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Kiehl's Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum Versus Is Clinical Hydra-Cool Serum

Serum
Serum
American Brand United States
American Brand United States

Overview

What they are

These products are both fungal acne (malassezia) safe and reef safe serums. They have a total of 3 ingredients in common

Cool Features

They both contain hyaluronic acid

Free From

They both do not contain any harsh alcohols, 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

At a glance

Click on any of the items below to learn more

Benefits

Concerns

Ingredients Side-by-side

found in both products
Ultra Pure High-Potency 1.5% 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.

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.
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.
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 ->
Chlorphenesin Antimicrobial, Preservative
Preservative Icon
PreservativePreservative Icon

Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.

Disliked Full details ->
Tetrasodium Glutamate Diacetate

Tetrasodium Glutamate Diacetate is a chelating agent. Chelating agents help prevent metal ions from binding to other ingredients. This helps prevent unwanted effects and reactions from a product. These metal ions may come from water and are found in miniscule amounts.

Unknown Full details ->
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 ->
Hydra-Cool 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.

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.
Calcium Pantothenate

Calcium Pantothenate is calcium salt from Vitamin B5. It can be naturally found in plants and animals.

Pentylene Glycol Skin Conditioning, Solvent

Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.

Menthol Masking, Refreshing
May cause irritation IconEU Allergen IconMay worsen Rosacea Icon
3 Concerns

Menthol is a compound found in mint plants, such as peppermint. In its pure form, it is a clear crystalline substance.

Very Disliked Full details ->
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 ->
Asiaticoside Antioxidant, Skin Conditioning
Antioxidant Icon
AntioxidantAntioxidant Icon

Asiaticoside comes from the super popular skin-soothing ingredient, Centella asiatica. It is one of four active compounds found in the extract of Centella Asiatica.

Polyporus Umbellatus Extract Skin Protecting

We don't have a description for Polyporus Umbellatus Extract.

Unknown Full details ->
Asiatic Acid Skin Conditioning, Stabilising

Asiatic Acid is a major component of Centella Asiatica Extract. It has wound-healing, anti-inflammatory, and antioxidant properties.

Madecassic Acid Skin Conditioning

Madecassic Acid is a major component of Centella Asiatica Extract. It has anti-inflammatory and antioxidant properties.

CI 42090 Cosmetic Colorant

Ci 42090 is a synthetic dye created from petroleum. It is used to give a bright blue color to cosmetics, medicine, and food.

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
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 products.

Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum
3
3
1
liked
mixed
disliked
not rated
Hydra-Cool Serum
6
1
2
2
liked
mixed
disliked
not rated

When to use

42 Routines
55% use in am
45% use in pm
93% use every day
When to use See routines that use it ->
28 Routines
46% use in am
54% use in pm
100% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Kiehl's Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum 7 ingredients

Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum hasn't been rated yet.
Rate it now

Is Clinical Hydra-Cool Serum 11 ingredients

5.0 /5
from 1 rating
AVRILLOVESDRUSILLA's avatar

AVRILLOVESDRUSILLA

1 year ago · Combination Skin
Review

HELPS WITH REDNESS, IRRITATION, PERIORAL DERMATITIS, AND INFLAMED ACNE