Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50 Versus CeraVe AM Facial Moisturizing Lotion With SPF 50

Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50 Versus CeraVe AM Facial Moisturizing Lotion With SPF 50

This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.

This barrier-repair day moisturizer is formulated around Niacinamide and Ceramide NP to strengthen the skin barrier and hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Butyl Methoxydibenzoylmethane

Ethylhexyl Methoxycinnamate

Ethylhexyl Salicylate

Octocrylene

Water

Glycerin

Silica

3-O-Ethyl Ascorbic Acid

Ascorbyl Glucoside

Dimethicone

Propanediol

Tetrahexyldecyl Ascorbate

Acetyl Zingerone

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Diethylhexyl Syringylidenemalonate

Dimethicone/Vinyl Dimethicone Crosspolymer

Porphyra Umbilicalis Extract

Hydrogenated Lecithin

Ricinus Communis Seed Oil

Sodium Hydroxide

Tocopherol

Xanthan Gum

Ethylhexylglycerin

Laureth-4

Phenoxyethanol

Potassium Sorbate

Sodium Benzoate

Titanium Dioxide

Iron Oxides

Entada Phaseoloides Bark/Seed Extract

Butyl Methoxydibenzoylmethane, Ethylhexyl Methoxycinnamate, Ethylhexyl Salicylate, Octocrylene, Water, Glycerin, Silica, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Dimethicone, Propanediol, Tetrahexyldecyl Ascorbate, Acetyl Zingerone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Diethylhexyl Syringylidenemalonate, Dimethicone/Vinyl Dimethicone Crosspolymer, Porphyra Umbilicalis Extract, Hydrogenated Lecithin, Ricinus Communis Seed Oil, Sodium Hydroxide, Tocopherol, Xanthan Gum, Ethylhexylglycerin, Laureth-4, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Titanium Dioxide, Iron Oxides, Entada Phaseoloides Bark/Seed Extract

Isopropyl Palmitate

Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine

Niacinamide

Pentylene Glycol

Ethylhexyl Triazone

Zea Mays Starch

Potassium Cetyl Phosphate

Diisopropyl Sebacate

Oryza Sativa Cera

Oryza Sativa Bran Wax

Stearic Acid

Ceramide NP

Ceramide AP

Ceramide EOP

Carbomer

Glyceryl Stearate

Cetearyl Alcohol

Triethanolamine

Behentrimonium Methosulfate

Triethyl Citrate

Sodium Hyaluronate

Sodium Polyacrylate

Sodium Lauroyl Lactylate

Myristic Acid

Cholesterol

Palmitic Acid

Caprylyl Glycol

Citric Acid

Trisodium Ethylenediamine Disuccinate

Phytosphingosine

Butyrospermum Parkii Butter

Benzoic Acid

PEG-100 Stearate

Water, Glycerin, Isopropyl Palmitate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Ethylhexyl Salicylate, Niacinamide, Pentylene Glycol, Butyl Methoxydibenzoylmethane, Ethylhexyl Triazone, Propanediol, Zea Mays Starch, Potassium Cetyl Phosphate, Diisopropyl Sebacate, Oryza Sativa Cera, Oryza Sativa Bran Wax, Stearic Acid, Ceramide NP, Ceramide AP, Ceramide EOP, Carbomer, Glyceryl Stearate, Cetearyl Alcohol, Triethanolamine, Behentrimonium Methosulfate, Triethyl Citrate, Sodium Hyaluronate, Sodium Polyacrylate, Sodium Lauroyl Lactylate, Myristic Acid, Cholesterol, Palmitic Acid, Tocopherol, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Phytosphingosine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Butyrospermum Parkii Butter, Benzoic Acid, PEG-100 Stearate

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.

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.

Also known as Avobenzone, this ingredient is an oil-soluble used to absorb the full spectrum of UVA rays (peak 357 nm).

It's one of the most effective UVA filters available but has a major caveat of photostability: avobenzone is susceptible to photodegradation.

This means it can lose efficacy when exposed to sunlight without the help of a stabilizing agent.

Studies show antioxidants (like vitamin E or vitamin C) and some UV filters (like octocrylene and Tinosorb S) can meaningfully improve its stability in a formulation.

The maximum allowable concentration according to regulation is 3% in the US + Canada, and 5% in the EU, Australia, China, Korea, and ASEAN countries.

It has a well-support safety profile: a comprehensive 2025 review found minimal toxicity with no evidence of carcinogenicity.

Overall, avobenzone is a safe and regulated ingredient used in sunscreen for over 40 years.

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.

Glycerin (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.

Propanediol 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.

Tocopherol is a fat-soluble antioxidant known as Vitamin E.

You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.

Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.

It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.

This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.

This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.

In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.

Concentrations usually range from 0.1-1% in most leave-on products.

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!

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

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