Tatcha The Milky Sunscreen SPF 50+ Versus Eucerin Advanced Hydration Lightweight Sunscreen Lotion SPF 50
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Butyl Methoxydibenzoylmethane 2.3%
UV Absorber
Homosalate 6.6%
Skin Conditioning
Ethylhexyl Salicylate 4.5%
UV Absorber
Water
Skin ConditioningSaccharomyces/Rice Ferment Filtrate
Skin Conditioning
Butylene Glycol
Humectant
Pentylene Glycol
Skin Conditioning
Polyglyceryl-10 Laurate
Skin Conditioning
Propanediol
Solvent
Camellia Sinensis Leaf Extract
Antimicrobial
Cladosiphon Okamuranus Extract
Skin ConditioningAloe Barbadensis Leaf Extract
Emollient
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingCaprylic/Capric Triglyceride
Masking
Hydrogenated Phosphatidylcholine
Emulsifying
Tocopherol
Antioxidant
Ectoin
Skin Conditioning
Caprylyl Glycol
Emollient
Tocopheryl Acetate
Antioxidant
Parfum
Masking
Ethylhexylglycerin
Skin ConditioningSodium Hydroxide
BufferingSilica
Abrasive
Phenoxyethanol
Preservative
CI 77491
Cosmetic ColorantButyl Methoxydibenzoylmethane 2.3%, Homosalate 6.6%, Ethylhexyl Salicylate 4.5%, Water, Saccharomyces/Rice Ferment Filtrate, Butylene Glycol, Pentylene Glycol, Polyglyceryl-10 Laurate, Propanediol, Camellia Sinensis Leaf Extract, Cladosiphon Okamuranus Extract, Aloe Barbadensis Leaf Extract, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Caprylic/Capric Triglyceride, Hydrogenated Phosphatidylcholine, Tocopherol, Ectoin, Caprylyl Glycol, Tocopheryl Acetate, Parfum, Ethylhexylglycerin, Sodium Hydroxide, Silica, Phenoxyethanol, CI 77491
Butyl Methoxydibenzoylmethane 3%
UV Absorber
Homosalate 9%
Skin Conditioning
Ethylhexyl Salicylate 4.5%
UV Absorber
Octocrylene 9%
UV Absorber
Water
Skin ConditioningC12-15 Alkyl Benzoate
AntimicrobialNeopentyl Glycol Diheptanoate
EmollientStyrene/Acrylates Copolymer
Butylene Glycol
Humectant
Diethylhexyl Syringylidenemalonate
Skin ProtectingVp/Eicosene Copolymer
Sodium Hyaluronate
Humectant
Glycyrrhiza Inflata Root Extract
Skin Conditioning
Glycyrrhetinic Acid
Skin Conditioning
Tocopherol
Antioxidant
Aloe Barbadensis Leaf Juice
Skin Conditioning
1,2-Hexanediol
Skin Conditioning
Hydroxyacetophenone
Antioxidant
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingPotassium Hydroxide
BufferingDisodium EDTA
Sodium Ascorbyl Phosphate
Antioxidant
Butyl Methoxydibenzoylmethane 3%, Homosalate 9%, Ethylhexyl Salicylate 4.5%, Octocrylene 9%, Water, C12-15 Alkyl Benzoate, Neopentyl Glycol Diheptanoate, Styrene/Acrylates Copolymer, Butylene Glycol, Diethylhexyl Syringylidenemalonate, Vp/Eicosene Copolymer, Sodium Hyaluronate, Glycyrrhiza Inflata Root Extract, Glycyrrhetinic Acid, Tocopherol, Aloe Barbadensis Leaf Juice, 1,2-Hexanediol, Hydroxyacetophenone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Potassium Hydroxide, Disodium EDTA, Sodium Ascorbyl Phosphate
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products.
As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied.
It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin.
A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record.
Learn more about Acrylates/C10-30 Alkyl Acrylate CrosspolymerAlso 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 MethoxydibenzoylmethaneButylene 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 GlycolEthylhexyl 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 SalicylateHomosalate 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 HomosalateTocopherol (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.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolWater. 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
