Kate Somerville ExfoliKate® Cleanser Daily Foaming Wash Versus SkinCeuticals Glycolic Renewal Cleanser
This glycolic acid cream cleanser is formulated around Glycolic Acid to exfoliate and smooth skin.
This salicylic acid gel cleanser is formulated around Salicylic Acid to clear breakouts and unclog pores.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningStearic Acid
CleansingSodium Cocoyl Glycinate
CleansingLauramidopropyl Betaine
CleansingGlycerin
HumectantHydroxypropyl Starch Phosphate
Cetearyl Phosphate
Skin ConditioningXylitylglucoside
HumectantDimethicone PEG-8 Meadowfoamate
EmollientAnhydroxylitol
HumectantXylitol
HumectantLeuconostoc/Radish Root Ferment Filtrate
AntimicrobialBromelain
Skin ConditioningPapain
Skin ConditioningLactobacillus/Pumpkin Fruit Ferment Filtrate
Skin ConditioningLauramide Dipa
Emulsion StabilisingAloe Barbadensis Leaf Juice Powder
Skin ConditioningLactic Acid
BufferingGlycolic Acid
BufferingCitrus Aurantium Bergamia Fruit Oil
MaskingAniba Rosaeodora Wood Extract
MaskingCitrus Aurantium Dulcis Peel Oil
MaskingGlucose
HumectantPelargonium Graveolens Flower Oil
MaskingCitral
PerfumingBenzyl Benzoate
AntimicrobialBenzyl Alcohol
PerfumingSodium Hydroxide
BufferingLimonene
PerfumingChlorphenesin
AntimicrobialLinalool
PerfumingCitronellol
PerfumingMaltodextrin
AbsorbentGeraniol
PerfumingCI 75810
Cosmetic ColorantWater, Stearic Acid, Sodium Cocoyl Glycinate, Lauramidopropyl Betaine, Glycerin, Hydroxypropyl Starch Phosphate, Cetearyl Phosphate, Xylitylglucoside, Dimethicone PEG-8 Meadowfoamate, Anhydroxylitol, Xylitol, Leuconostoc/Radish Root Ferment Filtrate, Bromelain, Papain, Lactobacillus/Pumpkin Fruit Ferment Filtrate, Lauramide Dipa, Aloe Barbadensis Leaf Juice Powder, Lactic Acid, Glycolic Acid, Citrus Aurantium Bergamia Fruit Oil, Aniba Rosaeodora Wood Extract, Citrus Aurantium Dulcis Peel Oil, Glucose, Pelargonium Graveolens Flower Oil, Citral, Benzyl Benzoate, Benzyl Alcohol, Sodium Hydroxide, Limonene, Chlorphenesin, Linalool, Citronellol, Maltodextrin, Geraniol, CI 75810
Water
Skin ConditioningGlycolic Acid
BufferingCoco-Glucoside
CleansingPropylene Glycol
HumectantAmmonium Polyacryloyldimethyl Taurate
Emulsion StabilisingGlycerin
HumectantSodium Methyl Cocoyl Taurate
CleansingSodium Hydroxide
BufferingAloe Barbadensis Leaf Juice
Skin ConditioningPhytic Acid
Sodium Chloride
MaskingPhenoxyethanol
PreservativeDipropylene Glycol
HumectantCoconut Acid
CleansingCaprylyl Glycol
EmollientSalicylic Acid
MaskingChlorphenesin
AntimicrobialEthylhexylglycerin
Skin ConditioningBoswellia Serrata Gum
MaskingCymbopogon Schoenanthus Oil
MaskingCitral
PerfumingCitric Acid
BufferingPotassium Sorbate
PreservativeSodium Benzoate
MaskingTocopherol
AntioxidantWater, Glycolic Acid, Coco-Glucoside, Propylene Glycol, Ammonium Polyacryloyldimethyl Taurate, Glycerin, Sodium Methyl Cocoyl Taurate, Sodium Hydroxide, Aloe Barbadensis Leaf Juice, Phytic Acid, Sodium Chloride, Phenoxyethanol, Dipropylene Glycol, Coconut Acid, Caprylyl Glycol, Salicylic Acid, Chlorphenesin, Ethylhexylglycerin, Boswellia Serrata Gum, Cymbopogon Schoenanthus Oil, Citral, Citric Acid, Potassium Sorbate, Sodium Benzoate, Tocopherol
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Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.
Chlorphenesin is a biocide. This means it is able to help fight the microorganisms on our skin. It is also able to fight odor-releasing bacteria.
Chlorphenesin is soluble in both water and glycerin.
Studies show Chlorphenesin is easily absorbed by our skin. You should speak with a skincare professional if you have concerns about using Chlorphenesin.
Learn more about ChlorphenesinCitral is the molecule responsible for the fresh lemon scent in lemon, lime, and lemongrass. It is a fragrance ingredient that can be created from plant essential oils or synthetically.
Though Citral has documented antimicrobial activity against acne bacteria (which is where the marketing claims about it being good for acne-prone skin originate), real formulas use it at fragrance-level concentrations under 1% so there's likely no skin benefit.
You should know this ingredient is a known EU fragrance allergen.
Animal studies classifies this ingredient as a weak-to-moderate skin sensitizer and clinical patch testing on eczema patients confirmed it to be both a contact allergen and irritant.
The term 'citral' is a collective term for two geometric isomers: geranial/Citral A and neral/Citral B.
The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.
Learn more about CitralGlycerin (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 GlycerinGlycolic Acid is arguably the most famous alpha hydroxy acid (AHA) with tons of research backing its benefits.
It is found naturally in sugar cane but the form used in skincare is usually synthetic for purity and stability.
Glycolic acid removes the top layer of dead skin cells to allow newer and fresher ones to emerge.
AHAs work by breaking down the structural “glue” that holds old skin cells in place. When that buildup is gone, your skin can renew itself more efficiently.
Research also shows glycolic acid stimulates collagen production, helping to firm and thicken the skin over time. This is one of its biggest advantages over other AHAs.
Overall, glycolic acid helps with:
Fun fact: Glycolic acid boosts skin hydration by helping it produce molecules that increase hyaluronic acid naturally.
To work best, glycolic acid products should have a pH between 3-4 (that’s where exfoliation is most effective but still gentle on skin).
The pH and concentration of a product are key to its effectiveness:
It is normal to feel a slight stinging sensation when using glycolic acid. This usually fades as your skin adjusts.
Because glycolic acid has the smallest molecular size in the AHA family, it can penetrate deeper, which enhances its effectiveness but also makes it more likely to irritate sensitive skin.
If your skin is very sensitive or prone to rosacea, glycolic acid may be too strong; in that case, try milder options like lactic acid or a PHA instead.
Recent studies suggest glycolic acid might even help protect against UV damage. But don’t skip sunscreen! Freshly exfoliated skin is more sensitive to the sun.
Glycolic acid is a skincare superstar. It smooths, brightens, hydrates, and firms the skin. Unless you’re highly sensitive, it’s well worth adding to your routine.
Read more about some other popular AHA's here:
Learn more about Glycolic AcidSodium 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.
Learn more about Sodium HydroxideWater. 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