COSRX The Niacinamide 15 Serum Versus Garnier 3.5% Vitamin C, Niacinamide, Salicylic Acid, Brightening & Anti Dark Spot Serum
Updated on June 28, 2024
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 6 ingredients in common
Cool Features
They both contain niacinamide, Vitamin C and Vitamin E
Suited For
They're both likely to be good for fighting acne, brightening skin, oily skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any 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
COSRX The Niacinamide 15 Serum 15 ingredients
Garnier 3.5% Vitamin C, Niacinamide, Salicylic Acid, Brightening & Anti Dark Spot Serum 38 ingredients
At a glance
Click on any of the items below to learn more
COSRX The Niacinamide 15 Serum 15 ingredients
Garnier 3.5% Vitamin C, Niacinamide, Salicylic Acid, Brightening & Anti Dark Spot Serum 38 ingredients
Notable Ingredients
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Benefits
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Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
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This product contains 1 ingredient that may have this attribute:
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Benefits
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Concerns
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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 NiacinamideButylene 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.
Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.
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 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
Garnier 3.5% Vitamin C, Niacinamide, Salicylic Acid, Brightening & Anti Dark Spot Serum 38 ingredients
![](https://skinsort.com/assets/routine_creator/when_to_use_card-684ec64d.webp)
![](https://skinsort.com/assets/routine_creator/when_to_use_card-684ec64d.webp)
Reviews
Here's what our community thinks
COSRX The Niacinamide 15 Serum 15 ingredients
ChienYun_CY
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...
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. I decided to repurchase this serum, and almost immediately, my scars cleared and had reduced inflammation on new cystic acne. It also helped to control sebum production and I have lesser acne growth. One of the products I cannot live without.
Garnier 3.5% Vitamin C, Niacinamide, Salicylic Acid, Brightening & Anti Dark Spot Serum 38 ingredients
bibalapau
Hate it
My skin isn't even that sensitive, and my forehead was completely ruined. My pores got enormous, then i got an incredible amount of small...
Hate it
My skin isn't even that sensitive, and my forehead was completely ruined. My pores got enormous, then i got an incredible amount of small red pimples or something. I know my skin is kind of sensitive, but this serum was too much. Might work for some people, i know, but for me this was a no-no.
Mirq
Definitely not for sensitive skin
I have combo sensitive skin and it absolutely destroyed my skin barrier. My face was red, tight and burning after...
Definitely not for sensitive skin
I have combo sensitive skin and it absolutely destroyed my skin barrier. My face was red, tight and burning after second use. It smells like alcohol and have very strong scent. I will never ever use it not even on my neck or arms.