The Ordinary Salicylic Acid 2% Solution Versus acne.org Treatment (Benzoyl Peroxide – 2.5%)
Updated on March 04, 2025
Overview
What they are
These products are both cruelty-free and reef safe . They have a total of 3 ingredients in common
Suited For
They're both likely to be good for fighting acne and dry skin
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones 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.
Ingredient Info
The Ordinary Salicylic Acid 2% Solution 11 ingredients
acne.org Treatment (Benzoyl Peroxide – 2.5%) 8 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
The Ordinary Salicylic Acid 2% Solution 11 ingredients
acne.org Treatment (Benzoyl Peroxide – 2.5%) 8 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
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.
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. Stay hydrated!
Learn more about WaterIngredient Ratings
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When to use
The Ordinary Salicylic Acid 2% Solution 11 ingredients
acne.org Treatment (Benzoyl Peroxide – 2.5%) 8 ingredients
Reviews
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