The Ordinary Alpha Arbutin 2% + HA Versus La Roche-Posay Effaclar Salicylic Acid Acne Treatment Serum
Updated on July 29, 2025
Overview
What they are
These products are both vegan and reef safe . They have a total of 4 ingredients in common
Cool Features
They both contain AHA
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any common allergens, parabens, silicones or sulfates
What's Inside
They both contain oils
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 Alpha Arbutin 2% + HA 12 ingredients
La Roche-Posay Effaclar Salicylic Acid Acne Treatment Serum 20 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
The Ordinary Alpha Arbutin 2% + HA 12 ingredients
La Roche-Posay Effaclar Salicylic Acid Acne Treatment Serum 20 ingredients
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 ConditioningSodium Hydroxide
BufferingPPG-26-Buteth-26
Skin ConditioningHydroxyethylpiperazine Ethane Sulfonic Acid
BufferingCitric Acid
Buffering
PEG-30 Glyceryl Cocoate
Emulsifying
PEG-40 Hydrogenated Castor Oil
Emulsifying
PEG-60 Hydrogenated Castor Oil
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, Sodium Hydroxide, PPG-26-Buteth-26, Hydroxyethylpiperazine Ethane Sulfonic Acid, Citric Acid, PEG-30 Glyceryl Cocoate, PEG-40 Hydrogenated Castor Oil, PEG-60 Hydrogenated Castor Oil, 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.
Peg-40 Hydrogenated Castor Oil is derived from castor oil and polyethylene glycol (PEG). It is used as a emollient and emulsifier.
As an emulsifier, it helps prevent ingredients from separating. It also helps make the other ingredients more soluble; it is often used to solubilize fragrances. This increases spreadability and elongates shelf life in a product.
Emollients help soothe and soften the skin. They do this by creating a protective film on your skin. This barrier helps trap moisture and keeps your skin hydrated. Emollients may be effective at treating dry or itchy skin.
This ingredient may or may not be vegan, depending on the source.
Peg-40 Hydrogenated Castor Oil may not be fungal-acne safe. We recommend speaking with a professional if you have any questions or concerns.
Learn more about PEG-40 Hydrogenated Castor OilWe don't have a description for PPG-26-Buteth-26 yet.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Â
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolWater. 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
Here's what our community thinks of the ingredients in these products.
When to use
The Ordinary Alpha Arbutin 2% + HA 12 ingredients
La Roche-Posay Effaclar Salicylic Acid Acne Treatment Serum 20 ingredients
Reviews
Here's what our community thinks
The Ordinary Alpha Arbutin 2% + HA 12 ingredients
La Roche-Posay Effaclar Salicylic Acid Acne Treatment Serum 20 ingredients
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