Skin science article
Paula's Choice 2% BHA Lotion Exfoliant Versus CeraVe Hydrating Cream-To-Foam Cleanser
Paula's Choice 2% BHA Lotion Exfoliant Versus CeraVe Hydrating Cream-To-Foam Cleanser This smoothing exfoliator is formulated around Salicylic Acid and Camellia Sinensis Leaf Extract to refine skin texture and refine the look of pores. This mild gel cleanser i
Paula's Choice 2% BHA Lotion Exfoliant Versus CeraVe Hydrating Cream-To-Foam Cleanser
This smoothing exfoliator is formulated around Salicylic Acid and Camellia Sinensis Leaf Extract to refine skin texture and refine the look of pores.
This mild gel cleanser is made to cleanse without leaving your skin tight or dry.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Butylene Glycol
Polysorbate 20
Cetyl Alcohol
Salicylic Acid
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Cyclopentasiloxane
Sorbitan Stearate
Camellia Sinensis Leaf Extract
Lauric Acid
Allantoin
Glycerin
Glycyrrhiza Glabra Root Extract
Avena Sativa Kernel Extract
Epilobium Angustifolium Extract
Dimethicone
Xanthan Gum
Magnesium Aluminum Silicate
PEG-40 Hydrogenated Castor Oil
Sodium Hydroxide
Hexylene Glycol
Disodium EDTA
Ethylhexylglycerin
Phenoxyethanol
Caprylyl Glycol
Water, Butylene Glycol, Polysorbate 20, Cetyl Alcohol, Salicylic Acid, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Cyclopentasiloxane, Sorbitan Stearate, Camellia Sinensis Leaf Extract, Lauric Acid, Allantoin, Glycerin, Glycyrrhiza Glabra Root Extract, Avena Sativa Kernel Extract, Epilobium Angustifolium Extract, Dimethicone, Xanthan Gum, Magnesium Aluminum Silicate, PEG-40 Hydrogenated Castor Oil, Sodium Hydroxide, Hexylene Glycol, Disodium EDTA, Ethylhexylglycerin, Phenoxyethanol, Caprylyl Glycol
Sodium Methyl Cocoyl Taurate
Coco-Betaine
Sodium Cocoyl Isethionate
Sodium Chloride
PCA
PPG-5-Ceteth-20
PEG-100 Stearate
PEG-150 Pentaerythrityl Tetrastearate
PEG-6 Caprylic/Capric Glycerides
PEG-30 Dipolyhydroxystearate
CI 77891
Aspartic Acid
Ceramide NP
Ceramide AP
Ceramide EOP
Sorbitan Isostearate
Carbomer
Glycol Distearate
Glyceryl Stearate
Glyceryl Oleate
Glycine
Trideceth-6
Cetearyl Alcohol
Behentrimonium Methosulfate
Threonine
Sodium PCA
Sodium Lactate
Arginine
Sodium Lauroyl Lactylate
Serine
Sodium Benzoate
Valine
Sodium Hyaluronate
Proline
Isoleucine
Cholesterol
Alanine
Phenylalanine
Coconut Acid
Coco-Glucoside
Chlorphenesin
Hydroxyethyl Urea
Citric Acid
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Phytosphingosine
Histidine
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Polyquaternium-53
Polyquaternium-39
Polysorbate 60
Benzoic Acid
Water, Glycerin, Sodium Methyl Cocoyl Taurate, Coco-Betaine, Sodium Cocoyl Isethionate, Sodium Chloride, PCA, PPG-5-Ceteth-20, PEG-100 Stearate, PEG-150 Pentaerythrityl Tetrastearate, PEG-6 Caprylic/Capric Glycerides, PEG-30 Dipolyhydroxystearate, CI 77891, Aspartic Acid, Ceramide NP, Ceramide AP, Ceramide EOP, Sorbitan Isostearate, Carbomer, Glycol Distearate, Glyceryl Stearate, Glyceryl Oleate, Glycine, Trideceth-6, Cetearyl Alcohol, Behentrimonium Methosulfate, Threonine, Sodium Hydroxide, Salicylic Acid, Sodium PCA, Sodium Lactate, Arginine, Sodium Lauroyl Lactylate, Serine, Sodium Benzoate, Valine, Sodium Hyaluronate, Proline, Isoleucine, Cholesterol, Phenoxyethanol, Alanine, Phenylalanine, Coconut Acid, Coco-Glucoside, Chlorphenesin, Disodium EDTA, Hydroxyethyl Urea, Citric Acid, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Caprylyl Glycol, Phytosphingosine, Xanthan Gum, Histidine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polyquaternium-53, Polyquaternium-39, Polysorbate 60, Ethylhexylglycerin, Benzoic Acid
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.
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).
Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
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.
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.
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.
Salicylic Acid (also known as beta hydroxy acid or BHA) is a well-known ingredient for treating skin that struggles with acne and clogged pores. It exfoliates both the skin's surface and deep within the pores to help clear out buildup, control oil, and reduce inflammation.
Unlike AHAs (alpha hydroxy acids), salicylic acid is oil-soluble. This allows it to penetrate into pores which makes it especially effective for treating blackheads and preventing future breakouts.
Salicylic acid is also known for its soothing properties. It has a similar structure to aspirin and can calm inflamed or irritated skin, making it a good option for acne-prone skin that is also sensitive.
Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.
It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing this ingredient into your routine.
While salicylic acid does not increase sun sensitivity, it’s still important to wear sunscreen daily to protect your skin.
If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
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.