Here's our complete breakdown comparing the ingredients, attributes, and more of La Roche-Posay 10% Pure Niacinamide Serum versus Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum .
Published on May 06, 2023
Overview
What they are
These products are both reef safe serums. They have a total of 4 ingredients in common
Cool Features
They both contain hyaluronic acid and niacinamide
Suited For
They're both likely to be good for fighting acne, dry skin, brightening skin, oily skin, reducing pores and dark spots
Free From
They both do not contain any common allergens, oils, parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Price
Ingredient Info
La Roche-Posay 10% Pure Niacinamide Serum 29 ingredients
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 ingredients
Contains Alcohol
Ingredients in this product that are types of alcohol:
Contains Silicon
Ingredients in this product that are types of silicon:
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
Alcohol Free
This product is free of harsh alcohols 🎉
Silicon Free
This product is free of silicons 🎉
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Malassezia Safe
This product is free of malassezia feeding ingredients 🎉
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
At a glance
Click on any of the items below to learn more
La Roche-Posay 10% Pure Niacinamide Serum 29 ingredients
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 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:
This product contains 1 ingredient that may have this attribute:
Benefits
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:
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:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients 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:
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
Notable Ingredients
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 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:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
La Roche-Posay 10% Pure Niacinamide Serum 29 ingredients
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 ingredients
Water • Niacinamide • Glycerin • Alcohol Denat. • Hydroxyethylpiperazine Ethane Sulfonic Acid • Dimethicone • Isopropyl Lauroyl Sarcosinate • Octyldodecanol • Peg-20 Methyl Glucose Sesquistearate • Tin Oxide • Sorbitan Oleate • Dimethiconol • Cetearyl Ethylhexanoate • Isohexadecane • Sodium Hyaluronate • Phenylethyl Resorcinol • Poloxamer 338 • Ammonium Polyacryloyldimethyl Taurate • Disodium EDTA • Isopropyl Myristate • Citric Acid • Xanthan Gum • Polysorbate 80 • Acrylamide • Tocopherol • Phenoxyethanol • Mica • CI 77891 • Parfum
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterLa Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 1.
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum contains this as ingredient number 1.
Niacinamide 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 NiacinamideLa Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 2.
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum contains this as ingredient number 2.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinLa Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 3.
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum contains this as ingredient number 3.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateLa Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 15.
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum contains this as ingredient number 7.
Here's what our community thinks of the ingredients in these two products.
La Roche-Posay 10% Pure Niacinamide Serum 29 ingredients
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
La Roche-Posay 10% Pure Niacinamide Serum 29 ingredients
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum 10 ingredients
Reviews
Here's what our community thinks
La Roche-Posay 10% Pure Niacinamide Serum 29 ingredients
AnastasiaW
I applied a small amount to a dark spot. The next day I woke up with an inflamed cystic acne that just appeared out of nowhere. Looking at the...
I applied a small amount to a dark spot. The next day I woke up with an inflamed cystic acne that just appeared out of nowhere. Looking at the ingredients now I am not surprised. Very disappointing, why do they make formulas like this???
Alternatives
Our Dupe Finder has found 28 potential alternatives that have similar ingredients to La Roche-Posay 10% Pure Niacinamide Serum.
See 28 alternativesOur Dupe Finder has found 50 potential alternatives that have similar ingredients to Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum.
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