Kiehl's Beyond Screen UV Serum SPF 50+ Facial Sunscreen Versus Supergoop! Dewscreen Daily Hydrator + Primer SPF 50 PA++++
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Homosalate 7%
Skin Conditioning
Octocrylene 7%
UV Absorber
Ethylhexyl Salicylate 5%
UV Absorber
Butyl Methoxydibenzoylmethane 3%
UV Absorber
Water
Skin ConditioningGlycerin
Humectant
C15-19 Alkane
SolventPropanediol
Solvent
C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer
StabilisingTocopherol
Antioxidant
Sodium Stearoyl Glutamate
CleansingButylene Glycol
Humectant
Cetearyl Alcohol
Emollient
Sclerotium Gum
Emulsion StabilisingHydroxyacetophenone
Antioxidant
Caprylyl Glycol
Emollient
Sodium Starch Octenylsuccinate
AbsorbentGlyceryl Stearate
Emollient
Jojoba Esters
Emollient
Helianthus Annuus Seed Wax
Skin Conditioning
Hydroxypropyl Starch Phosphate
Trisodium Ethylenediamine Disuccinate
Carbomer
Emulsion StabilisingSodium Lactate
Buffering
Sodium Hydroxide
BufferingPolysorbate 20
Emulsifying
Polyglycerin-3
Humectant
Palmitoyl Tripeptide-1
Skin Conditioning
Palmitoyl Tetrapeptide-7
Skin Conditioning
Homosalate 7%, Octocrylene 7%, Ethylhexyl Salicylate 5%, Butyl Methoxydibenzoylmethane 3%, Water, Glycerin, C15-19 Alkane, Propanediol, C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer, Tocopherol, Sodium Stearoyl Glutamate, Butylene Glycol, Cetearyl Alcohol, Sclerotium Gum, Hydroxyacetophenone, Caprylyl Glycol, Sodium Starch Octenylsuccinate, Glyceryl Stearate, Jojoba Esters, Helianthus Annuus Seed Wax, Hydroxypropyl Starch Phosphate, Trisodium Ethylenediamine Disuccinate, Carbomer, Sodium Lactate, Sodium Hydroxide, Polysorbate 20, Polyglycerin-3, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7
Butyl Methoxydibenzoylmethane 3%
UV Absorber
Homosalate 9%
Skin Conditioning
Ethylhexyl Salicylate 4.5%
UV Absorber
Octocrylene 9%
UV Absorber
Water
Skin ConditioningAcrylates/Steareth-20 Methacrylate Copolymer
Pentylene Glycol
Skin Conditioning
Glycerin
Humectant
Isododecane
EmollientPalmitoyl Tripeptide-5
Skin Conditioning
Tremella Fuciformis Sporocarp Extract
Antioxidant
Hydrolyzed Hyaluronic Acid
Humectant
Carthamus Tinctorius Oleosomes
Emollient
Bisabolol
Antioxidant
Dimethicone Crosspolymer-3
Skin Conditioning
Trisodium Ethylenediamine Disuccinate
Betaine
Humectant
Polyglutamic Acid
Skin Conditioning
Sodium Benzoate
Masking
Sodium Hydroxide
BufferingPotassium Sorbate
Preservative
Butyl Methoxydibenzoylmethane 3%, Homosalate 9%, Ethylhexyl Salicylate 4.5%, Octocrylene 9%, Water, Acrylates/Steareth-20 Methacrylate Copolymer, Pentylene Glycol, Glycerin, Isododecane, Palmitoyl Tripeptide-5, Tremella Fuciformis Sporocarp Extract, Hydrolyzed Hyaluronic Acid, Carthamus Tinctorius Oleosomes, Bisabolol, Dimethicone Crosspolymer-3, Trisodium Ethylenediamine Disuccinate, Betaine, Polyglutamic Acid, Sodium Benzoate, Sodium Hydroxide, Potassium Sorbate
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 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 SalicylateGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinHomosalate 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.
Homosalate is not photo-stable, meaning it's strength as a UV filter degrades over time with exposure to the sun. Because of this, it's often used in combination with other chemical sunscreen filters as avobenzone (which protects from the UV-A range). Homosalate also helps act as a solvent for harder-to-dissolve UV filters.
(Part of the reason that sunscreens need to be frequently re-applied is due to the photo instability of many chemical sunscreen filters)
Currently, homosalate is approved in concentrations up to 10% in the EU and 15% in the US. The FDA is currently doing further research on the effects of homosalate, and it is possible that these approved concentrations will change in the future.
Learn more about HomosalateOctocrylene 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.
Octocrylene also acts as an emollient, meaning it helps skin retain moisture and softens skin. It is oil-soluble and hydrophobic, enhancing water-resistant properties in a product.
Those who are using ketoprofen, a topical anti-inflammatory drug, may experience an allergic reaction when using octocrylene. It is best to speak with a healthcare professional about using sunscreens with octocrylene.
The EU allows a maximum of these concentrations:
Learn more about OctocryleneSodium 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.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideTrisodium Ethylenediamine Disuccinate is used to help stabilize a product.
It is a chelating agent, meaning it helps prevent metal ions from binding to other ingredients. This prevents unwanted reactions in products. Metal ions can come into a product via the water ingredient. They are found in trace amounts and are not known to be harmful.
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. Remember to stay hydrated!
Learn more about Water
