Explore Routine Login
Versus

The INKEY List Hyaluronic Acid Hydrating Hair Treatment Versus Necessaire The Scalp Serum

Hair Serum
Serum
British Brand United Kingdom
Brand

Updated on October 25, 2023

Overview

What they are

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

Cool Features

They both contain hyaluronic acid

Suited For

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

Free From

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

What's Inside

They both contain 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

At a glance

Click on any of the items below to learn more

Notable Ingredients

Benefits

Concerns

Notable Ingredients

Benefits

Ingredients Side-by-side

found in both products
Hyaluronic Acid Hydrating Hair Treatment
Water 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.

Peg-40 Hydrogenated Castor Oil Emulsifying
Oil IconNot safe for Fungal Acne Icon
OilOil Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Peg-40 Hydrogenated Castor Oil is derived from castor oil and polyethylene glycol (PEG). It is used as a emollient and emulsifier.

Very Disliked Full details ->
Betaine Humectant, Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation Icon
3 Benefits

Betaine is a common humectant (a substance that promotes retention of moisture). It's known to be gentle on the skin and can help balance hydration.

Panthenol Skin Conditioning
0 / 0 Helps reduce irritation Icon
Helps reduce irritationHelps reduce irritation Icon

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

0 Com. / 0 Irr.
Phenoxyethanol Preservative
Preservative Icon
PreservativePreservative Icon

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.

Very Disliked Full details ->
Polyquaternium-37

We don't have a description for Polyquaternium-37.

Citronellyl Methylcrotonate Masking, Perfuming
Fragrance Icon
FragranceFragrance Icon

Citronellyl Methylcrotonate is a fragrance.

Unknown Full details ->
Ethylhexylglycerin Skin Conditioning

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

Hydrolyzed Hyaluronic Acid Humectant, Skin Conditioning
Hyaluronic Acid Icon
Hyaluronic AcidHyaluronic Acid Icon

Hydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.

Trisodium Ethylenediamine Disuccinate

Trisodium Ethylenediamine Disuccinate is used to help stabilize a product.

Lactic Acid Buffering, Humectant, Skin Conditioning
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon
AHAAHA Icon 6 Benefits 3 Concerns

Lactic Acid is an AHA that is derived from fermenting lactose, a carbohydrate from milk. It removes the top layer of old and dead skin cells and helps increase cell turnover.

Sodium Hyaluronate Humectant, Skin Conditioning
0 / 0 Hyaluronic Acid Icon
Hyaluronic AcidHyaluronic Acid Icon

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

0 Com. / 0 Irr.
The Scalp Serum
Water 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.

Butylene Glycol Humectant, Masking, Skin Conditioning
1 / 0

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

1 Com. / 0 Irr.
Propanediol Solvent

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Sodium Hyaluronate Humectant, Skin Conditioning
0 / 0 Hyaluronic Acid Icon
Hyaluronic AcidHyaluronic Acid Icon

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

0 Com. / 0 Irr.
Acetyl Tetrapeptide-3 Skin Protecting
Peptide Icon
PeptidePeptide Icon

Acetyl Tetrapeptide-3 is a peptide.

Niacinamide Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconGood for Minimizing Pores IconGood for Dark Spots IconHelps fight Acne IconHelps brighten skin Icon
NiacinamideNiacinamide Icon 6 Benefits

Niacinamide has emerged as an all-star ingredient due to its many benefits.

Panthenol Skin Conditioning
0 / 0 Helps reduce irritation Icon
Helps reduce irritationHelps reduce irritation Icon

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

0 Com. / 0 Irr.
Trifolium Pratense Flower Extract Astringent, Masking
Good for Minimizing Pores Icon
Good for Minimizing PoresGood for Minimizing Pores Icon

Trifolium Pratense Flower Extract can help to reduce large pores.

Unknown Full details ->
Apium Graveolens Seed Extract Antioxidant, Perfuming
Antioxidant IconFragrance Icon
AntioxidantAntioxidant Icon FragranceFragrance Icon

Apium Graveolens Seed Extract is an antioxidant and is a fragrance.

Unknown Full details ->
Camellia Sinensis Leaf Extract Antimicrobial, Antioxidant, Astringent
Antioxidant IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconHelps fight Acne Icon
AntioxidantAntioxidant Icon 5 Benefits

Camellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.

Biotinoyl Tripeptide-1
Peptide Icon
PeptidePeptide Icon

Biotinoyl Tripeptide-1 is a peptide.

Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-86
Peptide Icon
PeptidePeptide Icon

Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-86 is a peptide.

Unknown Full details ->
Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-9
Peptide Icon
PeptidePeptide Icon

Nicotiana Benthamiana Hexapeptide-40 Sh-Polypeptide-9 is a peptide.

Unknown Full details ->
Nicotiana Benthamiana Hexapeptide-40 Sh-Oligopeptide-1 Skin Conditioning
Peptide Icon
PeptidePeptide Icon

Nicotiana Benthamiana Hexapeptide-40 Sh-Oligopeptide-1 is a peptide.

Unknown Full details ->
Sodium Tocopheryl Phosphate Antioxidant, Emulsifying, Emulsion Stabilising
Antioxidant Icon
AntioxidantAntioxidant Icon

Sodium Tocopheryl Phosphate is an antioxidant.

Unknown Full details ->
Dextran

We don't have a description for Dextran.

Unknown Full details ->
1,2-Hexanediol Skin Conditioning, Solvent

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.

Caprylhydroxamic Acid

Caprylhydroxamic Acid is a chelating agent.

Citric Acid Buffering, Masking
AHA IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation IconMay worsen Rosacea Icon
AHAAHA Icon 4 Benefits 2 Concerns

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

Disliked Full details ->
Glycerin Humectant, Skin Conditioning, Skin Protecting
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon
2 Benefits

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

0 Com. / 0 Irr.

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
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. If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
Skin Conditioning
Loved

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

This ingredient is also referred to as pro-vitamin B5 or dexpanthenol in dermatology.

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.

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

Learn more about Panthenol
Humectant, Skin Conditioning
Loved

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

Ingredient Ratings

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

Hyaluronic Acid Hydrating Hair Treatment
8
1
2
1
liked
mixed
disliked
not rated
The Scalp Serum
10
2
1
7
liked
mixed
disliked
not rated

When to use

5 Routines
40% use in am
60% use in pm
40% use every day
3 Routines
67% use in am
33% use in pm
100% use every day