Clinique Moisture Surge™ 100-Hour Auto-Replenishing Hydrator Versus Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50
Updated on April 17, 2025
Overview
Cool Features
They both contain Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores and scar healing
Free From
They both do not contain any oils, parabens or sulfates
What's Inside
They both contain fragrances and silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Clinique Moisture Surge™ 100-Hour Auto-Replenishing Hydrator 43 ingredients
Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 29 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Clinique Moisture Surge™ 100-Hour Auto-Replenishing Hydrator 43 ingredients
Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 29 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDimethicone
Emollient
Butylene Glycol
Humectant
Glycerin
Humectant
Trisiloxane
Skin Conditioning
Trehalose
Humectant
Sucrose
Humectant
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Hydroxyethyl Urea
Humectant
Camellia Sinensis Leaf Extract
Antimicrobial
Silybum Marianum Extract
Skin ConditioningBetula Alba Bark Extract
Masking
Saccharomyces Lysate Extract
Humectant
Aloe Barbadensis Leaf Water
MaskingAloe Barbadensis Leaf Extract
Emollient
Thermus Thermophillus Ferment
Skin ConditioningCaffeine
Skin Conditioning
Sorbitol
Humectant
Palmitoyl Hexapeptide-12
Skin Conditioning
Sodium Hyaluronate
Humectant
Caprylyl Glycol
EmollientOleth-10
EmulsifyingSodium Polyaspartate
HumectantAloe Barbadensis Leaf Polysaccharides
Emollient
Lactobacillus Ferment Lysate
Skin Conditioning
Saccharide Isomerate
Humectant
Hydrogenated Lecithin
Emulsifying
Tocopheryl Acetate
Antioxidant
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingGlyceryl Polymethacrylate
Tromethamine
BufferingPEG-8
HumectantHexylene Glycol
EmulsifyingMagnesium Ascorbyl Phosphate
Antioxidant
Citric Acid
Buffering
BHT
Antioxidant
Disodium EDTA
Sodium Citrate
BufferingPotassium Sorbate
Preservative
Sodium Benzoate
Masking
Phenoxyethanol
Preservative
CI 14700
Cosmetic ColorantCI 19140
Cosmetic ColorantWater, Dimethicone, Butylene Glycol, Glycerin, Trisiloxane, Trehalose, Sucrose, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Hydroxyethyl Urea, Camellia Sinensis Leaf Extract, Silybum Marianum Extract, Betula Alba Bark Extract, Saccharomyces Lysate Extract, Aloe Barbadensis Leaf Water, Aloe Barbadensis Leaf Extract, Thermus Thermophillus Ferment, Caffeine, Sorbitol, Palmitoyl Hexapeptide-12, Sodium Hyaluronate, Caprylyl Glycol, Oleth-10, Sodium Polyaspartate, Aloe Barbadensis Leaf Polysaccharides, Lactobacillus Ferment Lysate, Saccharide Isomerate, Hydrogenated Lecithin, Tocopheryl Acetate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Glyceryl Polymethacrylate, Tromethamine, PEG-8, Hexylene Glycol, Magnesium Ascorbyl Phosphate, Citric Acid, BHT, Disodium EDTA, Sodium Citrate, Potassium Sorbate, Sodium Benzoate, Phenoxyethanol, CI 14700, CI 19140
Butyl Methoxydibenzoylmethane 2%
UV Absorber
Ethylhexyl Methoxycinnamate 7.5%
UV Absorber
Ethylhexyl Salicylate 5%
UV Absorber
Octocrylene 2%
UV Absorber
Water
Skin ConditioningGlycerin
Humectant
Silica
Abrasive
Dimethicone
Emollient
Tocopherol
Antioxidant
Chamomilla Recutita Flower Extract
Masking
Vitis Vinifera Seed Extract
Antimicrobial
Camellia Sinensis Leaf Extract
Antimicrobial
Camellia Oleifera Leaf Extract
AstringentPeucedanum Graveolens Extract
TonicSambucus Nigra Fruit Extract
AstringentAvena Sativa Bran Extract
Abrasive
Punica Granatum Extract
AstringentLycium Barbarum Fruit Extract
Astringent
Hydrogenated Lecithin
Emulsifying
Titanium Dioxide
Cosmetic Colorant
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin ConditioningDiethylhexyl Syringylidenemalonate
Skin ProtectingHydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingXanthan Gum
EmulsifyingSodium Carbomer
Emulsion StabilisingBenzyl Alcohol
Perfuming
Sodium Benzoate
Masking
Potassium Sorbate
Preservative
Phenoxyethanol
Preservative
Butyl Methoxydibenzoylmethane 2%, Ethylhexyl Methoxycinnamate 7.5%, Ethylhexyl Salicylate 5%, Octocrylene 2%, Water, Glycerin, Silica, Dimethicone, Tocopherol, Chamomilla Recutita Flower Extract, Vitis Vinifera Seed Extract, Camellia Sinensis Leaf Extract, Camellia Oleifera Leaf Extract, Peucedanum Graveolens Extract, Sambucus Nigra Fruit Extract, Avena Sativa Bran Extract, Punica Granatum Extract, Lycium Barbarum Fruit Extract, Hydrogenated Lecithin, Titanium Dioxide, Dimethicone/Vinyl Dimethicone Crosspolymer, Diethylhexyl Syringylidenemalonate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xanthan Gum, Sodium Carbomer, Benzyl Alcohol, Sodium Benzoate, Potassium Sorbate, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. Stay hydrated!
Learn more about WaterDimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinCamellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.
This ingredient has many skin benefits:
This ingredient contains polyphenols, a strong antioxidant. Antioxidants help fight off molecules that damage skin cells.
On top of that, the antioxidants in green tea neutralize free-radicals from the sun. This gives the skin some extra UV protection, but should not replace sunscreen.
Many components of tea have anti-inflammatory properties.
Polyphenols and L-theanine help soothe the skin and reduce irritation. The caffeine in Camellia Sinensis Leaf Extract helps calm inflamed blood vessels.
Other compounds found in tea include: Vitamin Bs, linoleic acid, magnesium, calcium, iron, and zinc.
Research has shown both drinking Camellia Sinensis Leaf Tea and applying it to the skin can help boost skin elasticity and hydration. Studies also show using tea extract may reduce sebum, or oil, production.
Learn more about Camellia Sinensis Leaf ExtractHydrogenated Lecithin is created from the hydrogenation of lecithin (a group of phospholipids). Hydrogenation is a chemical reaction between hydrogen and another element.
This ingredient is an emollient and emulsifier. As an emollient, it helps soften skin by trapping moisture within. As an emulsifier, it prevents oil and water ingredients from separating.
Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateSodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoatePhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Clinique Moisture Surge™ 100-Hour Auto-Replenishing Hydrator 43 ingredients
Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 29 ingredients
Reviews
Here's what our community thinks
Clinique Moisture Surge™ 100-Hour Auto-Replenishing Hydrator 43 ingredients
Clinique Moisture Surge 100H Auto-Replenishing Hydrator
My skin type: Dry, sensitive, eczema and redness-prone.
How long have I been using it? Two months.
Rating: 4.5 out of 5 stars.
Pros:
- Highly moisturizing, it does exactly what it promises
- Very light, pleasant gel-like texture, absorbs easily into the skin
- Excellent as a makeup base
- Allergy tested and fragrance-free, it did not Show more
I am soooo dry, but can’t use oil because of my acne, this solves both these issues. It leaves me glowing ✨
Paula's Choice Resist Youth-Extending Daily Hydrating Fluid SPF 50 29 ingredients
Gave me CC. Idk why app its not showing but it contains more that 8 ingredients with oil. The application was nice, I really enjoued it until i strated noticing closed comedones all over my face.
I actually LOVED this product, when I would use it, it left my skin feeling hydrated, glowing and soft. It absorbs quickly with little to no white cast. But after a month I started to experience SEVERE skin reactions around my eyes, such as stinging, redness and puffiness, I didn’t realize this sunscreen contains alcohol. I wanted to keep using it especially with its high SPF protection but my Show more
