Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Paula's Choice Super Hydrate Overnight Mask Versus Kiehl's Ultra Facial Overnight Hydrating Face Mask With 10.5% Squalane

Paula's Choice Super Hydrate Overnight Mask Versus Kiehl's Ultra Facial Overnight Hydrating Face Mask With 10.5% Squalane Detailed comparison of Paula's Choice Super Hydrate Overnight Mask versus Kiehl's Ultra Facial Overnight Hydrating Face Mask With 10.5% Sq

This source-based comparison does not add ratings or recommend a winner.

Paula's Choice Super Hydrate Overnight Mask Versus Kiehl's Ultra Facial Overnight Hydrating Face Mask With 10.5% Squalane Detailed comparison of Paula's Choice Super Hydrate Overnight Mask versus Kiehl's Ultra Facial Overnight Hydrating Face Mask With 10.5% Squalane. This hydrating overnight mask is formulated around Chondrus Crispus Extract and Ganoderma Lucidum Extract to hydrate skin and calm redness. This hydrating overnight mask is formulated around Squalane and Pseudoalteromonas Ferment Extract to hydrate skin and strengthen the skin barrier. Water Butylene Glycol Dimethicone Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Chondrus Crispus Extract Rubus Chamaemorus Fruit Extract Ganoderma Lucidum Extract Glycerin Butyrospermum Parkii Butter Hydrogenated Lecithin Pentapeptide-59 Ginkgo Biloba Leaf Extract Terminalia Chebula Fruit Extract Cassia Angustifolia Seed Polysaccharide Vaccinium Vitis-Idaea Fruit Extract Sambucus Nigra Fruit Extract Schisandra Chinensis Fruit Extract Rhodiola Rosea Root Extract Glycyrrhiza Glabra Root Extract Linum Usitatissimum Seed Oil Pelvetia Canaliculata Extract Agastache Mexicana Flower/Leaf/Stem Extract Betula Alba Juice Echium Plantagineum Seed Oil Xanthan Gum Synthetic Fluorphlogopite Myristamidopropyl Pg-Dimonium Chloride Phosphate Lauroyl Lysine Propanediol Phenoxyethanol Ethylhexylglycerin Potassium Sorbate Water, Butylene Glycol, Dimethicone, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Chondrus Crispus Extract, Rubus Chamaemorus Fruit Extract, Ganoderma Lucidum Extract, Glycerin, Butyrospermum Parkii Butter, Hydrogenated Lecithin, Pentapeptide-59, Ginkgo Biloba Leaf Extract, Terminalia Chebula Fruit Extract, Cassia Angustifolia Seed Polysaccharide, Vaccinium Vitis-Idaea Fruit Extract, Sambucus Nigra Fruit Extract, Schisandra Chinensis Fruit Extract, Rhodiola Rosea Root Extract, Glycyrrhiza Glabra Root Extract, Linum Usitatissimum Seed Oil, Pelvetia Canaliculata Extract, Agastache Mexicana Flower/Leaf/Stem Extract, Betula Alba Juice, Echium Plantagineum Seed Oil, Xanthan Gum, Synthetic Fluorphlogopite, Myristamidopropyl Pg-Dimonium Chloride Phosphate, Lauroyl Lysine, Propanediol, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate Lauryl Laurate Squalane Isononyl Isononanoate Behenyl Behenate Sorbitan Olivate Sorbitan Stearate Polyhydroxystearic Acid Candelilla Cera Euphorbia Cerifera Cera Sodium Polyacrylate Chlorphenesin Pseudoalteromonas Ferment Extract Salicylic Acid Sodium Hydroxide Water, Lauryl Laurate, Squalane, Isononyl Isononanoate, Behenyl Behenate, Sorbitan Olivate, Sorbitan Stearate, Polyhydroxystearic Acid, Candelilla Cera, Euphorbia Cerifera Cera, Propanediol, Phenoxyethanol, Sodium Polyacrylate, Chlorphenesin, Ethylhexylglycerin, Pseudoalteromonas Ferment Extract, Salicylic Acid, Sodium Hydroxide These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. 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. 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. 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!