Here's our complete breakdown comparing the ingredients, attributes, and more of Biodermal Ultra Light Sun Fluid SPF50+ versus Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 .
Published on August 15, 2022
Overview
What they are
These products are both sunscreens. They have a total of 10 ingredients in common
Cool Features
They both contain SPF and Vitamin E
Suited For
They're both likely to be good for brightening skin
Free From
They both do not contain any common allergens, fragrances, oils, parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Sunscreen
Sunscreens help absorb or reflect UV radiation and protect skin against skin damage. Sunscreens may come in the form of lotion, gel, foam, spray, or solid-stick.
Sunscreen
Sunscreens help absorb or reflect UV radiation and protect skin against skin damage. Sunscreens may come in the form of lotion, gel, foam, spray, or solid-stick.
Ingredient Info
Biodermal Ultra Light Sun Fluid SPF50+ 26 ingredients
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 40 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Malassezia Safe
This product is free of malassezia feeding ingredients 🎉
Not Reef Safe
Ingredients in this product that are not reef safe:
EU Allergen Free
This product is free of EU allergens 🎉
Vegan
This product is vegan 🎉
Not Cruelty Free
This product is not cruelty-free 😥
Contains Alcohol
Ingredients in this product that are types of alcohol:
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Not Reef Safe
Ingredients in this product that are not reef safe:
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
At a glance
Click on any of the items below to learn more
Biodermal Ultra Light Sun Fluid SPF50+ 26 ingredients
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 40 ingredients
Notable Ingredients
This product contains 5 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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Benefits
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 4 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Biodermal Ultra Light Sun Fluid SPF50+ 26 ingredients
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 40 ingredients
Water • Diisopropyl Sebacate • Dibutyl Adipate • Diethylamino Hydroxybenzoyl Hexyl Benzoate • Tris-Biphenyl Triazine • Ethylhexyl Salicylate • Propanediol • Silica • Ethylhexyl Triazone • Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine • 1,2-Hexanediol • Tocopheryl Acetate • Potassium Cetyl Phosphate • Cetyl Alcohol • Bis-Ethylhexyl Hydroxydimethoxy Benzylmalonate • Sarcosine • Sodium Hyaluronate • Decyl Glucoside • Vp/Eicosene Copolymer • Butylene Glycol • Pentylene Glycol • Xanthan Gum • Carbomer • Citric Acid • Disodium Phosphate • Sodium Benzoate
Water • Alcohol Denat. • Diisopropyl Sebacate • Isopropyl Lauroyl Sarcosinate • Ethylhexyl Triazone • Propylene Glycol • Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine • Diethylamino Hydroxybenzoyl Hexyl Benzoate • Titanium Dioxide • Glycerin • Methyl Methacrylate Crosspolymer • Drometrizole Trisiloxane • Tocopherol • Stearic Acid • Phenoxyethanol • Cetyl Alcohol • Palmitic Acid • Styrene/Acrylates Copolymer • Ceteth-10 • Caprylyl Glycol • Menthoxypropanediol • Dextrin Palmitate • Acrylates/C10-30 Alkyl Acrylate Crosspolymer • Aluminum Hydroxide • Ammonium Polyacryloyldimethyl Taurate • Butylene Glycol • Potassium Hydroxide • Peg-8 Laurate • Disodium EDTA • Adenosine • Myristic Acid • Gentiana Lutea Root Extract • Pentylene Glycol • Mentha Piperita Extract • Butyrospermum Parkii Seedcake Extract • Rosa Gallica Flower Extract • Sorbitol • Moringa Oleifera Seed Extract • Disodium Phosphate • Citric Acid
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterBiodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 1.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 1.
We don't have a description for Diisopropyl Sebacate.
Biodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 2.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 3.
Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a chemical UVA absorber. It is formulated for high UVA protection (320-400 nm) and photostability.
DHHB has been approved by the EU, Japan, Taiwan, and South America for use up to 10%.
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.
UV rays are a form of electromagnetic radiation from the sun. Other sources include tanning beds and welding torches. Radiation is the emission of energy. UV Rays are divided into 3 groups. UVA (320-400 nm) contains the least amount of energy. They are linked to long term skin damage such as wrinkles and hyperpigmentation. UVB (290-320 nm) rays emit more energy than UVA rays. They are capable of damaging DNA in skin cells. UVB causes sunburns and are thought to be linked to skin cancer. UVC (200-280 nm) contains the highest amount of energy. Our ozone blocks UVC. UVC can also originate from welding torches, mercury lamps, and sanitizing bulbs.
Learn more about Diethylamino Hydroxybenzoyl Hexyl BenzoateBiodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 4.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 8.
Ethylhexyl Triazone is a modern chemical sunscreen that protects from UV-B radiation.
It is the most effective of existing UV-B filters, as it provides the highest level of photo-stable absorption. It protects from the entire UV-B range (280 to 320nm), with it's highest level of protection at 314nm.
Ethylhexyl Triazone is oil soluble, oderless and colorless, which mean it is able to be incorporated into a variety of different formulations.
It is not currently available within the United States due to slow changing FDA regulations. Outside of the US, it is used in formulations at concentrations up to 5%.
Learn more about Ethylhexyl TriazoneBiodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 9.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 5.
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 TriazineBiodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 10.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 7.
Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
Cetyl Alcohol is not related to SD alcohol, denatured alcohol, or ethyl alcohol. The FDA allows products labeled "alcohol-free" to have fatty alcohols.
Its main roles are:
Learn more about Cetyl AlcoholBiodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 14.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 16.
Butylene 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.
Biodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 20.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 26.
Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can help thicken or emulsify a product. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolBiodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 21.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 33.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and look more even.
Read more about some other popular AHA's here:
Learn more about Citric AcidBiodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 24.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 40.
We don't have a description for Disodium Phosphate.
Biodermal Ultra Light Sun Fluid SPF50+ contains this as ingredient number 25.
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 contains this as ingredient number 39.
Here's what our community thinks of the ingredients in these two products.
Biodermal Ultra Light Sun Fluid SPF50+ 26 ingredients
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 40 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Biodermal Ultra Light Sun Fluid SPF50+ 26 ingredients
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 40 ingredients
Reviews
Here's what our community thinks
Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50 40 ingredients
Alternatives
Our Dupe Finder has found 50 potential alternatives that have similar ingredients to Biodermal Ultra Light Sun Fluid SPF50+.
See 50 alternativesOur Dupe Finder has found 50 potential alternatives that have similar ingredients to Kiehl's Ultra Light Daily UV Defense Aqua Gel SPF 50.
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