La Roche-Posay Effaclar Ultra Concentrated Serum Versus The Ordinary Salicylic Acid 2% Solution
Updated on March 04, 2025
Overview
What they are
These products are both reef safe . They have a total of 4 ingredients in common
Cool Features
They both contain AHA and BHA
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin, oily skin, reducing pores, scar healing and better texture
Free From
They both do not contain any common allergens, 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
La Roche-Posay Effaclar Ultra Concentrated Serum 19 ingredients
The Ordinary Salicylic Acid 2% Solution 11 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
La Roche-Posay Effaclar Ultra Concentrated Serum 19 ingredients
The Ordinary Salicylic Acid 2% Solution 11 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAlcohol Denat.
Antimicrobial
Propanediol
Solvent
Glycolic Acid
Buffering
Niacinamide
Smoothing
Dimethyl Isosorbide
SolventPentylene Glycol
Skin ConditioningSalicylic Acid
Masking
Sodium Hydroxide
BufferingPEG-60 Hydrogenated Castor Oil
Emulsifying
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingCitric Acid
Buffering
PEG-30 Glyceryl Cocoate
Emulsifying
Capryloyl Salicylic Acid
Exfoliating
Biosaccharide Gum-1
Skin Conditioning
Maltodextrin
Absorbent
Phytic Acid
Polyquaternium-10
Parfum
Masking
Water, Alcohol Denat., Propanediol, Glycolic Acid, Niacinamide, Dimethyl Isosorbide, Pentylene Glycol, Salicylic Acid, Sodium Hydroxide, PEG-60 Hydrogenated Castor Oil, Hydroxyethylpiperazine Ethane Sulfonic Acid, Citric Acid, PEG-30 Glyceryl Cocoate, Capryloyl Salicylic Acid, Biosaccharide Gum-1, Maltodextrin, Phytic Acid, Polyquaternium-10, Parfum
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidSalicylic Acid (also known as beta hydroxy acid or BHA) is a well-known ingredient for treating skin that struggles with acne and clogged pores. It exfoliates both the skin's surface and deep within the pores to help clear out buildup, control oil, and reduce inflammation.
Unlike AHAs (alpha hydroxy acids), salicylic acid is oil-soluble. This allows it to penetrate into pores which makes it especially effective for treating blackheads and preventing future breakouts.
Salicylic acid is also known for its soothing properties. It has a similar structure to aspirin and can calm inflamed or irritated skin, making it a good option for acne-prone skin that is also sensitive.
Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.
It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing this ingredient into your routine.
While salicylic acid does not increase sun sensitivity, it’s still important to wear sunscreen daily to protect your skin.
If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
Learn more about Salicylic 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. Stay hydrated!
Learn more about WaterIngredient Ratings
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When to use
La Roche-Posay Effaclar Ultra Concentrated Serum 19 ingredients
The Ordinary Salicylic Acid 2% Solution 11 ingredients
Reviews
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