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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum versus La Roche-Posay 10% Pure Niacinamide Serum .

Last updated on November 02, 2023. Published on November 14, 2023

Overview

What they are

These products are both reef safe serums. They have a total of 26 ingredients in common

Cool Features

They both contain exfoliants, hyaluronic acid and Vitamin E

Suited For

They're both likely to be good for anti aging, dry skin, brightening skin, reducing pores and scar healing

Free From

They both do not contain any common allergens, oils, parabens or sulfates

What's Inside

They both contain harsh alcohols, fragrances and silicones

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.

Serum French Brand France
Serum French Brand France

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Serum

Serums are highly concentrated with ingredients to provide skin with benefits. They should be used after cleansing and before moisturizing.

Price

Shop

Buy 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum

Starts at $27.95
Shop

Buy 10% Pure Niacinamide Serum

Starts at $39.99

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Notable Ingredients

AHA
Vitamin E
Exfoliators
Hyaluronic Acid

Benefits

Hydrating (2)
Skin Texture
Reduces Large Pores
Anti-Aging (2)
Scar Healing (2)
Brightening (3)

Concerns

Drying
May Worsen Oily Skin (3)
Acne Trigger (2)
Irritating (3)
Rosacea (3)
Eczema (3)

Notable Ingredients

Vitamin E
Exfoliators
Niacinamide
Hyaluronic Acid

Benefits

Hydrating (2)
Good For Oily Skin
Redness Reducing
Reduces Large Pores
Anti-Aging
Dark Spots
Scar Healing
Acne Fighting
Brightening (3)

Concerns

Drying
May Worsen Oily Skin (3)
Acne Trigger (2)
Irritating (2)
Rosacea (2)
Eczema (3)
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Ingredients Compared

Ingredients that are highlighted in purple are present in both products.

Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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Ingredients Explained

These ingredients are found in both products.

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

1
What it does: Skin Conditioning, Solvent
Community Rating: Loved

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 Water

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 1.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 1.

2
What it does: Humectant, Skin Conditioning, Skin Protecting, Solvent
Community Rating: Loved

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 Glycerin

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 2.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 3.

3
What it does: Antimicrobial, Astringent, Masking, Solvent
Community Rating: Very Disliked

Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol and other additives. It has a low molecular weight and will evaporate quickly. This helps other ingredients become better absorbed and dry once applied.

Alcohol Denat. is volatile and may cause irritation. It helps draw out natural oils in skin and dry out your skin.

One study from 2005 found adding emollients to propanol-based sanitizer decreased irritation.

Alcohol is antibacterial by nature. This can help preserve products and increase their shelf life.

Other types of astringent alcohols include:

Learn more about Alcohol Denat.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 3.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 4.

4
What it does: Buffering
Community Rating: Liked

We don't have a description for Hydroxyethylpiperazine Ethane Sulfonic Acid.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 4.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 5.

5
What it does: Emollient, Skin Conditioning, Skin Protecting
Community Rating: Very Disliked

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 5.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 6.

6
What it does: Skin Conditioning

We don't have a description for Isopropyl Lauroyl Sarcosinate.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 6.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 7.

7
What it does: Emollient, Masking
Community Rating: Disliked

Octyldodecanol is a fatty alcohol. It is primarily used to enhance the texture of products.

As an emulsifier, Octyldodecanol helps prevent the oils and waters from separating. It also prevents ingredients from creating foam when shaken.

Octyldodecanol is created by reducing fatty acid to an alcohol.

Due to its high molecular weight, it does not get absorbed into the skin.

Learn more about Octyldodecanol

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 7.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 8.

8
What it does: Emulsifying
Community Rating: Very Disliked

Peg-20 Methyl Glucose Sesquistearate isn't fungal acne safe.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 8.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 9.

9
What it does: Buffering, Masking
Community Rating: Disliked

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.

As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and look more even.

Read more about some other popular AHA's here:

Learn more about Citric Acid

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 9.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 21.

10
What it does: Antioxidant
Community Rating: Mixed

Phenylethyl Resorcinol is an antioxidant.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 11.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 16.

11
What it does: Humectant, Skin Conditioning
Community Rating: Loved

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 Hyaluronate

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 12.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 15.

12
What it does: Emollient, Skin Conditioning
Community Rating: Very Disliked

Cetearyl Ethylhexanoate is derived from cetearyl alcohol and sorbic acid.

It is an emollient and helps hydrate the skin. Emollients form a barrier on the skin to prevent water from escaping.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 14.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 13.

13
What it does: Emollient, Masking
Community Rating: Very Disliked

Isopropyl Myristate is an emollient, thickening agent, and texture enhancer. It is created from isopropyl alcohol and myristic acid.

It is used to help other ingredients be better absorbed. It is also an emollient and may help soften and hydrate the skin.

The comedogenic rating of this ingredient depends on the concentration. Lower amounts results in a lower rating.

Isopropyl Myristate may not be fungal acne safe. It can potentially worsen acne prone skin.

Learn more about Isopropyl Myristate

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 15.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 20.

14
What it does: Emulsion Stabilising
Community Rating: Liked

Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It helps add stability and texture to a product.

Ammonium Polyacryloyldimethyl Taurate is stable over a wide pH range. Due to its ability to absorb water, it can help thicken the texture of a product.

As an emulsion stabilizer, this ingredient is able to stabilize and mix the other ingredients. This creates a consistent texture.

Learn more about Ammonium Polyacryloyldimethyl Taurate

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 17.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 18.

15
What it does: Cosmetic Colorant
Community Rating: Disliked

Ci 77891 is a white pigment from Titanium dioxide. It is naturally found in minerals such as rutile and ilmenite.

It's main function is to add a white color to cosmetics. It can also be mixed with other colors to create different shades.

Ci 77891 is commonly found in sunscreens due to its ability to block UV rays.

Learn more about CI 77891

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 18.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 28.

16
What it does: Emollient, Skin Conditioning, Solvent
Community Rating: Mixed

Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.

Due to its large size, Isohexadecane is not absorbed by the skin. Instead, it sits on top and acts as an emollient. Emollients help keep your skin soft and smooth by trapping moisture within.

Isohexadecane is often used in products designed to help oily skin. It is lightweight and non-greasy while helping to moisturize. When mixed with silicones, it gives a product a silky feel.

Learn more about Isohexadecane

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 19.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 14.

17
What it does: Cosmetic Colorant
Community Rating: Very Disliked

Mica refers to a group of silicate minerals. Mica crystals are easily split to give products a shimmer. These crystals are able to reflect light to temporarily give your skin a glowy look.

Mica is found to be safe. Trace amounts of heavy metals may be found in mica, but these metals are not harmful in our personal products.

Mica has been used since prehistoric times throughout the world. Ancient Egyptian, Indian, Greek, Roman, Aztec, and Chinese civilizations have used mica.

Mica can be naturally found throughout the world. However, some sources of mica may be controversial. In 2016, mica mined in the Jharkhand state in India was found to be using child labor. However, companies are able to source ethical mica affiliated with international organizations that monitor the mica supply chain.

Learn more about Mica

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 20.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 27.

18
What it does: Emulsifying

We don't have a description for Poloxamer 338.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 21.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 17.

19
What it does: Emulsifying
Community Rating: Very Disliked

Polysorbate 80 is a surfactant and emulsifier. It is used to keep ingredients together, and prevent oils and waters from separating.

It is made from polyethoxylated sorbitan and oleic acid. This ingredient can be found in cosmetics, foods, and medicine. It is water-soluble.

Polysorbate 80 may not be fungal acne safe.

Learn more about Polysorbate 80

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 22.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 23.

20
What it does: Emulsifying
Community Rating: Very Disliked

Sorbitan Oleate is created from compounds in oleic acid and sorbitol. It is used to stabilize a product by preventing ingredients from separating.

Emulsifiers help keep ingredients together, such as oils and water.

Sorbitan Oleate may not be fungal acne safe. It can also worsen oily skin.

Learn more about Sorbitan Oleate

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 23.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 11.

21
What it does: Abrasive
Community Rating: Disliked

Tin Oxide is an inorganic oxide used to add opacity and volume to a product. In nature, it is already found in mineral form. The main ore of tin is an opaque and shiny mineral called casseterite.

Tin Oxide helps remove translucency in a product, or make it more opaque. Besides adding opacity, tin oxide is used for bulking to add volume.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 24.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 10.

22
What it does: Antioxidant, Masking, Skin Conditioning
Community Rating: Liked

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.

Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.

You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.

There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.

Learn more about Tocopherol

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 25.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 25.

23
What it does: Emulsifying, Emulsion Stabilising, Gel Forming, Skin Conditioning
Community Rating: Disliked

Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.

On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.

Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.

Learn more about Xanthan Gum

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 26.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 22.

24
What it does: Emollient, Moisturising
Community Rating: Disliked

Dimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.

This ingredient helps to create a silky texture and improve spreadability. Due to its high molecular weight and thickness, it is often combined with cyclopentasiloxane.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 27.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 12.

25
What it does: Preservative
Community Rating: Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 28.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 26.

26
What it does: Masking, Perfuming
Community Rating: Very Disliked

Parfum is a catch-all term for an ingredient or more that is used to give aroma to products. Parfum, or fragrance, can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "Parfum" in the ingredients list is a different mixture.

In the US, the alternative name for parfum is 'fragrance'. The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.

Depending on the blend, it can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Products use parfum often to give products a scent or cover up smells of different ingredients.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

Learn more about Parfum

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum contains this as ingredient number 29.

La Roche-Posay 10% Pure Niacinamide Serum contains this as ingredient number 29.

Here's what our community thinks of the ingredients in these two products.

28% are loved or liked
10% have mixed ratings
55% are disliked or very disliked
7% have no rating yet
24% are loved or liked
7% have mixed ratings
59% are disliked or very disliked
10% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum 29 ingredients

12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum hasn't been rated yet.
Rate it now

La Roche-Posay 10% Pure Niacinamide Serum 29 ingredients

3.0 /5
from 3 ratings
Broke Me Out (1) Doesn't Work (1)
ewhw41's avatar

ewhw41

9 months ago · Combination Skin
Review

Always settles my skin down

AnastasiaW's avatar

AnastasiaW

5 months ago · Skin
Review

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???

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