Avène SunsiStick KA SPF 50+ Versus Sesderma Azelac RU Luminous Fluid SPF 50
Overview
What they are
These products are both sunscreens. They have a total of 7 ingredients in common
Cool Features
They both contain exfoliants and SPF
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
Avène SunsiStick KA SPF 50+ 25 ingredients
Sesderma Azelac RU Luminous Fluid SPF 50 56 ingredients
At a glance
Click on any of the items below to learn more
Avène SunsiStick KA SPF 50+ 25 ingredients
Sesderma Azelac RU Luminous Fluid SPF 50 56 ingredients
Notable Ingredients
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Concerns
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Notable Ingredients
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Benefits
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Concerns
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Ingredients Side-by-side
Octyldodecanol is a fatty alcohol. It is primarily used to enhance the texture of products.
Polyethylene is a synthetic ingredient that helps the skin retain moisture. It is a polymer.
Butylene Glycol Cocoate isn't fungal acne safe.
Hydrogenated Microcrystalline Wax isn't fungal acne safe.
You might know this ingredient as Tinosorb S or Bemotrizinol. It is a UV filter that covers both UVA and UVB rays.
Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a chemical UVA absorber. It is formulated for high UVA protection (320-400 nm).
Diethylhexyl Butamido Triazone is a photostable UV absorber. It protects in the UVB and UVA II range. UV absorbers are an agent that absorbs UV rays. They protect your skin by using chemical reactions to convert UV rays into heat and energy.
2 Concerns
Also known as Avobenzone, this ingredient is a chemical sunscreen filter that provides protection in the UV-A range.
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.
Beeswax is natural wax produced by honey bees and can be synthetically created. It consists mainly of fatty acid esters and long-chain alcohols.
Not safe for Fungal Acne
Hydrogenated Castor Oil is created by adding hydrogen to castor oil. This helps stabilize the castor oil and raises the melting point. At room temperature, hydrogenated castor oil is solid.
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.
1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.
Aluminum Hydroxide is a form of aluminum. It can be naturally found in nature as the mineral gibbsite. In cosmetics, Aluminum Hydroxide is used as a colorant, pH adjuster, and absorbent.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Caprylic Acid is a fatty acid commonly found in plant oils, such as palm and coconut oils.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Ci 77891 is a white pigment from Titanium dioxide. It is naturally found in minerals such as rutile and ilmenite.
Octyldodecanol, Polyethylene, Butylene Glycol Cocoate, Hydrogenated Microcrystalline Wax, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Diethylhexyl Butamido Triazone, Butyl Methoxydibenzoylmethane, Ethylhexyl Salicylate, Beeswax, Hydrogenated Castor Oil, Water, 1,2-Hexanediol, Aluminum Hydroxide, Butylene Glycol, Caprylic Acid, Caprylyl Glycol, Cichorium Intybus Root Extract, Disodium Stearoyl Glutamate, Methyl Methacrylate Crosspolymer, Oxothiazolidine, Saccharin, Sodium Benzoate, CI 77891, Tocopheryl Glucoside
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 Methoxycinnamate is an organic compound that provides UVB protection. It often goes by the more common name of octinoxate. It is created from methoxycinnamic acid and 2-ethylhexanol.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
Ethylhexyl Triazone is a modern chemical sunscreen that protects from UV-B radiation.
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.
Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.
You might know this ingredient as Tinosorb S or Bemotrizinol. It is a UV filter that covers both UVA and UVB rays.
2 Concerns
Also known as Avobenzone, this ingredient is a chemical sunscreen filter that provides protection in the UV-A range.
Bis-Peg-18 Methyl Ether Dimethyl Silane belongs to the siloxanes and silicones classes. It is synthetically created and has a waxy composition.
Mica refers to a group of silicate minerals. Mica crystals are easily split to give products a shimmer. These crystals are able to reflect light to temporarily give your skin a glowy look.
A type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as traditional alcohols.
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.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken and improve the texture of products.
5 Benefits
You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.
5 Concerns
Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is usually an astringent alcohol.
5 Concerns
Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
Antioxidant 6 Benefits Not safe for Fungal Acne
Ascorbyl Palmitate is created by combining pure Vitamin C and palmitic acid. It is an antioxidant and helps reduce hyperpigmentation.
Azelaic acid is a naturally occurring acid derived from grains. This ingredient is effective in treating acne, rosacea, and other skin conditions.
BHT is a synthetic antioxidant. As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
Butylene Glycol Cocoate isn't fungal acne safe.
Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.
4 Benefits 2 Concerns
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
Decyl Glucoside is a glucose-based surfactant. Surfactants help clean the skin by trapping oil, sebum, and dirt to be washed away.
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.
Dipotassium Phosphate is an inorganic salt. This just means it has a different structure than organic salts. It is a stabilizing and pH adjusting ingredient.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Not safe for Fungal Acne
Glyceryl Oleate is a fragrance and isn't fungal acne safe.
Glyceryl Stearate is a mix of glycerin and stearic acid.
Hexylene Glycol is a surfactant. Glycols are a class of alcohols. Hexylene Glycol is a surfactant and emulsifier.
Lecithin is a term for a group of substances found in plants, animals, and humans. They are made up of mixture of fatty acids. These fatty acids usually are a mixture of phosphoric acid's choline ester connected to stearic, oleic, and palmitic acids. Most lecithins are created from plant ingredients scuh as sunflower.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Phenethyl Alcohol is a colorless and aromatic alohol. It is naturally occuring in essential oils.
Phenoxyethanol 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.
Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
Potassium Phosphate is the term for the salts of potassium and phosphate ions. Our bodies naturally create and use potassium phosphate.
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.
Chances are, you eat sodium chloride every day. Sodium Chloride is also known as table salt.
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.
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.
Tranexamic Acid is best used for treating hyperpigmentation, discoloration, and melasma. It can also help build a stronger skin barrier.
Water, Ethylhexyl Methoxycinnamate, Butylene Glycol, Propylene Glycol, Ethylhexyl Triazone, Ethylhexyl Salicylate, Cyclopentasiloxane, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Butyl Methoxydibenzoylmethane, Polymethyl Methacrylate, Bis-Peg-18 Methyl Ether Dimethyl Silane, Bellis Perennis Flower Extract, Mica, Isostearyl Alcohol, Titanium Dioxide, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-2, 3-O-Ethyl Ascorbic Acid, 4-Butylresorcinol, Alcohol, Alcohol Denat., Ascorbyl Palmitate, Azelaic Acid, BHT, Butylene Glycol Cocoate, Caprylic/Capric Triglyceride, Caprylyl Glycol, Carbomer, Citric Acid, Decyl Glucoside, Diacetyl Boldine, Dimethicone, Dipotassium Phosphate, Disodium EDTA, Disodium Phosphate, Ethylcellulose, Ethylhexylglycerin, Glycerin, Glyceryl Oleate, Glyceryl Stearate, Hexylene Glycol, Lecithin, Melissa Officinalis Leaf Extract, Parfum, Phenethyl Alcohol, Phenoxyethanol, Polysilicone-11, Polysorbate 20, Potassium Phosphate, Silica, Sodium Chloride, Sodium Cholate, Sodium Hydroxide, Tocopherol, Tranexamic Acid, Undecylenoyl Phenylalanine
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene Glycol Cocoate isn't fungal acne safe.
You might know this ingredient as Tinosorb S or Bemotrizinol. It is a UV filter that covers both UVA and UVB rays.
Bemotrizinol has two peak UV absorption peaks ( 310 and 340 nm) and is able to absorb both UV-A and UV-B rays. Skin exposed to UV causes free-radical molecules to form. This ingredient works by preventing the UV from reaching your skin.
It is highly photostable and helps prevent the photodegration of other sunscreen ingredients such as avobenzone.
Bemotrizinol is not approved in the US but is allowed in the EU, Australia, and Asia.
In fact, it is the most effective UV absorber at maximum concentration (measured by SPF) permitted by in the EU.
It is oil-soluble.
Learn more about Bis-Ethylhexyloxyphenol Methoxyphenyl TriazineAlso 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 MethoxydibenzoylmethaneEthylhexyl 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 SalicylateWater. 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 WaterButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
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 GlycolIngredient Ratings
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When to use
Avène SunsiStick KA SPF 50+ 25 ingredients
Sesderma Azelac RU Luminous Fluid SPF 50 56 ingredients
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