Versus

COSRX The Vitamin C 23 Serum Versus It's Skin Power 10 Formula VC Effector

Serum
Serum
Korean Brand South Korea
Korean Brand South Korea

Updated on July 11, 2024

Overview

What they are

These products are both reef safe serums. They have a total of 3 ingredients in common

Cool Features

They both contain Vitamin C

Suited For

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

Free From

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

What's Inside

They both contain oils

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

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
The Vitamin C 23 Serum

Ingredients Explained

These ingredients are found in both products.

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

Skin Conditioning, Solvent

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 Water

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.

Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.

Learn more about Disodium EDTA
Humectant, Masking, Skin Conditioning

Butylene 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.

When to use

598 Routines
76% use in am
24% use in pm
92% use every day
When to use See routines that use it ->
5 Routines
80% use in am
20% use in pm
80% use every day

Reviews

Here's what our community thinks

COSRX The Vitamin C 23 Serum 34 ingredients

3.7 /5
from 12 ratings
Works Well (5) Absorbs Well (3) Oily (3)
laila.21's avatar

Laila

1 year ago
Review

I didn't like the consistency of this serum at all.
It felt like I was putting oil to my face, but since I always use the whole product to see results this did nothing to me other than feeling uncomfortable.

#oily
#strong scent
#works well
ChienYun_CY's avatar

Chien Yun Ang

2 years ago
Review

Cured my acne scars
I had mix feelings when I first bought this as I read that the smell can be off-putting. But I am glad I bought it. My acne scars faded a lot more after 3 days of using it and saw great results in one week. It also didn't break me out despite containing alcohols and oils. It does sting a little on the first application but doesn't irritate my skin. The smell can be quite strong Show more

It's Skin Power 10 Formula VC Effector 15 ingredients

Power 10 Formula VC Effector hasn't been rated yet.
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