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Updated on June 07, 2024

Overview

What they are

These products are both cruelty-free and reef safe . They have a total of 2 ingredients in common

Suited For

They're both likely to be good for fighting acne

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens or sulfates

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

The Ordinary Azelaic Acid Suspension 10%
acne.org Treatment (Benzoyl Peroxide – 2.5%)
acne.org Treatment (Benzoyl Peroxide – 2.5%)
Facial Treatment
American Brand United States

Ingredient Info

Click any item below to learn more and see relevant ingredients
ph level
4.5

At a glance

Click on any of the items below to learn more

Notable Ingredients

Benefits

Concerns

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Azelaic Acid Suspension 10%
Water Skin Conditioning, Solvent

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.

Isodecyl Neopentanoate Emollient, Skin Conditioning

We don't have a description for Isodecyl Neopentanoate.

Unknown Full details ->
Dimethicone Emollient, Skin Conditioning, Skin Protecting
1 / 0 Silicon Icon
SiliconSilicon Icon

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

1 Com. / 0 Irr.
Very Disliked Full details ->
Azelaic Acid Buffering, Masking
Helps reduce Skin Redness IconGood for Minimizing Pores IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne Icon
5 Benefits

Azelaic acid is a naturally occurring acid derived from grains. This ingredient is effective in treating acne, rosacea, and other skin conditions.

Dimethicone/Bis-Isobutyl Ppg-20 Crosspolymer Emollient

We don't have a description for Dimethicone/Bis-Isobutyl Ppg-20 Crosspolymer.

Unknown Full details ->
Dimethyl Isosorbide Solvent

Dimethyl Isosorbide is a solvent and helps deliver actives into your skin. It is created from sorbitol.

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Emulsion Stabilising

This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.

Disliked Full details ->
Polysilicone-11

We don't have a description for Polysilicone-11.

Disliked Full details ->
Isohexadecane Emollient, Skin Conditioning, Solvent

Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.

Tocopherol Antioxidant, Masking, Skin Conditioning
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation Icon
Vitamin EVitamin E Icon AntioxidantAntioxidant Icon 4 Benefits May cause irritationMay cause irritation Icon

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

0-3 Com. / 0-3 Irr.
Trisodium Ethylenediamine Disuccinate

Trisodium Ethylenediamine Disuccinate is used to help stabilize a product.

Isoceteth-20 Emulsifying
May cause irritation Icon
May cause irritationMay cause irritation Icon

Isoceteth-20 comes from Isocetyl Alcohol. It is an emulsifier. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.

Very Disliked Full details ->
Polysorbate 60 Emulsifying
Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

Polysorbate 60 is used to help stabilize products. It is a surfactant and emulsifier. These properties help keep ingredients together in a product. Surfactants help reduce surface tension between ingredients with different states, such as liquids and solids. Emulsifiers help prevent oils and waters from separating.

Very Disliked Full details ->
Triethanolamine Buffering, Emulsifying, Masking
2 / 0

Triethanolamine is an emulsifier and pH adjuster. It is created using ethylene oxide and ammonia. This gives Triethanolamine a nitrogen core and a similar scent to ammonia.

2 Com. / 0 Irr.
Very Disliked Full details ->
Ethoxydiglycol Humectant, Solvent
0 / 0

Ethoxydiglycol is a synthetic solvent.

0 Com. / 0 Irr.
Phenoxyethanol Preservative
Preservative Icon
PreservativePreservative Icon

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.

Very Disliked Full details ->
Chlorphenesin Antimicrobial, Preservative
Preservative Icon
PreservativePreservative Icon

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.

Disliked Full details ->
Treatment (Benzoyl Peroxide – 2.5%)
Water Skin Conditioning, Solvent

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.

Benzoyl Peroxide
Benzoyl Peroxide IconHelps fight Acne IconCan worsen Dry Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon
Benzoyl PeroxideBenzoyl Peroxide Icon Helps fight AcneHelps fight Acne Icon 4 Concerns

Benzoyl Peroxide is famous for fighting acne. This is because it does a variety of tasks on the skin: it helps reduce excess oil, kill bacteria, and clear out dead skin cells. In other words, it is effective at unclogging pores.

Disliked Full details ->
Butylene Glycol Humectant, Masking, Skin Conditioning
1 / 0

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

1 Com. / 0 Irr.
Carbomer Emulsion Stabilising, Gel Forming
1 / 0

Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.

1 Com. / 0 Irr.
Disliked Full details ->
Potassium Sorbate Preservative
Preservative Icon
PreservativePreservative Icon

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

Disliked Full details ->
Phenoxyethanol Preservative
Preservative Icon
PreservativePreservative Icon

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.

Very Disliked Full details ->
Diazolidinyl Urea Preservative
Preservative IconMay cause irritation IconMay worsen Eczema Icon
PreservativePreservative Icon 2 Concerns

Diazolidinyl Urea is a preservative. It can cause irritation and worsen eczema.

Very Disliked Full details ->
Sodium Hydroxide Buffering

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.

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent
Loved

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. Stay hydrated!

Learn more about Water
Preservative
Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

Ingredient Ratings

Here's what our community thinks of the ingredients in these two products.

Azelaic Acid Suspension 10%
4
3
8
2
liked
mixed
disliked
not rated
Treatment (Benzoyl Peroxide – 2.5%)
1
2
5
liked
mixed
disliked
not rated

When to use

1,875 Routines
42% use in am
58% use in pm
89% use every day
When to use See routines that use it ->
46 Routines
30% use in am
70% use in pm
87% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

The Ordinary Azelaic Acid Suspension 10% 17 ingredients

3.4 /5
from 13 ratings
Pilling (6) Works Well (5) Great Value (4)
Mac_R's avatar

Mac_R

7 months ago · Sensitive Skin
Review

This product has its ups and downs...
Positive: cleans up my closed comedones, affordable.
Negative: Its a little spicy on my sensitive skin and...

This product has its ups and downs...
Positive: cleans up my closed comedones, affordable.
Negative: Its a little spicy on my sensitive skin and pills easily

Would use at night, and use it sparingly. let it FULLY absorb before moisturizer, it will pill and sting if you use another product too soon after

fyr's avatar

fyr

7 months ago · Combination Skin
Review

really really good, helped with my skin texture and closed comedones!! only downside is the extreme pilling so i would recommend using it as the...

really really good, helped with my skin texture and closed comedones!! only downside is the extreme pilling so i would recommend using it as the last step of ur night routine

acne.org Treatment (Benzoyl Peroxide – 2.5%) 8 ingredients

4.0 /5
from 1 rating
Great Value (1) No Scent (1) Works Well (1)
BubbIes's avatar

BubbIes

4 months ago · Combination Skin
Review

Solid benzoyl peroxide product with good ingredients and at a great price. I had some issues with irritation with this, but I'm fairly certain it's...

Solid benzoyl peroxide product with good ingredients and at a great price. I had some issues with irritation with this, but I'm fairly certain it's because I'm sensitive to benzoyl peroxide so I don't blame this product.