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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Theramid C-Tetra E.F. versus Colibri Skincare Vitamin C 15 Booster .

Last updated on March 07, 2024. Published on September 21, 2023

Overview

What they are

These products are both cruelty-free and reef safe serums. They have a total of 2 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 harsh alcohols, common allergens, oils, parabens, silicones 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 German Brand Germany
Serum German Brand Germany

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 C-Tetra E.F.

Shop

Buy Vitamin C 15 Booster

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

At a glance

Click on any of the items below to learn more

Notable Ingredients

Vitamin C (3)
Vitamin E
Exfoliators

Benefits

Hydrating
Redness Reducing (3)
Skin Texture (3)
Anti-Aging (4)
Dark Spots (3)
Scar Healing
Brightening (3)

Concerns

Rosacea
Eczema

Notable Ingredients

Vitamin C
Hyaluronic Acid

Benefits

Redness Reducing
Skin Texture
Anti-Aging
Dark Spots
Scar Healing
Brightening
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Ingredients Side-by-side

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

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

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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: Skin Conditioning, Solvent
Community Rating: Loved

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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water

Theramid C-Tetra E.F. contains this as ingredient number 1.

Colibri Skincare Vitamin C 15 Booster contains this as ingredient number 1.

2
What it does: Emulsifying, Emulsion Stabilising, Gel Forming, Skin Conditioning
Community Rating: Disliked

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 Gum

Theramid C-Tetra E.F. contains this as ingredient number 15.

Colibri Skincare Vitamin C 15 Booster contains this as ingredient number 8.

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

38% are loved or liked
19% have mixed ratings
33% are disliked or very disliked
10% have no rating yet
50% are loved or liked
33% have mixed ratings
8% are disliked or very disliked
8% 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

Theramid C-Tetra E.F. 21 ingredients

5.0 /5
from 1 rating
Absorbs Well (1) Great Value (1) Hydrating (1) Light Scent (1) Works Well (1)
rodney's avatar

rodney

1 month ago · Dry Skin
Review

nice light texture + light smell but goes away fast

Colibri Skincare Vitamin C 15 Booster 12 ingredients

5.0 /5
from 1 rating

Alternatives

Our Dupe Finder has found 50 potential alternatives that have similar ingredients to Theramid C-Tetra E.F..

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Our Dupe Finder has found 50 potential alternatives that have similar ingredients to Colibri Skincare Vitamin C 15 Booster.

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