Explore Routine Login

Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Skin Functional Oil Based Vitamin C versus COSRX The Vitamin C 23 Serum .

Last updated on July 18, 2023. Published on April 03, 2023

Overview

What they are

These products are both reef safe serums. They have a total of 1 ingredients in common

Cool Features

They both contain Vitamin C

Suited For

They're both likely to be good for anti aging, dark spots and better texture

Free From

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

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 African Brand South Africa
Serum 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.

Serum

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

Price

Shop

Buy Oil Based Vitamin C

Shop

Buy The Vitamin C 23 Serum

Starts at $14.90

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
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

At a glance

Click on any of the items below to learn more

Notable Ingredients

Vitamin C

Benefits

Redness Reducing
Skin Texture
Anti-Aging
Dark Spots

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
Join our community

Build your routine, track which ingredients work for you, and much more with your free account.

Join SkinSort

Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

Learn more about what what Com. / Irr. ratings are

Loading ingredients...

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: Skin Conditioning, Solvent
Community Rating: Mixed

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.

This property also makes Pentylene Glycol a great texture enhancer. It can help thicken or emulsify a product. Emulsifiers help stabilize a product. It does this by preventing certain ingredients from separating.

Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.

Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.

Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.

Learn more about Pentylene Glycol

Skin Functional Oil Based Vitamin C contains this as ingredient number 10.

COSRX The Vitamin C 23 Serum contains this as ingredient number 26.

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

20% are loved or liked
30% have mixed ratings
30% are disliked or very disliked
20% have no rating yet
56% are loved or liked
12% have mixed ratings
26% are disliked or very disliked
6% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

Loading routine usage...
Loading routine usage...

Reviews

Here's what our community thinks

Skin Functional Oil Based Vitamin C 10 ingredients

Oil Based Vitamin C hasn't been rated yet.
Rate it now

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

10 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.

Alternatives

Our Dupe Finder has found 1 potential alternatives that have similar ingredients to Skin Functional Oil Based Vitamin C.

See 1 alternatives

Our Dupe Finder has found 37 potential alternatives that have similar ingredients to COSRX The Vitamin C 23 Serum.

See 37 alternatives
Loading similar comparisons...