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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of COSRX The Vitamin C 23 Serum versus Mizon Real Vitamin C Ampoule .

Last updated on July 18, 2023. Published on April 30, 2023

Overview

What they are

These products are both cruelty-free and reef safe . 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, brightening skin, scar healing, dark spots and better texture

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 need an update? Let us know.

Serum South Korean Brand South Korea
Ampoule South Korean Brand South Korea

Serum

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

Ampoule

Ampoules are created to target one area of concern. They are usually highly concentrated with active or beneficial ingredients.

Price

Shop

Buy The Vitamin C 23 Serum

Starts at $14.90
Shop

Buy Real Vitamin C Ampoule

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
ph level
4
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

Vitamin C
Vitamin E
Niacinamide
Hyaluronic Acid

Benefits

Hydrating (3)
Good For Oily Skin
Redness Reducing (3)
Reduces Irritation (2)
Skin Texture
Reduces Large Pores
Anti-Aging (3)
Dark Spots (3)
Scar Healing (4)
Acne Fighting
Brightening (3)

Concerns

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

Notable Ingredients

Vitamin C

Benefits

Redness Reducing
Skin Texture
Anti-Aging (2)
Dark Spots (2)
Scar Healing (4)
Brightening
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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: Antioxidant, Buffering, Masking, Skin Conditioning
Community Rating: Loved

Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.

Not only is vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.

Vitamin C is best used for brightening skin. It improves dark spots, acne scars, and hyperpigmentation. This is because it blocks the process of skin darkening when exposed to UV.

Remember: Vitamin C should not replace sunscreen!

Your skin uses vitamin C to build collagen. Collagen is one key component in having a strong skin barrier and plump skin. Vitamin C also plays a role in regulating collagen, thus making it effective in improving wrinkles and fine lines.

Ascorbic acid shows potent antioxidant activity. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.

The best formulations include Vitamin E and/or ferulic acid. These two ingredients help stabilize and provide a boost in the benefits of ascorbic acid. This is because ascorbic acid becomes unstable when exposed to UV and air. In fact, you can tell your ascorbic acid has oxidized when it turns an orange-yellow color.

Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.

Read more about other types of Vitamin C:

Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.

Learn more about Ascorbic Acid

COSRX The Vitamin C 23 Serum contains this as ingredient number 2.

Mizon Real Vitamin C Ampoule contains this as ingredient number 3.

2
What it does: Solvent
Community Rating: Liked

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Propanediol is not likely to cause sensitivity and considered safe to use.

It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol

COSRX The Vitamin C 23 Serum contains this as ingredient number 3.

Mizon Real Vitamin C Ampoule contains this as ingredient number 1.

3
What it does: Skin Conditioning
Community Rating: Loved

Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.

Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.

Studies have found adenosine may also help with wound healing.

In skincare products, Adenosine is usually derived from yeast.

Learn more about Adenosine

COSRX The Vitamin C 23 Serum contains this as ingredient number 15.

Mizon Real Vitamin C Ampoule contains this as ingredient number 10.

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

59% are loved or liked
12% have mixed ratings
26% are disliked or very disliked
3% have no rating yet
50% are loved or liked
10% have mixed ratings
20% are disliked or very disliked
20% 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

COSRX The Vitamin C 23 Serum 34 ingredients

3.3 /5
from 7 ratings
Strong Scent (2) Doesn't Work (1) Expensive (1) Absorbs Well (1) Sticky (1) Works Well (1)
laila.21's avatar

laila.21

4 months ago · Combination Skin
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...

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.

ChienYun_CY's avatar

ChienYun_CY

11 months ago · Combination Skin
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...

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 when you first spread it on, but it slowly goes away after awhile.

Mizon Real Vitamin C Ampoule 10 ingredients

Real Vitamin C Ampoule hasn't been rated yet.
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Alternatives

Our Dupe Finder has found 39 potential alternatives that have similar ingredients to COSRX The Vitamin C 23 Serum.

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