Paula's Choice Hydralight One Step Face Cleanser Versus Paula's Choice Defense Hydrating Gel-To-Cream Cleanser
This mild gel cleanser is made to cleanse without leaving your skin tight or dry.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Sodium Laureth Sulfate
Cleansing
Sodium PCA
Humectant
Sodium Lactate
Buffering
Glycine
Buffering
Fructose
Humectant
Urea
Buffering
Niacinamide
Smoothing
Inositol
Humectant
Lactic Acid
Buffering
Allantoin
Skin Conditioning
Sodium Hyaluronate
Humectant
PEG-7 Glyceryl Cocoate
Emulsifying
Sodium Methyl Cocoyl Taurate
Cleansing
Xanthan Gum
EmulsifyingTriethanolamine
BufferingCarbomer
Emulsion StabilisingBenzophenone-3
UV Absorber
Sodium Hydroxymethylglycinate
Preservative
Propylparaben
Preservative
Methylparaben
Preservative
Sodium Benzoate
Masking
Water, Glycerin, Sodium Laureth Sulfate, Sodium PCA, Sodium Lactate, Glycine, Fructose, Urea, Niacinamide, Inositol, Lactic Acid, Allantoin, Sodium Hyaluronate, PEG-7 Glyceryl Cocoate, Sodium Methyl Cocoyl Taurate, Xanthan Gum, Triethanolamine, Carbomer, Benzophenone-3, Sodium Hydroxymethylglycinate, Propylparaben, Methylparaben, Sodium Benzoate
Water
Skin ConditioningSodium Cocoyl Glycinate
Cleansing
Cocamidopropyl Hydroxysultaine
Cleansing
Sodium Lauroamphoacetate
CleansingCocamidopropyl Betaine
Cleansing
Glycerin
Humectant
Sorbeth-230 Tetraoleate
Emulsifying
Decyl Glucoside
Cleansing
Pentylene Glycol
Skin Conditioning
Sodium Chloride
MaskingDisodium Cocoyl Glutamate
Cleansing
Lauric Acid
Cleansing
Lactic Acid
Buffering
Sodium Lauroyl Oat Amino Acids
CleansingSorbitan Laurate
Emulsifying
Sodium Cocoyl Glutamate
Cleansing
Disodium EDTA
ChelatingAloe Barbadensis Leaf Juice Powder
Skin Conditioning
Caprylic/Capric Triglyceride
Masking
Cocoyl Proline
Skin Conditioning
Sodium Citrate
BufferingCamellia Sinensis Leaf Extract
Antimicrobial
Glycyrrhiza Glabra Root
Skin ConditioningSodium PCA
Humectant
Sodium Lactate
Buffering
Arginine
Masking
Glycine Soja Sterols
Emollient
Linoleic Acid
Cleansing
Phospholipids
Skin Conditioning
Aspartic Acid
Masking
PCA
Humectant
Glycine
Buffering
Alanine
Masking
Serine
Masking
Valine
MaskingIsoleucine
Skin ConditioningProline
Skin Conditioning
Threonine
Potassium Citrate
BufferingLactoperoxidase
StabilisingHistidine
Humectant
Phenylalanine
Masking
Glucose Oxidase
StabilisingCitric Acid
Buffering
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningPotassium Sorbate
Preservative
Sodium Benzoate
Masking
Water, Sodium Cocoyl Glycinate, Cocamidopropyl Hydroxysultaine, Sodium Lauroamphoacetate, Cocamidopropyl Betaine, Glycerin, Sorbeth-230 Tetraoleate, Decyl Glucoside, Pentylene Glycol, Sodium Chloride, Disodium Cocoyl Glutamate, Lauric Acid, Lactic Acid, Sodium Lauroyl Oat Amino Acids, Sorbitan Laurate, Sodium Cocoyl Glutamate, Disodium EDTA, Aloe Barbadensis Leaf Juice Powder, Caprylic/Capric Triglyceride, Cocoyl Proline, Sodium Citrate, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root, Sodium PCA, Sodium Lactate, Arginine, Glycine Soja Sterols, Linoleic Acid, Phospholipids, Aspartic Acid, PCA, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Potassium Citrate, Lactoperoxidase, Histidine, Phenylalanine, Glucose Oxidase, Citric Acid, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate, Sodium Benzoate
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
Learn more about GlycerinGlycine is the smallest amino acid and a key building block of collagen. It's part if your skin's Natural Moisturizing Factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.
A study from 2022 found that an amino acid complex featuring taurine, arginine, and glycine significantly reduced skin irritation, improved redness, and accelerated the skin repair process.
Lactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective.
Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin.
Because lactic acid molecules are larger than glycolic acid, they don’t penetrate as deeply. This means they’re less likely to sting or irritate, making it a great choice for beginners or those with sensitive skin.
Like glycolic acid, it can:
Lactic acid also acts as a humectant (like hyaluronic acid). It can draw water into the skin to improve hydration and also plays a role in the skin's natural moisturizing factor (NMF) in the form of sodium lactate.
Studies show it can boost ceramide production to strengthen the skin barrier and even help balance the skin’s microbiome.
To get results, choose products with a pH between 3-4.
Lower strengths (5-12%) focus on surface exfoliation; higher strengths (12% and up) can reach deeper in the dermis (deeper, supportive layer) to improve skin texture and firmness over time.
Though it was originally derived from milk, most modern lactic acid used in skincare is vegan. It is made through non-dairy fermentation to create a bio-identical and stable form suitable for all formulations.
When lactic acid shows up near the end of an ingredient list, it usually means the brand added just a tiny amount to adjust the product’s pH.
Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles.
Lactic acid is truly a gentle multitasker: it exfoliates, hydrates, strengthens, and brightens. It's a great ingredient for giving your skin a smooth, glowing, and healthy look without the harshness of stronger acids.
Read more about some other popular AHA's here:
Learn more about Lactic AcidSodium 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 BenzoateSodium Lactate is the sodium salt of lactic acid, an AHA. It is a humectant and sometimes used to adjust the pH of a product.
This ingredient is part of our skin's NMF, or natural moisturizing factor. Our NMF is essential for the hydration of our top skin layers and plasticity of skin. NMF also influences our skin's natural acid mantle and pH, which protects our skin from harmful bacteria.
High percentages of Sodium Lactate can have an exfoliating effect.
Fun fact: Sodium Lactate is produced from fermented sugar.
Learn more about Sodium LactateSodium PCA (the salt of PCA) is one of the most well-established humectants in skincare.
Why is it so special? Your skin already makes it naturally; it's a natural component of your skin's Natural Moisturizing Factor (NMF), or the mix of water-binding compounds inside your skin cells that keeps things soft and hydrated.
As a cosmetic ingredient, it grabs water and holds it in the upper layers of skin to smooth roughness and ease dehydration.
There's some clinical support for the NMF approach with a study showing that a cream built to mimic the skin's NMF significantly boosted hydration.
Safety-wise, this ingredient non-irritating, non-comedogenic, and non-phototoxic in testing, with minimal skin absorption.
It also works really well with other hydrators like glycerin or hyaluronic acid, and typical usage is somewhere between 0.2-4%.
Learn more about Sodium PCAWater. 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!
Learn more about Water
