SOS Serum SOS SPF 50 Versus La Roche-Posay Anthelios Ultra Fluid Face Lotion SPF 50+
Updated on April 01, 2025
Overview
What they are
These products are both sunscreens. They have a total of 5 ingredients in common
Cool Features
They both contain SPF and Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin and scar healing
Free From
They both do not contain any oils, parabens or sulfates
What's Inside
They both contain harsh alcohols and 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
SOS Serum SOS SPF 50 16 ingredients
La Roche-Posay Anthelios Ultra Fluid Face Lotion SPF 50+ 23 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
SOS Serum SOS SPF 50 16 ingredients
La Roche-Posay Anthelios Ultra Fluid Face Lotion SPF 50+ 23 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningEthylhexyl Salicylate
UV Absorber
Phenylbenzimidazole Sulfonic Acid
UV Absorber
Butyl Methoxydibenzoylmethane
UV Absorber
Isoamyl P-Methoxycinnamate
UV Absorber
Titanium Dioxide
Cosmetic Colorant
Zinc Oxide
Cosmetic Colorant
Dimethicone
Emollient
Glycerin
Humectant
Sodium Polyacrylate
AbsorbentGlycine Max Callus Culture
Antioxidant
Citric Acid
Buffering
Hyaluronic Acid
Humectant
Tocopheryl Acetate
Antioxidant
Benzyl Alcohol
Perfuming
Dehydroacetic Acid
Preservative
Water, Ethylhexyl Salicylate, Phenylbenzimidazole Sulfonic Acid, Butyl Methoxydibenzoylmethane, Isoamyl P-Methoxycinnamate, Titanium Dioxide, Zinc Oxide, Dimethicone, Glycerin, Sodium Polyacrylate, Glycine Max Callus Culture, Citric Acid, Hyaluronic Acid, Tocopheryl Acetate, Benzyl Alcohol, Dehydroacetic Acid
Drometrizole Trisiloxane 7%
UV Absorber
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine 5%
Skin Conditioning
Ethylhexyl Salicylate 5%
UV Absorber
Octocrylene 5%
UV Absorber
Butyl Methoxydibenzoylmethane 3%
UV Absorber
Homosalate 2%
Skin Conditioning
Phenylbenzimidazole Sulfonic Acid 0.5%
UV Absorber
Water
Skin ConditioningAlcohol Denat.
Antimicrobial
Silica
Abrasive
Isopropyl Myristate
Emollient
Glycerin
Humectant
Diisopropyl Sebacate
EmollientC12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer
StabilisingPropanediol
SolventPerlite
AbsorbentTocopherol
Antioxidant
Triethanolamine
BufferingCaprylyl Glycol
EmollientTrisodium Ethylenediamine Disuccinate
Disodium EDTA
Hydroxyethylcellulose
Emulsion StabilisingAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingDrometrizole Trisiloxane 7%, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine 5%, Ethylhexyl Salicylate 5%, Octocrylene 5%, Butyl Methoxydibenzoylmethane 3%, Homosalate 2%, Phenylbenzimidazole Sulfonic Acid 0.5%, Water, Alcohol Denat., Silica, Isopropyl Myristate, Glycerin, Diisopropyl Sebacate, C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer, Propanediol, Perlite, Tocopherol, Triethanolamine, Caprylyl Glycol, Trisodium Ethylenediamine Disuccinate, Disodium EDTA, Hydroxyethylcellulose, Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. 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 WaterEthylhexyl 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 SalicylateThis ingredient is more commonly known as Ensulizole, a chemical sunscreen ingredient.
Ensulizole mainly protects UV-B (290-340 nm) but offers a little UV-A (320-400 nm) protection. It is often paired with less photo-stable sunscreen ingredients due to its photo-stability.
Due to it being water-soluble, Ensulizole helps give sunscreens a light and non-oily texture.
Ensulizole is approved worldwide:
Learn more about Phenylbenzimidazole Sulfonic AcidAlso 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 MethoxydibenzoylmethaneGlycerin 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 GlycerinIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
SOS Serum SOS SPF 50 16 ingredients
La Roche-Posay Anthelios Ultra Fluid Face Lotion SPF 50+ 23 ingredients
Reviews
Here's what our community thinks
SOS Serum SOS SPF 50 16 ingredients
Quite a moisturising SPF and works well as a makeup base. Hasn't pilled for me at all. The texture is similar to the Bondi Sands in the white tube but thicker. If your skin is prone to clogging I would be a little hesitant - although I can't say this has actively caused breakouts, it feels like it could contribute towards pore clogging you don't thoroughly clean/exfoliate your skin.
after trying so many spfs my long search for the perfect sunscreen is seemingly over, i can't stress enough how much i like this product.
it has a mousse-like texture that feels weightless when applied and it uses a mixture of chemical and physical spf filters, combined with hyaluronic acid for a bit of hydration. it has a lovely satin finish and doesnt pill when layered on top of other Show more
La Roche-Posay Anthelios Ultra Fluid Face Lotion SPF 50+ 23 ingredients
Feels great
Feels great and leaves no white cast, lasts several weeks as well.
Makes my face feel very greasy!
I'm really not a fan of this sunscreen because it makes my skin feel very oily and greasy. I have normal to dry skin and I rarely feel oily, but with this I have to apply setting powder and even then I usually end up feeling oily for hours. I also find that the sunscreen doesn't go on very smooth and sometimes pills even when I wait for other products to be totally Show more
