate
Skin Conditioning
Glyceryl Stearate
Emollient
Isohexadecane
EmollientSodium Hydroxide
BufferingDisodium EDTA
ChelatingCopper Sulfate
Skin ConditioningHydrolyzed Hyaluronic Acid
Humectant
Xanthan Gum
EmulsifyingPentylene Glycol
Skin Conditioning
Polysorbate 80
Emulsifying
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
Emulsion StabilisingCetyl Alcohol
Emollient
Caprylyl Glycol
Emollient
Parfum
Masking
Water, Hydrogenated Polyisobutene, Dimethicone, Glycerin, Alcohol Denat., Polyethylene, PEG-20 Stearate, PEG-100 Stearate, Carbomer, Zinc Gluconate, Glyceryl Stearate, Isohexadecane, Sodium Hydroxide, Disodium EDTA, Copper Sulfate, Hydrolyzed Hyaluronic Acid, Xanthan Gum, Pentylene Glycol, Polysorbate 80, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Cetyl Alcohol, Caprylyl Glycol, Parfum
Water
Skin ConditioningEthylhexyl Methoxycinnamate
UV Absorber
Squalene
Emollient
Titanium Dioxide
Cosmetic Colorant
Glycerin
Humectant
Drometrizole Trisiloxane
UV Absorber
Terephthalylidene Dicamphor Sulfonic Acid
UV Absorber
Propylene Glycol
Humectant
Alcohol Denat.
Antimicrobial
Triethanolamine
BufferingDipropylene Glycol
HumectantMica
Cosmetic ColorantStearic Acid
Cleansing
Potassium Cetyl Phosphate
EmulsifyingTocopherol
Antioxidant
Nylon-12
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
Emulsion StabilisingAluminum Hydroxide
EmollientCI 77120
Cosmetic ColorantBHT
Antioxidant
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
UV Absorber
Butylene Glycol
Humectant
Butyrospermum Parkii Seedcake Extract
Skin Protecting
Caprylyl Glycol
Emollient
Carbomer
Emulsion StabilisingCetyl Alcohol
Emollient
CI 77491
Cosmetic ColorantCI 77492
Cosmetic ColorantIron Oxides
CI 77891
Cosmetic ColorantDiethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Ethylhexyl Triazone
UV Absorber
Glyceryl Stearate
Emollient
Isohexadecane
EmollientMyristic Acid
Cleansing
Paeonia Suffruticosa Root Extract
Skin ProtectingPalmitic Acid
Emollient
PEG-100 Stearate
Surfactant
Phenoxyethanol
Preservative
Polysorbate 80
Emulsifying
Potassium Sorbate
Preservative
Sodium Chloride
MaskingSodium Cocoyl Sarcosinate
Cleansing
Sorbitan Oleate
Emulsifying
Thermus Thermophillus Ferment
Skin ConditioningTrisodium Ethylenediamine Disuccinate
ChelatingTromethamine
BufferingXanthan Gum
EmulsifyingWater, Ethylhexyl Methoxycinnamate, Squalene, Titanium Dioxide, Glycerin, Drometrizole Trisiloxane, Terephthalylidene Dicamphor Sulfonic Acid, Propylene Glycol, Alcohol Denat., Triethanolamine, Dipropylene Glycol, Mica, Stearic Acid, Potassium Cetyl Phosphate, Tocopherol, Nylon-12, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Aluminum Hydroxide, CI 77120, BHT, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Butylene Glycol, Butyrospermum Parkii Seedcake Extract, Caprylyl Glycol, Carbomer, Cetyl Alcohol, CI 77491, CI 77492, Iron Oxides, CI 77891, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, Glyceryl Stearate, Isohexadecane, Myristic Acid, Paeonia Suffruticosa Root Extract, Palmitic Acid, PEG-100 Stearate, Phenoxyethanol, Polysorbate 80, Potassium Sorbate, Sodium Chloride, Sodium Cocoyl Sarcosinate, Sorbitan Oleate, Thermus Thermophillus Ferment, Trisodium Ethylenediamine Disuccinate, Tromethamine, Xanthan Gum
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
This ingredient is a synthetic polymer used to stabilize formulas and give products a "gel-cream" feel.
When applied, this ingredient mostly stays on the surface of skin. Safety reviews have found these polymers safe in cosmetics when made to proper quality standards. Testing also shows they’re unlikely to cause irritation or sensitization at normal use levels.
Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
The "denat" part just means "denatured"; common denaturants include Denatonium Benzoate, t-butyl alcohol, and Diethyl Phthalate. This step makes the alcohol undrinkable (and lets brand skip taxes related to beverage alcohol).
This ingredient gets a bad rep because it is irritating and drying due to its astringent property. Astringents draw out natural oils in tissue to constrict pores and dry out your skin.
However, alcohol denat. is not all that bad.
Due to its low molecular weight, alcohol denat. tends to evaporate quickly. One study on pig skin found half of applied alcohol evaporated in 10 seconds and less than 3% stayed on skin.
This also helps other ingredients become better absorbed upon application.
Studies are conflicted about whether this ingredient causes skin dehydration. One study from 2005 found adding emollients to propanol-based sanitizer decreased skin dryness and irritation. Another study found irritation only occurs if your skin is already damaged.
Small amounts of alcohol are generally tolerated by oily skin or people who live in humid environments.
The rule of thumb is this ingredient will probably not affect your skin much if it is near the end of an ingredients list.
One thing to note:
People with ALDH2 (aldehyde dehydrogenase 2) deficiency may experience skin irritation from continued alcohol use. About 8% of the world's population have this deficiency.
The Cosmetic Ingredient Review Expert Panel has determined denatured alcohols to be safe for use in concentrations between 0.05% and 12% (depending on which denaturant is used).
Also...
This ingredient has antimicrobial and solvent properties.
The antimicrobial property helps preserve products and increase their shelf life. As a solvent, it helps dissolve other ingredients.
Look for formulas that contain glycerin, hyaluronic acid, or panthenol if you want to offset any drying effect.
This ingredient will trip away your skin's natural oils/lipids that help it lock in moisture. This can worsen dryness, trigger eczema flare-ups, and aggravate rosacea.
Be sure to patch test any product with this ingredient if you have dry or sensitive skin, eczema, or rosacea.
Learn more about Alcohol Denat.Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolCarbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture.
Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%.
It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier.
Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%.
A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions.
Learn more about CarbomerCetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
Its main roles are:
Though it has "alcohol" in the name, it is not related to denatured alcohol or ethyl alcohol.
The FDA allows products labeled "alcohol-free" to have fatty alcohols.
This ingredient may not be fungal acne safe. It is a primary fatty alcohol with a chain length above 12 carbons. A study from 2019 show Malassezia can feed on fatty alcohols in this range, so it may trigger fungal acne in those prone to it.
Learn more about Cetyl AlcoholGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinGlyceryl Stearate is made by reacting glycerin with stearic acid (typically sourced from plant oils like palm or coconut). It's an emulsifier, emollient, and mild occlusive.
Emulsifiers help ingredients like oil and water stay mixed so your formula stays nicely blended and uniform in texture.
This ingredient is typically used in concentrations between 1-10%. Studies have found it to be non-sensitizing, non-phototoxic, and non-photoallergenic.
A close cousin of this ingredient is Glyceryl Stearate SE ("self-emulsifying"). This just has a small amount of sodium or potassium stearate added so it can emulsify without a co-emulsifier.
Since this ingredient is an ester of a C18 fatty acid, it may not be fungal acne safe. The Malassezia yeast can potentially metabolize within the C11-C24 range.
Fun fact: The human body also creates Glyceryl Stearate naturally.
Learn more about Glyceryl StearateIsohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.
Due to its large size, Isohexadecane is not absorbed by the skin. Instead, it sits on top and acts as an emollient. Emollients help keep your skin soft and smooth by trapping moisture within.
Isohexadecane is often used in products designed to help oily skin. It is lightweight and non-greasy while helping to moisturize. When mixed with silicones, it gives a product a silky feel.
Learn more about IsohexadecanePeg-100 Stearate is an emollient and emulsifier. As an emollient, it helps keep skin soft by trapping moisture in. On the other hand, emulsifiers help prevent oil and water from separating in a product.
PEGS are a hydrophilic polyether compound . There are 100 ethylene oxide monomers in Peg-100 Stearate. Peg-100 Stearate is polyethylene glycol ester of stearic acid.
Polysorbate 80 is a synthetic surfactant and emulsifier derived from sorbitol and oleic acid.
It reduces the surface tension between oil and water phases to help them stay mixed and stable in a formulation. In other words, it prevents your formulas from separating into an oily mess.
The CIR Expert Panel has evaluated the scientific data and found this ingredient to be safe, non-irritating, and non-sensitizing at concentrations up to 5% (it's even approved by the FDA as an OTC eye drop ingredient).
Learn more about Polysorbate 80Water. 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. Remember to stay hydrated!
Learn more about WaterXanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan Gum
