SOS Serum SOS SPF 50 Versus La Roche-Posay Anthelios Ultra Fluid Face Lotion SPF 50+
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
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
Notable Ingredients
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Benefits
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Concerns
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Notable Ingredients
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Concerns
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Ingredients Side-by-side
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.
2 Concerns
Ethylhexyl 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.
This ingredient is more commonly known as Ensulizole, a chemical sunscreen ingredient.
2 Concerns
Also known as Avobenzone, this ingredient is a chemical sunscreen filter that provides protection in the UV-A range.
Amiloxate is a chemical sunscreen absorber. It mainly protects against UV-B rays (290-320 nm) but offers a bit of UV-A protection (320-340 nm).
Non-Reef-Safe
Titanium dioxide is known for its UVA and UVB protection properties. It is non-comedogenic and non-irritating. Titanium Dioxide is a physical sunscreen. Physical sunscreens reflect light and prevent it from reaching your skin.
Helps fight Acne Non-Reef-Safe
Zinc Oxide is a mineral broad-spectrum UV filter; it is the broadest UVA and UVB reflector approved by the FDA. While it is most commonly man-made for cosmetics, it can naturally occur in zincite, a rare mineral.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
4 Benefits May cause irritation
Hyaluronic acid is naturally found in healthy skin. It is a humectant, meaning it draws moisture to your skin.
Antioxidant Helps brighten skin
Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.
Fragrance Preservative 6 Concerns
Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.
Dehydroacetic Acid is fungicide and bactericide. It is used as a preservative in cosmetics. Preservatives help elongate the shelf life of a product.
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
Silicon
Drometrizole Trisiloxane is a UV filter that provides both UV-A (344 nm) and UV-B (303 nm) protection.
You might know this ingredient as Tinosorb S or Bemotrizinol. It is a UV filter that covers both UVA and UVB rays.
2 Concerns
Ethylhexyl 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.
2 Concerns
Octocrylene 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.
2 Concerns
Also known as Avobenzone, this ingredient is a chemical sunscreen filter that provides protection in the UV-A range.
Non-Reef-Safe
Homosalate is a chemical sunscreen filter that provides protection in the UV-B range (280nm - 320 nm), with a peak protection at 306 nm. It is internationally approved for use in sunscreens.
This ingredient is more commonly known as Ensulizole, a chemical sunscreen ingredient.
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.
5 Concerns
Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
2 Concerns
Silica is a mineral naturally found in our skin. It helps to thicken and smooth the texture of a product. It also acts as an agent for other ingredients by increasing the absorption of other ingredients into the skin.
Isopropyl Myristate is an emollient, thickening agent, and texture enhancer. It is created from isopropyl alcohol and myristic acid.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
We don't have a description for C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
Antioxidant 4 Benefits May cause irritation
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Triethanolamine is an emulsifier and pH adjuster. It is created using ethylene oxide and ammonia. This gives Triethanolamine a nitrogen core and a similar scent to ammonia.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken and improve the texture of products.
Drometrizole 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
La Roche-Posay Anthelios Ultra Fluid Face Lotion SPF 50+ 23 ingredients
Chaddy
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...
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 absorbed to apply it. Just overall a disappointment.
