COSRX The Niacinamide 15 Serum Versus L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum
Updated on August 23, 2024
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 Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing 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 needs an update? Let us know.
Ingredient Info
COSRX The Niacinamide 15 Serum 15 ingredients
L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum 29 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
COSRX The Niacinamide 15 Serum 15 ingredients
L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum 29 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Alcohol Denat.
Antimicrobial
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingDimethicone
Emollient
Isopropyl Lauroyl Sarcosinate
Skin ConditioningOctyldodecanol
EmollientPEG-20 Methyl Glucose Sesquistearate
Emulsifying
Citric Acid
Buffering
Ferulic Acid
Antimicrobial
Phenylethyl Resorcinol
Antioxidant
Sodium Hyaluronate
Humectant
Trisodium Ethylenediamine Disuccinate
Cetearyl Ethylhexanoate
Emollient
Isopropyl Myristate
Emollient
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
Emulsion StabilisingAmmonium Polyacryloyldimethyl Taurate
Emulsion StabilisingCI 77891
Cosmetic ColorantIsohexadecane
EmollientMica
Cosmetic Colorant
Poloxamer 338
EmulsifyingPolysorbate 80
Emulsifying
Sorbitan Oleate
Emulsifying
Tin Oxide
Abrasive
Tocopherol
Antioxidant
Xanthan Gum
EmulsifyingDimethiconol
Emollient
Phenoxyethanol
Preservative
Parfum
Masking
Water, Glycerin, Alcohol Denat., Hydroxyethylpiperazine Ethane Sulfonic Acid, Dimethicone, Isopropyl Lauroyl Sarcosinate, Octyldodecanol, PEG-20 Methyl Glucose Sesquistearate, Citric Acid, Ferulic Acid, Phenylethyl Resorcinol, Sodium Hyaluronate, Trisodium Ethylenediamine Disuccinate, Cetearyl Ethylhexanoate, Isopropyl Myristate, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Ammonium Polyacryloyldimethyl Taurate, CI 77891, Isohexadecane, Mica, Poloxamer 338, Polysorbate 80, Sorbitan Oleate, Tin Oxide, Tocopherol, Xanthan Gum, Dimethiconol, Phenoxyethanol, Parfum
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 WaterXanthan 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 GumCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
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 even out skin tone.
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.
Read more about some other popular AHA's here:
Learn more about Citric AcidTocopherol (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 TocopherolIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
COSRX The Niacinamide 15 Serum 15 ingredients
L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum 29 ingredients
Reviews
Here's what our community thinks
COSRX The Niacinamide 15 Serum 15 ingredients
warning!!! this can be SO irritating *if you use it wrong*
do not use with
-ahas
-bhas
-vit c
-other niacinamide products
-start on dry skin first as wet skin absorbs more
tip: sandwich it. i put a little centella ampoule before and after this serum to prevent irritation. if used properly, this serum is a life changer! i struggle with closed comedones and acne scars and this helped Show more
HG acne scar serum
Initially, this serum had helped fade away most of my old acne scars. After while, I thought it didn't do anything more for my new acne growth. So I ditched this serum for about 3 months and tried other new niacinamide products. I REGRET it. Soon after, I got more and more whiteheads and acne. My skin texture becomes uneven and dry. The new acne scars couldn't fade away at all. Show more
L'Oreal 12% Niacinamide + Amino Sulfonic + Ferulic Acid Dark Spot Serum 29 ingredients
Good product whould recomend
this product works much weaker than popular korean serums with niacinamide like anua (it is not an ad hahah). smells strange. dries in the wrong places, does practically nothing with PIH and PIE. you and your skin deserve a better serum than this one.
