Skin science article
Bioderma Cicabio SPF 50+ Versus Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50
Bioderma Cicabio SPF 50+ Versus Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50 This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. What's ins
Bioderma Cicabio SPF 50+ Versus Paula's Choice Extra Care Non-Greasy Sunscreen SPF 50
This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.
This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Diethylamino Hydroxybenzoyl Hexyl Benzoate
Homosalate
Diisopropyl Sebacate
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
Dibutyl Adipate
Glycerin
Ethylhexyl Salicylate
Ethylhexyl Triazone
Butylene Glycol
Lauroyl Lysine
Propanediol
Silica
Sodium Citrate
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Polyacrylate Crosspolymer-6
Pentylene Glycol
Copper Sulfate
1,2-Hexanediol
Caprylyl Glycol
Citric Acid
Ectoin
Mannitol
Sodium Hyaluronate
Xylitol
Zinc Sulfate
Vitis Vinifera Vine Extract
Rhamnose
Polysorbate 60
Sorbitan Isostearate
Asiaticoside
Madecassic Acid
Asiatic Acid
Acetyl Dipeptide-1 Cetyl Ester
Fructooligosaccharides
Caprylic/Capric Triglyceride
Laminaria Ochroleuca Extract
Water, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Homosalate, Diisopropyl Sebacate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Dibutyl Adipate, Glycerin, Ethylhexyl Salicylate, Ethylhexyl Triazone, Butylene Glycol, Lauroyl Lysine, Propanediol, Silica, Sodium Citrate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polyacrylate Crosspolymer-6, Pentylene Glycol, Copper Sulfate, 1,2-Hexanediol, Caprylyl Glycol, Citric Acid, Ectoin, Mannitol, Sodium Hyaluronate, Xylitol, Zinc Sulfate, Vitis Vinifera Vine Extract, Rhamnose, Polysorbate 60, Sorbitan Isostearate, Asiaticoside, Madecassic Acid, Asiatic Acid, Acetyl Dipeptide-1 Cetyl Ester, Fructooligosaccharides, Caprylic/Capric Triglyceride, Laminaria Ochroleuca Extract
Homosalate 10%
Benzophenone-3 6%
Ethylhexyl Salicylate 5%
Butyl Methoxydibenzoylmethane 3%
Octocrylene 2%
PEG-8
Polyethylene
Dimethicone
Picrasma Excelsa Wood Extract
Sodium Ascorbyl Phosphate
Retinyl Palmitate
Tocopherol
Tocopheryl Acetate
Titanium Dioxide
Aloe Barbadensis Leaf Juice
Bentonite
Methyl Glucose Sesquistearate
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Sodium Polyacrylate
Kaolin
Ethylhexylglycerin
Disodium EDTA
Sodium Hydroxide
Phenoxyethanol
Chlorphenesin
Homosalate 10%, Benzophenone-3 6%, Ethylhexyl Salicylate 5%, Butyl Methoxydibenzoylmethane 3%, Octocrylene 2%, Water, Butylene Glycol, PEG-8, Polyethylene, Silica, Dimethicone, Picrasma Excelsa Wood Extract, Sodium Ascorbyl Phosphate, Retinyl Palmitate, Tocopherol, Tocopheryl Acetate, Titanium Dioxide, Aloe Barbadensis Leaf Juice, Bentonite, Methyl Glucose Sesquistearate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Polyacrylate, Kaolin, Ethylhexylglycerin, Disodium EDTA, Sodium Hydroxide, Phenoxyethanol, Chlorphenesin
Reviews
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene 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.
Ethylhexyl Salicylate (also called Octisalate or Octyl Salicylate) is an oil-soluble organic UV filter that's been used in sunscreen since the 1950's.
It absorbs UVB light in the 280-320 nm range with a peak absorbance around 306 nm.
You'll often see it paired with other UV filters to boost overall SPF because octisalate is a fairly week filter on its own.
The reason you'll see it so often is because it can help solubilize and stabilize the trickier filters like oxybenzone and avobenzone.
Unlike these filters, octisalate has pretty good photostability and doesn't create skin-damaging free radicals when exposed to sunlight.
The fatty-alcohol part of the molecule also gives it a light, emollient feel so it doubles as a nice texture enhancer.
Usage levels vary around the world:
Safety-wise, this ingredient has a pretty reassuring track record. The EU's Scientific Committee on Consumer Products (SCCP) found very low skin penetration in human skin tests and negative results for irritation, phototoxicity, and photoallergy.
The real-world allergy risk is pretty low too; a 2012 European study of 1,031 people recorded only 2 reactions to it (a rate of 0.19%).
You might have seen scary headlines about sunscreen getting into your blood.
In 2019, the FDA found that several chemical filters can absorb through the skin and show up in the bloodstream at small but measurable levels.
Here's the important part: these tiny levels are just a cutoff the FDA uses to decide which ingredients need more testing and doesn't mean anything harmful was found.
The researchers were clear that the results are no reason to stop wearing sunscreen.
Homosalate is an oil-soluble organic UVB filter that has been a sunscreen staple for decades. Its job is to absorb UVB rays (~295-315 nm) and protect your skin against sunburn,
This is one of the more photostable organic UV filters; it holds up pretty well under UV and a 2022 quantum-chemistry study found it stays stable in sunlight.
It's actually so reliable that formulators often pair it with shakier ingredients like oxybenzone and avobenzone. Formulators also use it to help dissolve the other UV filters into the oil phase.
One thing to keep in mind: "stable" isn't the same as "strong". On its own, homosalate is actually a pretty weak UV filter so it's better off as a helpful team player that helps boost overall SPF protection.
The safety picture is a bit nuanced but not scary.
This ingredient has a long track record of being gentle and regulators agree it isn't an irritant; EU's Scientific Committee on Consumer Safety found that homosalate is not considered a skin irritant and doesn't raise eye-irritation flags either.
There's talk about homosalate because your skin absorbs a little bit of it into your bloodstream. A 2020 FDA-backed study found homosalate showed up in people's blood levels at the level where the FDA decides to double check.
The EU's Scientific Committee on Consumer Safety (SCCS) also found small amounts in blood and breast milk. They estimated that about 5% of what you apply gets absorbed through the skin.
Due to the debate about whether it might mess with hormones, the SCCS recommended a maximum limit of 0.5% in most products of 7.3% in face creams/pump sprays.
One important thing to keep in mind: in the US, Homosalate is currently labeled "non-GRASE" by the FDA. This sounds alarming but really just means the FDA wants more data to confirm it's safe. It's not confidently saying this ingredient is harmful.
As of now, homosalate is still completely legal and widely used while that research gets done.
The current maximum limits are:
Silica, 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.
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!