Here's our complete breakdown comparing the ingredients, attributes, and more of Medik8 Crystal Retinal 10 versus Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum .
Published on February 16, 2023
Overview
What they are
These products are both serums. They have a total of 5 ingredients in common
Cool Features
They both contain Vitamin E
Suited For
They're both likely to be good for anti aging, 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 fragrances
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Price
Ingredient Info
Medik8 Crystal Retinal 10 47 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Alcohol Free
This product is free of harsh alcohols 🎉
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:
Not Reef Safe
Ingredients in this product that are not reef safe:
Contains EU Allergens
Ingredients in this product that are EU allergens:
Vegan
This product is vegan 🎉
Cruelty Free
This product is cruelty-free 🎉
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 🎉
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
Medik8 Crystal Retinal 10 47 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Notable Ingredients
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 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients 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 3 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 2 ingredients that may have this attribute:
Concerns
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:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
Benefits
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 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Medik8 Crystal Retinal 10 47 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Water • Caprylic/Capric Triglyceride • Glycerin • Isododecane • Cetearyl Olivate • Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer • Cetearyl Alcohol • Ppg-12/Smdi Copolymer • Sorbitan Olivate • Tocopheryl Acetate • Titanium Dioxide • Squalane • Eclipta Prostrata Extract • Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer • Phenoxyethanol • Cyclodextrin • Hydroxypropyl Methylcellulose • Sodium Hyaluronate • Ascorbyl Tetraisopalmitate • Melia Azadirachta Leaf Extract • Alumina • Isostearic Acid • Lecithin • Polyglyceryl-3 Polyricinoleate • Disodium EDTA • Hydroxyacetophenone • Polyhydroxystearic Acid • Stearic Acid • Ethylhexylglycerin • 3-O-Ethyl Ascorbic Acid • Daucus Carota Sativa Seed Oil • Sodium Polyaspartate • Climbazole • Retinal • Dipteryx Odorata Bean Extract • Lonicera Japonica Flower Extract • Lonicera Caprifolium Flower Extract • Rubus Chamaemorus Seed Oil • Moringa Oleifera Seed Oil • Polysorbate 60 • Sorbitan Isostearate • Pentylene Glycol • Vanilla Planifolia Fruit Extract • Decylene Glycol • BHA • 1,2-Hexanediol • Coumarin
Water • Glycerin • Propanediol • Butylene Glycol • Glycereth-26 • Panthenol • 1,2-Hexanediol • Polyglycerin-3 • C12-14 Pareth-12 • Phenoxyethanol • Caprylyl Glycol • Ammonium Acryloyldimethyltaurate/Vp Copolymer • Betaine • Xanthan Gum • Ethylhexylglycerin • Adenosine • Carbomer • Glyceryl Acrylate/Acrylic Acid Copolymer • Tromethamine • Glycereth-25 PCA Isostearate • T-Butyl Alcohol • Tocopherol
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 WaterMedik8 Crystal Retinal 10 contains this as ingredient number 1.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 1.
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 GlycerinMedik8 Crystal Retinal 10 contains this as ingredient number 3.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 2.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.
Medik8 Crystal Retinal 10 contains this as ingredient number 15.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 10.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Medik8 Crystal Retinal 10 contains this as ingredient number 29.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 15.
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.
In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.
Medik8 Crystal Retinal 10 contains this as ingredient number 46.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 7.
Here's what our community thinks of the ingredients in these two products.
Medik8 Crystal Retinal 10 47 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Medik8 Crystal Retinal 10 47 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Reviews
Here's what our community thinks
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Alternatives
Our Dupe Finder has found 6 potential alternatives that have similar ingredients to Medik8 Crystal Retinal 10.
See 6 alternativesOur Dupe Finder has found 50 potential alternatives that have similar ingredients to Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum.
See 50 alternatives
