The INKEY List Alpha Arbutin Serum Versus COSRX The Niacinamide 15 Serum
Updated on August 23, 2024
Overview
What they are
These products are both cruelty-free and 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, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, 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
The INKEY List Alpha Arbutin Serum 23 ingredients
COSRX The Niacinamide 15 Serum 15 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
The INKEY List Alpha Arbutin Serum 23 ingredients
COSRX The Niacinamide 15 Serum 15 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Ingredients Side-by-side
Water
Skin ConditioningButylene Glycol
Humectant
Propanediol
SolventGlycerin
Humectant
Alpha-Arbutin
Antioxidant
Dicaprylyl Carbonate
EmollientCaprylic/Capric Triglyceride
MaskingPhenoxyethanol
Preservative
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingCaprylyl Glycol
EmollientSqualane
Emollient
Phospholipids
Skin ConditioningGlycine Soja Oil
Emollient
Carbomer
Emulsion StabilisingPolysorbate 60
Emulsifying
Sodium Phytate
Glycolipids
Skin ConditioningSorbitan Isostearate
Emulsifying
Leuconostoc/Radish Root Ferment Filtrate
Antimicrobial
Sodium Hydroxide
BufferingGlycine Soja Sterols
Emollient
Hyaluronic Acid
Humectant
Tocopherol
Antioxidant
Water, Butylene Glycol, Propanediol, Glycerin, Alpha-Arbutin, Dicaprylyl Carbonate, Caprylic/Capric Triglyceride, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Caprylyl Glycol, Squalane, Phospholipids, Glycine Soja Oil, Carbomer, Polysorbate 60, Sodium Phytate, Glycolipids, Sorbitan Isostearate, Leuconostoc/Radish Root Ferment Filtrate, Sodium Hydroxide, Glycine Soja Sterols, Hyaluronic Acid, Tocopherol
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 WaterButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Sodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.
Sodium Phytate is a chelating agent. Chelating agents help prevent metals from binding to water. This helps stabilize the ingredients and the product.
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 TocopherolIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The INKEY List Alpha Arbutin Serum 23 ingredients
COSRX The Niacinamide 15 Serum 15 ingredients
Reviews
Here's what our community thinks
The INKEY List Alpha Arbutin Serum 23 ingredients
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
