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Updated on June 19, 2024

Overview

What they are

These products are both cruelty-free and reef safe serums. They have a total of 5 ingredients in common

Cool Features

They both contain hyaluronic acid

Suited For

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

Free From

They both do not contain any harsh alcohols, common allergens, 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.

The INKEY List Hyaluronic Acid Serum EU
No7 HydraLuminous Water Concentrate

Ingredient Info

Click any item below to learn more and see relevant ingredients
ph level
6.21

At a glance

Click on any of the items below to learn more

Benefits

Concerns

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Hyaluronic Acid 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.

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.
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.
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.
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 ->
Ammonium Acryloyldimethyltaurate/Vp Copolymer

Ammonium Acryloyldimethyltaurate/Vp Copolymer (let's call it AAVC for short) is a synthetically created polymer. It's used as a film-forming agent and used to thicken the consistency of products.

Disliked Full details ->
Leuconostoc/Radish Root Ferment Filtrate Antimicrobial

Leuconostoc/Radish Root Ferment Filtrate is a natural preservative. It comes from fermenting radish roots with a bacteria called leuconostoc. Leuconostoc comes from lactic acid. This bacteria is used to make the traditional Korean side-dish, kimchi. It is also used to make sourdough bread (both incredibly yummy foods).

Hyaluronic Acid Humectant, Moisturising, Skin Conditioning
Hyaluronic Acid IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation Icon
Hyaluronic AcidHyaluronic Acid Icon 4 Benefits May cause irritationMay cause irritation Icon

Hyaluronic acid is naturally found in healthy skin. It is a humectant, meaning it draws moisture to your skin.

Carbomer Emulsion Stabilising, Gel Forming
1 / 0

Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.

1 Com. / 0 Irr.
Disliked Full details ->
Sodium Lactate Buffering, Humectant

Sodium Lactate is the sodium salt of lactic acid, an AHA. It is a humectant and used to adjust the pH of a product.

Polysorbate 20 Emulsifying
0 / 0 Not safe for Fungal Acne Icon
Not safe for Fungal AcneNot safe for Fungal Acne Icon

Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.

0 Com. / 0 Irr.
Very Disliked Full details ->
Palmitoyl Tetrapeptide-7 Skin Conditioning
Peptide IconNot safe for Fungal Acne Icon
PeptidePeptide Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Palmitoyl Tetrapeptide-7 is a peptide. Peptides are building blocks for protein.

Palmitoyl Tripeptide-1 Skin Conditioning
Peptide IconNot safe for Fungal Acne Icon
PeptidePeptide Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Palmitoyl Tripeptide-1 is a 3-amino acid peptide. Peptides are building blocks for protein.

HydraLuminous Water Concentrate
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.

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.
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 ->
Xylitylglucoside Humectant, Skin Conditioning

Xylitylglucoside is created from xylitol and glucose, two humectants.

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 ->
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.
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.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer Emulsion Stabilising

Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken and improve the texture of products.

Disliked Full details ->
Anhydroxylitol Humectant, Skin Conditioning

This ingredient is created from dehydrating xylitol in acidic conditions. Xylitol is a famous sugar and humectant.

Tocopheryl Acetate Antioxidant, Skin Conditioning
0 / 0 Vitamin E IconAntioxidant IconHelps brighten skin Icon
Vitamin EVitamin E Icon AntioxidantAntioxidant Icon Helps brighten skinHelps brighten skin Icon

Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.

0 Com. / 0 Irr.
Caprylyl Glycol Emollient, Humectant, Skin Conditioning

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

Sodium Benzoate Masking, Preservative
Preservative Icon
PreservativePreservative Icon

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Disliked Full details ->
Xylitol Humectant, Skin Conditioning

Xylitol is a humectant and prebiotic. It can help with dry skin.

Ascorbyl Glucoside Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon
Vitamin CVitamin C Icon AntioxidantAntioxidant Icon 6 Benefits

Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.

Propylene Glycol Humectant, Skin Conditioning, Solvent
0 / 0 May worsen Eczema Icon
May worsen EczemaMay worsen Eczema Icon

Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.

0 Com. / 0 Irr.
Disliked Full details ->
Potassium Hydroxide Buffering

Potassium hydroxide is commonly known as caustic potash. It is used to fix the pH of a product or as a cleaning agent in soap. In cleansers, it is used for the saponification of oils.

Very Disliked Full details ->
Tetrasodium EDTA

Tetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.

Disliked 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.

Parfum Masking, Perfuming
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon
FragranceFragrance Icon 2 Concerns

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Very Disliked Full details ->
Glucose Humectant

Glucose is a simple sugar and is the most important source of energy in all organisms.

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.
Panax Ginseng Root Extract Emollient, Skin Protecting, Tonic
Helps hydrate Dry Skin IconHelps reduce Skin Redness Icon
2 Benefits

Panax Ginseng Root is a popular herb from Asia. This root contains antioxidants, favonoids, and vitamins B12 and D.

Dipropylene Glycol Masking, Solvent

Dipropylene Glycol is a synthetically created stabilizer and solvent. It is a part of the glycol class in the alcohol family.

Disliked Full details ->
Morus Alba Leaf Extract Skin Conditioning

We don't have a description for Morus Alba Leaf Extract.

Unknown Full details ->

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
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
Humectant, Skin Conditioning, Skin Protecting
Loved

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

A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.

As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.

Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.

Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.

In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.

This ingredient is organic, colorless, odorless, and non-toxic.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Learn more about Glycerin
Humectant, Masking, Skin Conditioning
Mixed

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

  • It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
  • It is a humectant, which means that it helps attract moisture into the skin.
  • It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

Preservative
Very Disliked

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.

Ingredient Ratings

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

Hyaluronic Acid Serum
9
1
4
liked
mixed
disliked
not rated
HydraLuminous Water Concentrate
12
2
9
1
liked
mixed
disliked
not rated

When to use

1,078 Routines
50% use in am
51% use in pm
97% use every day
When to use See routines that use it ->
12 Routines
58% use in am
42% use in pm
100% use every day

Reviews

Here's what our community thinks

The INKEY List Hyaluronic Acid Serum 14 ingredients

3.8 /5
from 0 ratings
Light (2) Great Value (2) Hydrating (2)
sophia_teigiser's avatar

sophia_teigiser

2 years ago · Combination Skin
Review

AMAZING
I have used this serum right after cleansing and when my face is damp. It instantly makes my face feel hydrated and smooth. Definitely...

AMAZING
I have used this serum right after cleansing and when my face is damp. It instantly makes my face feel hydrated and smooth. Definitely would recommend to all skin types!!

YusraBabar_214's avatar

YusraBabar_214

1 year ago · Normal Skin
Review

Gave me acne
I bought this because i heard a lot about it. I have a normal skin with no acne on my face but after using this i started to get...

Gave me acne
I bought this because i heard a lot about it. I have a normal skin with no acne on my face but after using this i started to get little pimples and i gave it to my friend. Try this before adding this into your routine.

No7 HydraLuminous Water Concentrate 24 ingredients

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