Versus

La Roche-Posay EFFACLAR K+ Versus The INKEY List Succinic Acid Acne Treatment - Europe

General Moisturizer
Facial Treatment
French Brand France
British Brand United Kingdom

Updated on June 19, 2024

Overview

What they are

These products are both reef safe . They have a total of 3 ingredients in common

Cool Features

They both contain BHA

Suited For

They're both likely to be good for fighting acne, dry skin, brightening skin, oily skin, reducing pores and scar healing

Free From

They both do not contain any oils, parabens or sulfates

What's Inside

They both contain fragrances

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

Click any item below to learn more and see relevant 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

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Skin Conditioning, Solvent

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 Water
Masking, Preservative, Skin Conditioning

Salicylic 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 Acid
Buffering

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 Hydroxide

When to use

277 Routines
44% use in am
56% use in pm
89% use every day
When to use See routines that use it ->
336 Routines
42% use in am
58% use in pm
74% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

La Roche-Posay EFFACLAR K+ 24 ingredients

3.0 /5
from 3 ratings
KaterinaLaskaraki_411's avatar

KaterinaLaskaraki_411

2 years ago
Review

i dont see a change on my skin. it is still oily with black spots. I use this product since a year ago but Im dissapointed.

The INKEY List Succinic Acid Acne Treatment 22 ingredients

3.6 /5
from 8 ratings
Great Value (2) Absorbs Well (1) Doesn't Work (1)
Oop's avatar

Maddie

26 days ago
Review

I used this back in 2022 and it worked really good and healed my acne really quickly when I needed it to. However, for some reason over time it just stopped working for me and didn’t have the same effect as it did before which really disappointed me because I loved it so much. It was still a really good product though.

I bought this from Look Fantastic

#great value
#absorbs well
#doesn't work
#works well
Daisyfrd's avatar

Daisyfrd

2 years ago
Review

The only product that has made a significant difference within 24 hours, decreases redness and texture quickly