iUNIK Centella Calming Daily Sun Water SPF 50+ Versus COSRX Ultra-Light Invisible Sunscreen SPF 50 PA++++
This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.
This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCentella Asiatica Leaf Water
Skin Conditioning
Ethylhexyl Salicylate
UV Absorber
Phenylbenzimidazole Sulfonic Acid
UV Absorber
Diethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Butyloctyl Salicylate
Skin Conditioning
Tromethamine
BufferingBis-Ethylhexyloxyphenol Methoxyphenyl Triazine
Skin Conditioning
Dibutyl Adipate
Emollient2,3-Butanediol
HumectantTerephthalylidene Dicamphor Sulfonic Acid
UV Absorber
1,2-Hexanediol
Skin Conditioning
Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer
Skin ConditioningMicrocrystalline Cellulose
AbsorbentSodium Stearoyl Glutamate
CleansingPolyester-5
Cellulose Gum
Emulsion StabilisingAllantoin
Skin Conditioning
Ethylhexylglycerin
Skin ConditioningButylene Glycol
Humectant
Quercus Acutissima Fruit Extract
AstringentGlycerin
Humectant
Dipropylene Glycol
HumectantPanthenol
Skin Conditioning
Hydrogenated Lecithin
Emulsifying
Cetearyl Olivate
Sorbitan Olivate
Emulsifying
Anastatica Hierochuntica Extract
AstringentHydrolyzed Hyaluronic Acid
Humectant
Madecassoside
Antioxidant
Ulmus Davidiana Root Extract
Skin Conditioning
Pinus Palustris Leaf Extract
TonicOenothera Biennis Flower Extract
AstringentPueraria Lobata Root Extract
HumectantAsiaticoside
Antioxidant
Madecassic Acid
Skin Conditioning
Asiatic Acid
Skin Conditioning
Water, Centella Asiatica Leaf Water, Ethylhexyl Salicylate, Phenylbenzimidazole Sulfonic Acid, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Butyloctyl Salicylate, Tromethamine, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Dibutyl Adipate, 2,3-Butanediol, Terephthalylidene Dicamphor Sulfonic Acid, 1,2-Hexanediol, Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer, Microcrystalline Cellulose, Sodium Stearoyl Glutamate, Polyester-5, Cellulose Gum, Allantoin, Ethylhexylglycerin, Butylene Glycol, Quercus Acutissima Fruit Extract, Glycerin, Dipropylene Glycol, Panthenol, Hydrogenated Lecithin, Cetearyl Olivate, Sorbitan Olivate, Anastatica Hierochuntica Extract, Hydrolyzed Hyaluronic Acid, Madecassoside, Ulmus Davidiana Root Extract, Pinus Palustris Leaf Extract, Oenothera Biennis Flower Extract, Pueraria Lobata Root Extract, Asiaticoside, Madecassic Acid, Asiatic Acid
Aloe Barbadensis Leaf Water
MaskingDiethylhexyl Succinate
EmollientPropanediol
Solvent
Water
Skin ConditioningDrometrizole Trisiloxane
UV Absorber
Ethylhexyl Triazone
UV Absorber
Niacinamide
Smoothing
Diethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Terephthalylidene Dicamphor Sulfonic Acid
UV Absorber
1,2-Hexanediol
Skin Conditioning
Behenyl Alcohol
Emollient
Methyl Trimethicone
Skin Conditioning
Hamamelis Virginiana Leaf Water
Astringent
Tromethamine
BufferingSodium Polyacryloyldimethyl Taurate
Emulsion StabilisingPolyacrylate Crosspolymer-6
Emulsion StabilisingArachidyl Alcohol
Emollient
Caprylyl Glycol
Emollient
Ethylhexylglycerin
Skin ConditioningArachidyl Glucoside
EmulsifyingSodium Metaphosphate
BufferingAdenosine
Skin Conditioning
Tocopherol
Antioxidant
Sodium Hyaluronate
Humectant
Allantoin
Skin Conditioning
Citric Acid
Buffering
Potassium Sorbate
Preservative
Aloe Barbadensis Leaf Water, Diethylhexyl Succinate, Propanediol, Water, Drometrizole Trisiloxane, Ethylhexyl Triazone, Niacinamide, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Terephthalylidene Dicamphor Sulfonic Acid, 1,2-Hexanediol, Behenyl Alcohol, Methyl Trimethicone, Hamamelis Virginiana Leaf Water, Tromethamine, Sodium Polyacryloyldimethyl Taurate, Polyacrylate Crosspolymer-6, Arachidyl Alcohol, Caprylyl Glycol, Ethylhexylglycerin, Arachidyl Glucoside, Sodium Metaphosphate, Adenosine, Tocopherol, Sodium Hyaluronate, Allantoin, Citric Acid, 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.
1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservatives
Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics.
Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity.
Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation.
It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh.
Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated.
This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%.
Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating.
Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism.
Learn more about AllantoinDiethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a chemical UV-A absorber. It is formulated for high UVA protection (320-400 nm).
DHHB is well-liked for:
DHHB has been approved by the EU, Japan, Taiwan, and South America for use up to 10%. Unfortunately, it has not been approved for use in the US or Canada due to slow regulatory processes.
This ingredient is soluble in oils, fats, and lipids.
Learn more about Diethylamino Hydroxybenzoyl Hexyl BenzoateEthylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Learn more about EthylhexylglycerinTerephthalylidene Dicamphor Sulfonic Acid (aka ecamsule or Mexoryl SX) is a water-soluble organic UV filter developed and patented by L'Oreal back in 1982.
It's one of the better UVA protectors out there and shields skin across a broad UVA range (~290-390 nm) with peak absorption right around 345 nm.
This peak absorption happens to be the exact type of UVA light that sinks deepest into skin and does the most to cause aging and dark spots.
Ecamsule works by soaking up UV rays and turning them into a tiny bit of harmless heat. The molecule basically flips, releases that energy as heat, then snaps back to its original shape and does it all over again. This is also why it's so stable in sunlight and doesn't break down or wear out the way some filters do.
The clinical backing for this ingredient is solid as well:
A large 2008 review by Fourtanier & colleagues (2008) pulled together human trials showing ecamsule-containing sunscreens prevented UV-induced pigmentation, DNA damage, and signs of aging.
That built on earlier work by Seite et al. (1998) that found it protected skin from repeated low-level UVA exposure. And a controlled study by DeLeo et al. (2009) showed that even an SPF 40 cream with ecamsule helped prevent sun-triggered rash even under the real sun.
On concentrations:
Because this ingredient is an acid, it has to be neutralized so it doesn't tank the product's pH.
Safety-wise, it's pretty well tolerated. There are some rare cases of mild irritation mostly in people with sensitivities towards camphor derivatives.
A 2019 FDA study found that volunteers who slathered on sunscreen heavily for several days had tiny amounts of ecamsule show up in their blood. This was slightly above the level at which the FDA asks for extra safety testing; this just means the FDA wants more safety studies done and not evidence that anything harmful actually happens. No problems were found and dermatologists still recommend using sunscreen.
Learn more about Terephthalylidene Dicamphor Sulfonic AcidTromethamine (aka THAM) is a synthetic amino acid that shows up in skincare as a helper ingredient.
It functions as a pH adjuster to help neutralize acidic ingredients and set a formula's pH to the right spot.
This matters a lot because a lot of actives (like vitamin C) needs a specific pH to work well and feel comfortable on skin.
Concentration use ranges from 0.1-1.0% depending on the formula.
Learn more about TromethamineWater. 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
