Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum Versus Etat Pur Niacinamide 5%
Updated on April 08, 2025
Overview
What they are
These products are both fungal acne (malassezia) safe and reef safe serums. They have a total of 4 ingredients in common
Cool Features
They both contain niacinamide
Suited For
They're both likely to be good for fighting acne, anti aging, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any 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
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 ingredients
Etat Pur Niacinamide 5% 9 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 ingredients
Etat Pur Niacinamide 5% 9 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
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.
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 WaterNiacinamide has emerged as an all-star ingredient due to its many benefits.
It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.
Other benefits include smoothing wrinkles and minimizing redness.
The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.
Learn more about NiacinamidePropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
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 PropanediolSodium 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 HydroxideIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 ingredients
Etat Pur Niacinamide 5% 9 ingredients
Reviews
Here's what our community thinks
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 ingredients
This is too expensive for a 30ml. You can get a pure niacinamide serum from Good Molecules at a sustainable price. I don’t feel like it’s doing anything to my skin.
