What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Benzoyl Peroxide 4%
Water
Skin ConditioningGlycerin
Humectant
Propylene Glycol
Humectant
Cocamidopropyl Hydroxysultaine
Cleansing
Sodium C14-16 Olefin Sulfonate
Cleansing
Xanthan Gum
EmulsifyingPotassium Hydroxide
BufferingCeramide NP
Skin Conditioning
Ceramide AP
Skin Conditioning
Ceramide EOP
Skin Conditioning
Carbomer
Emulsion StabilisingNiacinamide
Smoothing
Glycolic Acid
Buffering
Sodium Chloride
MaskingSodium Citrate
BufferingSodium Hyaluronate
Humectant
Sodium Lauroyl Lactylate
EmulsifyingSodium Hydroxide
BufferingCholesterol
Emollient
Phenoxyethanol
Preservative
Propanediol
Solvent
Citric Acid
Buffering
Tetrasodium EDTA
Diethylhexyl Sodium Sulfosuccinate
CleansingPhytosphingosine
Skin Conditioning
Ethylhexylglycerin
Skin ConditioningBenzoic Acid
Masking
Benzoyl Peroxide 4%, Water, Glycerin, Propylene Glycol, Cocamidopropyl Hydroxysultaine, Sodium C14-16 Olefin Sulfonate, Xanthan Gum, Potassium Hydroxide, Ceramide NP, Ceramide AP, Ceramide EOP, Carbomer, Niacinamide, Glycolic Acid, Sodium Chloride, Sodium Citrate, Sodium Hyaluronate, Sodium Lauroyl Lactylate, Sodium Hydroxide, Cholesterol, Phenoxyethanol, Propanediol, Citric Acid, Tetrasodium EDTA, Diethylhexyl Sodium Sulfosuccinate, Phytosphingosine, Ethylhexylglycerin, Benzoic Acid
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Benzoyl Peroxide (BPO) is one of the most studied and widely used acne-fighting ingredients on the market for over five decades.
It works by releasing oxygen into your pores to kill Cutibacterium acne, or the bacteria closely linked to acne breakouts. This bacteria has a hard time surviving in an oxygen-rich environment.
On top of that, BPO has keratolytic properties to help shed dead skin cells and keep pores from getting clogged.
One of the coolest things about BPO is that bacteria do not develop resistance to it the way they can with antibiotics. That's why dermatologists recommend pairing it with topical antibiotics to keep resistance at bay.
BPO is usually available in 2.5%, 5%, and 10% concentrations. Research has shown that 2.5% tends to be just as effective as the higher strengths while being more gentle on the skin.
The FDA has classified BPO as a safe and effective acne treatment. You'll be able to find this ingredient in over-the-counter products in many countries.
Just so you know, BPO is a known mild irritant. It's common to see dryness, peeling, and some redness when you first start using it. This usually goes away as your skin adjusts.
A very small number of people might develop allergic contact dermatitis from it as patch test studies show positive reactions in about 1-5% of patients.
Once BPO is absorbed into the skin, our bodies turn it into benzoic acid and quickly exits in urine. It's also worth noting that BPO will bleach fabrics and hair, so watch your towels and pillowcases!
Learn more about Benzoyl PeroxideCarbomer is a high-molecular weight polymer of acrylic acid. It is used to form gels and thicken formulas.
Due to its large molecular size, carbomer has minimal skin penetration and is considered an inert ingredient.
A high amount of carbomer can cause pilling or balling up of products. Don't worry, most products contain 1% or less of carbomer.
Learn more about CarbomerCitric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Read more about some other popular AHA's here:
Learn more about Citric AcidGlycerin (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 GlycerinSodium 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
