Versus

Medik8 Hydr8 B5 Liquid Rehydration Serum Versus Circadia Vitamin C Reversal Serum

Serum
Serum
British Brand United Kingdom
American Brand United States

Updated on July 19, 2024

Overview

What they are

These products are both vegan, fungal acne (malassezia) safe, and reef safe serums. They have a total of 4 ingredients in common

Cool Features

They both contain hyaluronic acid

Suited For

They're both likely to be good for dry skin and sensitive skin

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates

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

Benefits

Key Ingredients

Benefits

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
Skin Conditioning

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

Learn more about Panthenol
Humectant, Skin Conditioning

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.

These are some other common types of Hyaluronic Acid:

Learn more about Sodium Hyaluronate
Preservative

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

When to use

33 Routines
48% use in am
52% use in pm
94% use every day
When to use See routines that use it ->
7 Routines
71% use in am
29% use in pm
86% use every day

Reviews

Here's what our community thinks

Medik8 Hydr8 B5 Liquid Rehydration Serum 7 ingredients

3.0 /5
from 2 ratings
Absorbs Well (1) Expensive (1) Hydrating (1)
agnesdolff's avatar

Agnes Dolff

2 months ago
Review

Lightweight and super hydrating. I prefer this one over skinceutical’s hydrating b5 

#expensive
#hydrating
#light
#absorbs well

Circadia Vitamin C Reversal Serum 8 ingredients

5.0 /5
from 1 rating
Absorbs Well (1) Great Value (1) Hydrating (1)
kaitlinwooley's avatar

Kaitlin Wooley

5 months ago
Review

My MIL is an aesthetician and when she was in school she gave me the sample size of this stuff and I really like it. It’s super light weight, absorbs nicely into the skin.

#great value
#hydrating
#light
#absorbs well