Versus

Biologique Recherche Sérum Yall~O2 Fundamental Hydration Elixir Versus Haruharu Wonder Black Rice Probiotics Barrier Essence

Serum
Essence
French Brand France
Korean Brand South Korea

Updated on March 31, 2025

Overview

What they are

These products are both cruelty-free and reef safe . They have a total of 3 ingredients in common

Suited For

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

Free From

They both do not contain any harsh alcohols, parabens, silicones 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 needs an update? Let us know.

Ingredient Info

Click any item below to learn more and see relevant ingredients

What's inside (and what isn't)

What's inside (and what isn't)

At a glance

Click on any of the items below to learn more

Benefits

Concerns

Benefits

Concerns

Ingredients Side-by-side

found in both products
Sérum Yall~O2 Fundamental Hydration Elixir
Black Rice Probiotics Barrier Essence

Water

Skin Conditioning

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Helianthus Annuus Seed Oil

Emollient
0 / 0 Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Caprylic/Capric Triglyceride

Masking
Helps hydrate Dry Skin Icon

Hydrogenated Polyisobutene

Emollient
1 / 2

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
Emulsifying, Emulsion Stabilising, Gel Forming

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
Skin Conditioning

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.

When to use

2 Routines
50% use in am
50% use in pm
100% use every day
343 Routines
46% use in am
54% use in pm
93% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Biologique Recherche Sérum Yall~O2 Fundamental Hydration Elixir 35 ingredients

Sérum Yall~O2 Fundamental Hydration Elixir hasn't been rated yet.
Rate it now

Haruharu Wonder Black Rice Probiotics Barrier Essence 48 ingredients

4.3 /5
from 7 ratings
Works Well (4) Absorbs Well (3) No Scent (3)
mikey420x's avatar

mikey

7 months ago
Review

This product was so good for keeping my skin hydrated during the day that i tested it but straight away the morning after I noticed an angry spot on my chin, I knew it would happen but just wanted to see how it performed as its intended.

left my skin not greasy, but hydrated looking, and didn’t exert any more oil production than i expected throughout the day.

once again this product is such Show more

verenski's avatar

verenski

8 months ago
Review

Absolutely wonderful for damaged or dry skin. The milky texture is great and it soaks into the skin very well.

#absorbs well
#no scent
#works well