What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Benzoyl Peroxide 2.5%
Water
Skin ConditioningEthoxydiglycol
HumectantCyclotetrasiloxane
EmollientCyclopentasiloxane
EmollientPropylene Glycol
HumectantCetearyl Alcohol
EmollientDimethicone
EmollientGlyceryl Stearate
EmollientPEG-100 Stearate
SurfactantPanthenol
Skin ConditioningAllantoin
Skin ConditioningXanthan Gum
EmulsifyingCeteareth-20
CleansingCarbomer
Emulsion StabilisingSodium Hydroxide
BufferingDiazolidinyl Urea
PreservativeMethylparaben
PreservativePropylparaben
PreservativeParfum
MaskingBenzoyl Peroxide 2.5%, Water, Ethoxydiglycol, Cyclotetrasiloxane, Cyclopentasiloxane, Propylene Glycol, Cetearyl Alcohol, Dimethicone, Glyceryl Stearate, PEG-100 Stearate, Panthenol, Allantoin, Xanthan Gum, Ceteareth-20, Carbomer, Sodium Hydroxide, Diazolidinyl Urea, Methylparaben, Propylparaben, Parfum
Water
Skin ConditioningCyclomethicone
EmollientCetyl Ethylhexanoate
EmollientGlycerin
HumectantCetyl Ricinoleate
EmollientStearyl Alcohol
EmollientGlyceryl Stearate
EmollientPEG-100 Stearate
SurfactantMethyl Methacrylate
Glycol Dimethacrylate Crosspolymer
Lysine Carboxymethyl Cysteinate
Skin ConditioningLysine Thiazolidine Carboxylate
Skin ConditioningTocopherol
AntioxidantSilica
AbrasiveXanthan Gum
EmulsifyingMethylparaben
PreservativePropylparaben
PreservativeDiazolidinyl Urea
PreservativeBenzalkonium Chloride
AntimicrobialWater, Cyclomethicone, Cetyl Ethylhexanoate, Glycerin, Cetyl Ricinoleate, Stearyl Alcohol, Glyceryl Stearate, PEG-100 Stearate, Methyl Methacrylate, Glycol Dimethacrylate Crosspolymer, Lysine Carboxymethyl Cysteinate, Lysine Thiazolidine Carboxylate, Tocopherol, Silica, Xanthan Gum, Methylparaben, Propylparaben, Diazolidinyl Urea, Benzalkonium Chloride
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Diazolidinyl Urea is an antimicrobial preservative. It is commonly used to prevent bacterial, yeast, and mold growth.
Diazolidinyl Urea slowly breaks down into formaldehyde, an effective microbe killer but also a known allergen/carcinogen.
Some people who are allergic to imidazolidinyl urea also react to diazolidinyl urea. It ranked as the 14th most common allergen in patch tests from 2005–06.
Safety reviews show that at concentrations under 0.5%, the formaldehyde released remains below the accepted safety limit, making it considered safe for cosmetic use.
Ultimately, its safety depends on individual skin sensitivity and personal comfort with formaldehyde-releasing preservatives.
Learn more about Diazolidinyl UreaGlyceryl Stearate is made by reacting glycerin with stearic acid (typically sourced from plant oils like palm or coconut). It's an emulsifier, emollient, and mild occlusive.
Emulsifiers help ingredients like oil and water stay mixed so your formula stays nicely blended and uniform in texture.
This ingredient is typically used in concentrations between 1-10%. Studies have found it to be non-sensitizing, non-phototoxic, and non-photoallergenic.
A close cousin of this ingredient is Glyceryl Stearate SE ("self-emulsifying"). This just has a small amount of sodium or potassium stearate added so it can emulsify without a co-emulsifier.
Since this ingredient is an ester of a C18 fatty acid, it may not be fungal acne safe. The Malassezia yeast can potentially metabolize within the C11-C24 range.
Fun fact: The human body also creates Glyceryl Stearate naturally.
Learn more about Glyceryl StearateMethylparaben is a synthetic preservative and one of the most widely used in the world. It has a simple, but important job: prevent your products from going bad by stopping bacteria, yeast, and mold from growing.
Typical use levels are low, often 0.1-0.3%.
This is also one of the most heavily studied preservatives out there and major regulatory bodies have repeatedly given it the green light.
In 2023, the EU's Scientific Committee on Consumer Safety (SCCS) confirmed that this ingredient is safe up to 0.4% on its own, of up to 0.8% when mixed with other paraben esters.
Here's the science behind the noise behind parabens/hormones as well:
Methylparaben shows very weak estrogen-like activity in vitro tests (more than 1,000x weaker than your body's own estradiol). In vivo (live-organism) studies don't support a meaningful endocrine-disrupting effect either.
You get a stronger estrogenic effect from eating tofu, actually.
It's also a low sensitizer and allergic reactions are uncommon; they usually happen on damage or broken skin.
There is a caveat: France has proposed to formally re-examine its endocrine classification in 2025 so the regulatory conversation isn't fully closed as of yet.
But as it stands today, this ingredient is considered safe at permitted levels.
Learn more about MethylparabenPeg-100 Stearate is an emollient and emulsifier. As an emollient, it helps keep skin soft by trapping moisture in. On the other hand, emulsifiers help prevent oil and water from separating in a product.
PEGS are a hydrophilic polyether compound . There are 100 ethylene oxide monomers in Peg-100 Stearate. Peg-100 Stearate is polyethylene glycol ester of stearic acid.
Propylparaben is a preservative and one of the most widely used members of the paraben family (it's been used in cosmetics for over a century now).
It works by disrupting microbial cell membranes and enzymes, and is a broad-spectrum protector that works exceptionally well against molds, yeasts, and gram-positive bacteria.
You'll likely see it paired with methylparaben to cover the full range (including gram-negative bacteria).
This ingredient is effective at low concentrations (~0.2-0.5%) and stable across a wide pH range (4.5-7.5 pH). It's effectiveness drops off above pH 8 and it can lose potency when combined with non-ionic surfactants like polysorbate 80 due to micellization.
The regulatory bodies have concluded this ingredient to be safe as used in cosmetics. The EU has capped it at 0.14% and combined parabens are not to exceed 0.8%.
While parabens do cross the stratum corneum, only about 1% remains for absorption into the body. This is because most of it is metabolized within living skin.
Learn more about PropylparabenWater. 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 WaterXanthan 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.
Learn more about Xanthan Gum