Versus

Murad Vita-C Eyes Dark Circle Corrector Versus Medik8 C-Tetra Eye

Eye Moisturizer
Eye Moisturizer
American Brand United States
British Brand United Kingdom

Updated on August 20, 2024

Overview

What they are

These products are both cruelty-free and reef safe eye moisturizers. 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 dry skin, brightening skin, reducing pores and better texture

Free From

They both do not contain any harsh alcohols, parabens or sulfates

What's Inside

They both contain silicones

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Ingredient Info

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About this product

About this product

At a glance

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Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Vita-C Eyes Dark Circle Corrector

Ingredients Explained

These ingredients are found in both products.

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

Antioxidant, Skin Conditioning

Tetrahexyldecyl Ascorbate (THD) is a stable and oil-soluble form of Vitamin C.

THD is special in that it has the ability to travel deeper into skin than traditional ascorbic acid while maintaining the same skin benefits (double win!).

Because it’s oil-soluble, THD dives deep into your skin’s fatty layers (think ceramides and cholesterol) to fight off the kind of free radicals that mess with your skin barrier. This makes it a great pair with water-based vitamin C (ascorbic acid) that mainly works on the surface.

Even at just 0.1%, THD is already showing great antioxidant activity. When used up to 2%, it helps keep your skin happy and calm, especially when it’s stressed from pollution or sun.

Want to fade dark spots or tackle hyperpigmentation? You’ll want 5% or more. Pairing it with brightening buddies like niacinamide or licorice root gives even better results. One study even used 30% THD with other brighteners and saw real results on stubborn discoloration, even in melasma-prone skin.

A note on THD: It’s has a slightly silky, oily texture and usually shows up colorless or pale yellow (though the exact shade can vary by supplier).

While you can sneak it into water-based formulas, it really shines when paired with silicones or oils, which help your skin soak it up better.

THD is pretty stable, but it’s still vulnerable to degradation like ascorbic acid. Too much light or heat (above 113°F / 45°C) can break it down over time. Go for dark and opaque packaging that keeps it safe and shady!

Read more about other types of Vitamin C:

Learn more about Tetrahexyldecyl Ascorbate

When to use

21 Routines
67% use in am
33% use in pm
100% use every day
13 Routines
100% use in am
0% use in pm
100% use every day