Skin science article
Paula's Choice C5 Super Boost Moisturizer Versus Paula's Choice Resist Super-Light Wrinkle Defense SPF 30
Paula's Choice C5 Super Boost Moisturizer Versus Paula's Choice Resist Super-Light Wrinkle Defense SPF 30 This brightening moisturizer is formulated around 3-O-Ethyl Ascorbic Acid and Ascorbyl Glucoside to brighten dull-looking skin. This mineral sunscreen cov
Paula's Choice C5 Super Boost Moisturizer Versus Paula's Choice Resist Super-Light Wrinkle Defense SPF 30
This brightening moisturizer is formulated around 3-O-Ethyl Ascorbic Acid and Ascorbyl Glucoside to brighten dull-looking skin.
This mineral sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Dicaprylyl Carbonate
3-O-Ethyl Ascorbic Acid
Dimethicone
Butylene Glycol
Polyglyceryl-6 Distearate
Ascorbyl Glucoside
Squalane
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Acetyl Sh-Hexapeptide-5 Amide Acetate
Citrullus Lanatus Seed Oil
Hydrogenated Lecithin
Theobroma Cacao Seed Butter
Hydrogenated Phosphatidylcholine
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Sodium Hyaluronate
Oryza Sativa Bran Extract
Propanediol
Jojoba Esters
Tocopherol
Acetyl Zingerone
Cetyl Palmitate
Caprylyl Glycol
Cetyl Alcohol
Polyglyceryl-3 Beeswax
Sodium Hydroxide
Sorbitan Olivate
Sorbitan Palmitate
Helianthus Annuus Extract
Ethylhexylglycerin
Hexylene Glycol
Sodium Phytate
Polysorbate 60
Sorbitan Isostearate
Lecithin
Rosmarinus Officinalis Leaf Extract
Glycine Soja Oil
Lysolecithin
Bacillus Ferment
Citric Acid
Polyglutamic Acid
Beta-Sitosterol
Phytic Acid
Squalene
Phenoxyethanol
Sodium Benzoate
Potassium Sorbate
Water, Dicaprylyl Carbonate, 3-O-Ethyl Ascorbic Acid, Dimethicone, Butylene Glycol, Polyglyceryl-6 Distearate, Ascorbyl Glucoside, Squalane, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Acetyl Sh-Hexapeptide-5 Amide Acetate, Citrullus Lanatus Seed Oil, Hydrogenated Lecithin, Theobroma Cacao Seed Butter, Hydrogenated Phosphatidylcholine, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Sodium Hyaluronate, Oryza Sativa Bran Extract, Propanediol, Jojoba Esters, Tocopherol, Acetyl Zingerone, Cetyl Palmitate, Caprylyl Glycol, Cetyl Alcohol, Polyglyceryl-3 Beeswax, Sodium Hydroxide, Sorbitan Olivate, Sorbitan Palmitate, Helianthus Annuus Extract, Ethylhexylglycerin, Hexylene Glycol, Sodium Phytate, Polysorbate 60, Sorbitan Isostearate, Lecithin, Rosmarinus Officinalis Leaf Extract, Glycine Soja Oil, Lysolecithin, Bacillus Ferment, Citric Acid, Polyglutamic Acid, Beta-Sitosterol, Phytic Acid, Squalene, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate
Cyclopentasiloxane
Zinc Oxide
PEG-12 Dimethicone
PEG/PPG-18/18 Dimethicone
Lauroyl Lysine
Sodium Chloride
Trihydroxystearin
Dimethicone Crosspolymer
Resveratrol
Quercetin
Epigallocatechin Gallate
Tocopheryl Acetate
Tetrahexyldecyl Ascorbate
Adenosine
Bisabolol
Salix Nigra Bark Extract
Punica Granatum Extract
Haematococcus Pluvialis Extract
Hydrolyzed Corn Starch
Polysorbate 80
Hydrated Silica
Triethoxycaprylylsilane
C12-15 Alkyl Benzoate
Isopropyl Titanium Triisostearate
Iron Oxides
Water, Cyclopentasiloxane, Zinc Oxide, PEG-12 Dimethicone, PEG/PPG-18/18 Dimethicone, Lauroyl Lysine, Sodium Chloride, Trihydroxystearin, Dimethicone Crosspolymer, Resveratrol, Quercetin, Epigallocatechin Gallate, Tocopheryl Acetate, Tetrahexyldecyl Ascorbate, Adenosine, Bisabolol, Salix Nigra Bark Extract, Punica Granatum Extract, Haematococcus Pluvialis Extract, Hydrolyzed Corn Starch, Polysorbate 80, Hydrated Silica, Triethoxycaprylylsilane, C12-15 Alkyl Benzoate, Isopropyl Titanium Triisostearate, Caprylyl Glycol, Hexylene Glycol, Ethylhexylglycerin, Iron Oxides, Phenoxyethanol
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Ethylhexylglycerin 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.
Hexylene Glycol is a multitasker ingredient that works as a solvent, humectant, emulsifier, viscosity reducer, and preservative booster.
It is able to dissolve both water and oil-soluble ingredients to stabilize tricky actives and make products spread more easily.
As a humectant, it pulls water into the skin. But it's a pretty minor moisturizing ingredient compared to other humectants, like glycerin.
Interestingly, it can act as a mild penetration enhancer. One in vitro study on human skin found a 12% concentration upped the absorption of mometasone furoate (a medicinal ingredient used to treat inflammatory skin conditions) up to 7%.
This ingredient is typically used at levels of 0.1-10% depending on the role it's playing.
A patch test study on eczema patients didn't find a significant increase in irritation versus the control group, but the potential for irritation rises at higher concentrations.
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
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!