Updated on July 20, 2023
Overview
What they are
These products are both fungal acne (malassezia) safe and reef safe . They have a total of 2 ingredients in common
Suited For
They're both likely to be good for fighting acne and brightening 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
La Roche-Posay Effaclar Duo (+) Dual Action Acne Treatment 13 ingredients
REVOX B77 Salicylic Acid 2% 9 ingredients
At a glance
Click on any of the items below to learn more
La Roche-Posay Effaclar Duo (+) Dual Action Acne Treatment 13 ingredients
REVOX B77 Salicylic Acid 2% 9 ingredients
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
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.
Potassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.
Sapnification is the process of creating fatty acid metal salts from triglycerides and a strong base. During this process, Potassium Hydroxide is used up and is not present in the final product.
Using high concentrations of Potassium Hydroxide have shown to irritate the skin.
Learn more about Potassium HydroxideDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAIngredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
La Roche-Posay Effaclar Duo (+) Dual Action Acne Treatment 13 ingredients
REVOX B77 Salicylic Acid 2% 9 ingredients
![](https://skinsort.com/assets/routine_creator/when_to_use_card-684ec64d.webp)
![](https://skinsort.com/assets/routine_creator/when_to_use_card-684ec64d.webp)
Reviews
Here's what our community thinks
La Roche-Posay Effaclar Duo (+) Dual Action Acne Treatment 13 ingredients
Mirq
Great spot treatment but expensive
I used it as a spot treatment and it worked beautifully for me. I have sensitive combo skin and every time I’ve...
Great spot treatment but expensive
I used it as a spot treatment and it worked beautifully for me. I have sensitive combo skin and every time I’ve got some whitehead i used it on it and in it disappeared. Definitely wouldn’t use it every day or as a moisturiser. The only reason why i don't like it is, because it's really expensive.
REVOX B77 Salicylic Acid 2% 9 ingredients
sofijazz
Disappointing
It's not doing anything at all. I've tried using it more and less frequently, but no changes whatsoever. At least it didn't give me...
Disappointing
It's not doing anything at all. I've tried using it more and less frequently, but no changes whatsoever. At least it didn't give me acne.