Etude House Soon Jung Director's Moisture Sun Cream SPF50+ PA++++ Versus ACO Sun Ultra Light Face Fluid SPF 50+
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 ConditioningDibutyl Adipate
EmollientPropanediol
Solvent
Butylene Glycol
Humectant
Ethylhexyl Triazone
UV Absorber
Terephthalylidene Dicamphor Sulfonic Acid
UV Absorber
Polyglyceryl-3 Distearate
Emulsifying
Tromethamine
Buffering1,2-Hexanediol
Skin Conditioning
Pentylene Glycol
Skin Conditioning
Cetearyl Alcohol
Emollient
Diethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Polysilicone-15
UV Filter
Glyceryl Stearate
Emollient
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
Skin Conditioning
Potassium Cetyl Phosphate
EmulsifyingMethylpropanediol
SolventSilica
Abrasive
Carbomer
Emulsion StabilisingCentella Asiatica Extract
Cleansing
Glyceryl Stearate Citrate
Emollient
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingEthylhexylglycerin
Skin ConditioningAmmonium Acryloyldimethyltaurate/Vp Copolymer
Polyether-1
Disodium EDTA
Biosaccharide Gum-1
Humectant
Allantoin
Skin Conditioning
Panthenol
Skin Conditioning
Tocopherol
Antioxidant
Madecassoside
Antioxidant
Water, Dibutyl Adipate, Propanediol, Butylene Glycol, Ethylhexyl Triazone, Terephthalylidene Dicamphor Sulfonic Acid, Polyglyceryl-3 Distearate, Tromethamine, 1,2-Hexanediol, Pentylene Glycol, Cetearyl Alcohol, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polysilicone-15, Glyceryl Stearate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Potassium Cetyl Phosphate, Methylpropanediol, Silica, Carbomer, Centella Asiatica Extract, Glyceryl Stearate Citrate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ethylhexylglycerin, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Polyether-1, Disodium EDTA, Biosaccharide Gum-1, Allantoin, Panthenol, Tocopherol, Madecassoside
Water
Skin ConditioningDiisopropyl Sebacate
EmollientDibutyl Adipate
EmollientDiethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Tris-Biphenyl Triazine
UV Absorber
Ethylhexyl Salicylate
UV Absorber
Propanediol
Solvent
Silica
Abrasive
Ethylhexyl Triazone
UV Absorber
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
Skin Conditioning
1,2-Hexanediol
Skin Conditioning
Tocopheryl Acetate
Antioxidant
Potassium Cetyl Phosphate
EmulsifyingCetyl Alcohol
Emollient
Bis-Ethylhexyl Hydroxydimethoxy Benzylmalonate
Antioxidant
Sarcosine
Skin Conditioning
Sodium Hyaluronate
Humectant
Decyl Glucoside
Cleansing
Vp/Eicosene Copolymer
Butylene Glycol
Humectant
Pentylene Glycol
Skin Conditioning
Xanthan Gum
EmulsifyingCarbomer
Emulsion StabilisingCitric Acid
Buffering
Disodium Phosphate
BufferingSodium Benzoate
Masking
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
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
This ingredient is better known as bemotrizinol or Tinosorb S and is one of the best broad-spectrum UV filters in modern sunscreen.
It works by absorbing UV light across a whole range (280-400 nm) with peaks around 310 nm (UVB) and 340-345 nm (UVA). This means it covers UVB plus the deeper UVA wavelengths that drive photoaging and pigmentation.
Another pro?
It's exceptionally photostable, barely degrades in sunlight, and acts as a "bodyguard" for less stable filters.
That's why you'll see it paired with avobenzone or octinoxate; this team up ensures they keep working through sun exposure.
Safety reviews have been reassuring across the board. This ingredient shows low absorption through the skin, rarely irritates, and lab studies found it doesn't act like a hormone in the body (a concern that's been raised about some older sunscreen filters).
On maximum concentrations:
In 2026, the US F.D.A finally added it as an OTC sunscreen ingredient at concentrations up to 6% for adults / children 6 months and older
Learn more about Bis-Ethylhexyloxyphenol Methoxyphenyl TriazineButylene 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 GlycolCarbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture.
Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%.
It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier.
Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%.
A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions.
Learn more about CarbomerDibutyl Adipate is a lightweight, oil-soluble ester that acts as an emollient and solvent. It helps products spread more easily and leaves a soft, silky, dry-touch finish without being greasy.
You'll likely see this ingredient in sunscreens because it does a nice job dissolving UV filters and keeping them evenly distributed.
This ingredient has been found to be safe as used in cosmetics, wasn't a skin or eye irritant in clinical patch testing, and wasn't phototoxic.
In a clinical comedogenicity test, this ingredient tested negative so it isn't likely to clog pores.
Typical use levels are about 5-8% for sunscreens + nail products, but can range from 0.005%-8% depending on the product.
Learn more about Dibutyl AdipateDiethylamino 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 BenzoateEthylhexyl Triazone (aka Octyl Triazone) is an oil-soluble organic UVB filter. It has peak absorption around 314 nm, right in the middle of the UVB range.
This ingredient is described as one of the most effective UVB filters available and small concentrations are enough to deliver a high SPF thanks to its strong UV absorbing power.
Formulators love it for its stability; its ability to filter UV stays practically unchanged even under intense radiation and it can also help boost the photostability of less stable filters like avobenzone.
It's also a great pick for water resistant products because it's insoluble in water and has a good affinity for keratin.
Because it's a big, heavy molecule, the European Scientific Committee has found to to have very low dermal penetration and negative results for allergenicity.
In vitro testing also showed a low absorption rate and clean results on irritation.
Typical use levels are 1-5% with 5% being the maximum in the EU, Japan, and other markets that allow it. However, this ingredient is not approved yet in the US or Canada.
Learn more about Ethylhexyl TriazonePentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
Learn more about Pentylene GlycolPotassium Cetyl Phosphate is the potassium salt of a mixture. This mixture consists of the esters from phosphoricacid and cetyl alcohol.
Potassium Cetyl Phosphate is an emulsifier and cleansing agent. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.
As a cleansing agent, Potassium Cetyl Phosphate helps gather oils, dirts, and pollutants from your skin. This makes it easier to rinse them away with water.
Learn more about Potassium Cetyl PhosphatePropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolSilica, also known as silicon dioxide, is a naturally occurring mineral. It is used as a fine, spherical, and porous powder in cosmetics.
Though it has exfoliant properties, the function of silica varies depending on the product.
The unique structure of silica enhances the spreadability and adds smoothness, making it a great texture enhancer.
It is also used as an active carrier, emulsifier, and mattifier due to its ability to absorb excess oil.
In some products, tiny microneedles called spicules are made from silica or hydrolyzed sponge. When you rub them in, they lightly polish away dead skin layers and enhance the penetration of active ingredients.
Learn more about SilicaWater. 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
