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, 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
About this product
About this product
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
SolventGlycolic 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 ConditioningMaltodextrin
AbsorbentPhytic 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.
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 WaterSalicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.
This multitasking property makes it a great ingredient for cleaning out pores, controlling oil production, and reducing inflammation.
Unlike AHAs which are water soluble, Salicylic Acid is oil soluble. This means that it's able to exfoliate the inside of pores and reduce blackheads.
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 a Salicylic Acid into your routine.
In general, Salicylic Acid is a great ingredient for oily acne-prone skin.
While salicylic acid does not increase sun-sensitivity, we still recommend wearing SPF.
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 HydroxideCitric 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 AcidIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
La Roche-Posay Effaclar Ultra Concentrated Serum 19 ingredients
The Ordinary Salicylic Acid 2% Solution 11 ingredients
Reviews
Here's what our community thinks
La Roche-Posay Effaclar Ultra Concentrated Serum 19 ingredients
This product was horrible for me! First I got it recommended by a pharmacist for my face, but back then it was too tingly and I stopped using it. Now because I’ve gotten a bit bacne I would use it there. Apparently I might be allergic, and now I have to throw it out for good! I don’t know who’s face can tolerate this concentrated serum :/
Worth the try for ACNE skin
I used it for about 2 years and I was more than satisfied. Upon returning on my Erasmus trip, it broke me out and made my skin dry. I don't know if anything happened during the trip but right now I don't use it. It's really good if you have taken acne treatment pills and you need smt to keep the acne away (from my experience at least).
The Ordinary Salicylic Acid 2% Solution 11 ingredients
The BHA didnt remove my acne, the clogged pores, and the sebaceous filaments. I've been using it for 4 months, and my acne condition is still the same.
