Versus

Kérastase Genesis Homme Anti Hair-Fall Fortifying Serum - Brazil Versus Sephora Collection Strengthening Hair Serum with Biotin and Phytoprotiens

Hair Serum
Hair Serum
French Brand France
French Brand France

Updated on November 07, 2024

Overview

What they are

These products are both reef safe hair serums. They have a total of 5 ingredients in common

Suited For

They're both likely to be good for dry skin, brightening skin and scar healing

Free From

They both do not contain any parabens, silicones or sulfates

What's Inside

They both contain common allergens and fragrances

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

Key Ingredients

Benefits

Concerns

Benefits

Concerns

Ingredients Side-by-side

found in both products

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
Masking, Skin Conditioning

Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.

As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.

Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.

Learn more about Arginine
Buffering, Masking

Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).

As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.

If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.

Read more about some other popular AHA's here:

Learn more about Citric Acid
Perfuming, Solvent

Limonene is a fragrance that adds scent and taste to a formulation.

It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".

Limonene acts as an antioxidant, meaning it helps neutralize free radicals.

When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.

The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.

Learn more about Limonene
Perfuming

Citral is a fragrance and used to add a lemon-like scent to products. It is both naturally found in plants and created synthetically. In plants, it is commonly occurring in lemon myrtle, lemongrass, lemon tea-tree, lemon verbena, and other citruses.

The EU mandates Citral be listed separately as a fragrance. It is a known allergen and may cause contact dermatitis. Citral can also used as a masking ingredient.

The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.

The term 'citral' is a collective term for two geometric isomers: geranial/Citral A and neral/Citral B.

Learn more about Citral

When to use

1 Routine
0% use in am
100% use in pm
100% use every day
1 Routine
100% use in am
0% use in pm
100% use every day

Reviews

Here's what our community thinks

Kérastase Genesis Homme Anti Hair-Fall Fortifying Serum 27 ingredients

Genesis Homme Anti Hair-Fall Fortifying Serum hasn't been rated yet.
Rate it now

Sephora Collection Strengthening Hair Serum with Biotin and Phytoprotiens 17 ingredients

5.0 /5
from 1 rating
Cleansing (1) Soft (1) Straight Hair (1)
natalieparalova's avatar

Nathall Paral 🤍

9 months ago
Review

I bought it in a package with scalp brush and I decided to incorporate it to my hair-care routine. It has no scent, has a watery texture and is so so SOOOO soothing. When my scalp is irritated from the sun or scalp brush, it calms the irritation and the redness fades in a DAY! I use it every time my hair dries out after washing on SCALP AND MIDS ONLY! For ends, I use BIO argan oil, which helps my Show more

#cleansing
#soft
#volume
#straight hair