Versus

Avène SunsiStick KA SPF 50+ Versus Sesderma Azelac RU Luminous Fluid SPF 50

Sunscreen
Sunscreen
French Brand France
Spanish Brand Spain

Overview

What they are

These products are both sunscreens. They have a total of 8 ingredients in common

Cool Features

They both contain exfoliants and SPF

Suited For

They're both likely to be good for dry skin

Free From

They both do not contain any common allergens, parabens or sulfates

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

Click any item below to learn more and see relevant ingredients

What's inside

What's inside

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Azelac RU Luminous Fluid SPF 50

Water

Skin Conditioning

Ethylhexyl Methoxycinnamate

UV Absorber
0 / 0 Chemical UV Filter IconMay cause irritation IconNon-Reef-Safe Icon

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Propylene Glycol

Humectant
0 / 0 Helps hydrate Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Ethylhexyl Triazone

UV Absorber
Chemical UV Filter Icon

Ethylhexyl Salicylate

UV Absorber
0 / 0 Chemical UV Filter IconNon-Reef-Safe IconMay worsen Rosacea Icon

Cyclopentasiloxane

Emollient
Silicon Icon

Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine

Skin Conditioning
Chemical UV Filter Icon

Butyl Methoxydibenzoylmethane

UV Absorber
Chemical UV Filter IconMay cause irritation IconMay worsen Rosacea Icon

Polymethyl Methacrylate

Bis-PEG-18 Methyl Ether Dimethyl Silane

Emollient

Bellis Perennis Flower Extract

Skin Conditioning

Mica

Cosmetic Colorant
May worsen Eczema Icon

Isostearyl Alcohol

Emollient
Fatty Alcohol Icon

Titanium Dioxide

Cosmetic Colorant
0 / 0 Mineral UV Filter IconNon-Reef-Safe Icon

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Emulsion Stabilising

Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-2

Skin Conditioning
Peptide Icon

3-O-Ethyl Ascorbic Acid

Skin Conditioning
Vitamin C IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores Icon

4-Butylresorcinol

Antioxidant
Antioxidant IconGood for Dark Spots Icon

Alcohol

Antimicrobial
Alcohol IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon

Alcohol Denat.

Antimicrobial
Alcohol IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon

Ascorbyl Palmitate

Antioxidant
2 / 0 Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin IconNot safe for Fungal Acne Icon

Azelaic Acid

Buffering
Good for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne Icon

BHT

Antioxidant
Antioxidant Icon

Butylene Glycol Cocoate

Emulsifying
Can worsen Dry Skin IconNot safe for Fungal Acne Icon

Caprylic/Capric Triglyceride

Masking
Helps hydrate Dry Skin Icon

Caprylyl Glycol

Emollient

Carbomer

Emulsion Stabilising
1 / 0

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Decyl Glucoside

Cleansing

Diacetyl Boldine

Skin Conditioning

Dimethicone

Emollient
1 / 0 Silicon Icon

Dipotassium Phosphate

Buffering

Disodium EDTA

Disodium Phosphate

Buffering

Ethylcellulose

Ethylhexylglycerin

Skin Conditioning

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Glyceryl Oleate

Emollient
Fragrance IconNot safe for Fungal Acne Icon

Glyceryl Stearate

Emollient
1 / 0 Not safe for Fungal Acne Icon

Hexylene Glycol

Emulsifying
0-2 / 0-1

Lecithin

Emollient
Helps hydrate Dry Skin Icon

Melissa Officinalis Leaf Extract

Skin Conditioning

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Phenethyl Alcohol

Masking

Phenoxyethanol

Preservative
Preservative Icon

Polysilicone-11

Polysorbate 20

Emulsifying
0 / 0 Not safe for Fungal Acne Icon

Potassium Phosphate

Buffering

Silica

Abrasive
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon

Sodium Chloride

Masking
Can worsen Dry Skin IconBad for Acne Prone Skin IconMay worsen Rosacea Icon

Sodium Cholate

Skin Conditioning

Sodium Hydroxide

Buffering

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Tranexamic Acid

Astringent
Helps reduce irritation IconGood for Dark Spots IconGood for Scar Healing Icon

Undecylenoyl Phenylalanine

Skin Conditioning

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, UV Absorber, UV Filter

You might know this ingredient as Tinosorb S or Bemotrizinol. It is a UV filter that covers both UVA and UVB rays.

This ingredient has two peak UV absorption peaks ( 310 and 340 nm) and is able to absorb both UV-A and UV-B rays. This ingredient works by preventing UV rays from reaching and damaging your skin.

On top of that - it is highly photostable and helps prevent the photodegration of other sunscreen ingredients such as avobenzone.

Tinosorb S is allowed in the EU, Australia, and Asia. It is close to being approved by the FDA and we'll hopefully get this ingredient in the U.S. by late 2025.

Fun fact: Tinosorb S is the most effective UV absorber at maximum concentration (measured by SPF) permitted in the EU.

This ingredient is oil-soluble, so your oil-cleansers will take this right off at night.

Learn more about Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
UV Absorber, UV Filter

Also 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 Methoxydibenzoylmethane
Humectant, Masking, Skin Conditioning

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

Learn more about Butylene Glycol
Emulsifying, Emulsion Stabilising

Butylene Glycol Cocoate isn't fungal acne safe. It can be bad for dry skin.

Masking, Skin Conditioning

This ingredient is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

It helps thicken a product's formula and makes it easier to spread by dissolving clumping compounds.

Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid.

While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.

Learn more about Caprylic/Capric Triglyceride
Emollient, Humectant, Skin Conditioning

Caprylyl 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 Glycol
UV Absorber, UV Filter

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.

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 Salicylate
Skin Conditioning, Solvent

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 Water

When to use

2 Routines
100% use in am
0% use in pm
100% use every day

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