Here's our complete breakdown comparing the ingredients, attributes, and more of REN Clean Skincare Brightening Dark Circle Eye Cream versus Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum .
Published on September 20, 2021
Overview
What they are
These products are both reef safe eye moisturizers. They have a total of 3 ingredients in common
Cool Features
They both contain hyaluronic acid and Vitamin C
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, dark spots and better texture
Free From
They both do not contain any parabens or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Eye Moisturizer
Eye moisturizers help add moisture back into the skin around the eyes; these can be creams, gels, or serums.
Eye Moisturizer
Eye moisturizers help add moisture back into the skin around the eyes; these can be creams, gels, or serums.
Price
Ingredient Info
REN Clean Skincare Brightening Dark Circle Eye Cream 38 ingredients
Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum 26 ingredients
Contains Alcohol
Ingredients in this product that are types of alcohol:
Silicon Free
This product is free of silicons 🎉
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
Alcohol Free
This product is free of harsh alcohols 🎉
Contains Silicon
Ingredients in this product that are types of silicon:
Fragrance Free
This product is free of fragrances 🎉
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
At a glance
Click on any of the items below to learn more
REN Clean Skincare Brightening Dark Circle Eye Cream 38 ingredients
Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum 26 ingredients
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 4 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
REN Clean Skincare Brightening Dark Circle Eye Cream 38 ingredients
Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum 26 ingredients
Water • Undecane • Glycerin • Caprylic/Capric Triglyceride • Tridecane • Polyglyceryl-3 Polyricinoleate • Polyglyceryl-4 Isostearate • Butyrospermum Parkii Butter • Canola Oil Ethyl Esters • Avena Sativa Bran • Elaeis Guineensis Kernel Oil • Sorbitol • Simmondsia Chinensis Seed Oil • Calcium Ascorbate • Xylitylglucoside • Silica • Sodium Chloride • Anhydroxylitol • Coco-Caprylate/Caprate • Helianthus Annuus Seed • Helianthus Annuus Seed Wax • Propanediol • Benzyl Alcohol • Hydroxyacetophenone • Stearalkonium Hectorite • Xylitol • Glycogen • Polyglyceryl-3 Ricinoleate • Disteardimonium Hectorite • Sodium Hyaluronate • Propylene Carbonate • Glucose • Sambucus Nigra Flower Extract • Acacia Decurrens Extract • Rosa Hybrid Flower Wax • Polyglycerin-3 • Tocopherol • Citric Acid
Propylene Glycol • Dimethicone • Glycerin • Ascorbic Acid • Dimethicone Crosspolymer • Cetyl Peg/Ppg-10/1 Dimethicone • Cyclohexasiloxane • Water • Hydroxyethylpiperazine Ethane Sulfonic Acid • Lauroyl Lysine • Aluminum Starch Octenylsuccinate • Polysilicone-11 • CI 77891 • Adenosine • Hydrolyzed Hyaluronic Acid • Steareth-20 • Chlorhexidine Digluconate • N-Hydroxysuccinimide • Sodium Citrate • Potassium Sorbate • Palmitoyl Tripeptide-1 • Chrysin • Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate • Palmitoyl Tetrapeptide-7 • Citric Acid • Biotin
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterREN Clean Skincare Brightening Dark Circle Eye Cream contains this as ingredient number 1.
Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum contains this as ingredient number 8.
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 GlycerinREN Clean Skincare Brightening Dark Circle Eye Cream contains this as ingredient number 3.
Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum contains this as ingredient number 3.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
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.
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 look more even.
Read more about some other popular AHA's here:
Learn more about Citric AcidREN Clean Skincare Brightening Dark Circle Eye Cream contains this as ingredient number 38.
Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum contains this as ingredient number 25.
Here's what our community thinks of the ingredients in these two products.
REN Clean Skincare Brightening Dark Circle Eye Cream 38 ingredients
Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum 26 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
REN Clean Skincare Brightening Dark Circle Eye Cream 38 ingredients
Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum 26 ingredients
Alternatives
Our Dupe Finder has found 1 potential alternatives that have similar ingredients to REN Clean Skincare Brightening Dark Circle Eye Cream.
See 1 alternativesOur Dupe Finder has found 11 potential alternatives that have similar ingredients to Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum.
See 11 alternatives
