Here's our complete breakdown comparing the ingredients, attributes, and more of Sunday Riley A+ High-Dose Retinol Serum versus Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum .
Published on December 03, 2022
Overview
What they are
These products are both reef safe serums. They have a total of 7 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, sensitive skin and scar healing
Free From
They both do not contain any common allergens, parabens or sulfates
What's Inside
They both contain harsh alcohols and 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
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Contains Alcohol
Ingredients in this product that are types of alcohol:
Contains Silicon
Ingredients in this product that are types of silicon:
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 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not 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
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Notable Ingredients
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:
Benefits
This product contains 4 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:
This product contains 2 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 2 ingredients 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:
Concerns
This product contains 3 ingredients that may have this attribute:
This product contains 6 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:
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.
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Water • Propanediol • Dimethyl Isosorbide • Triheptanoin • Dimethicone • Glycerin • Pentylene Glycol • Hexyldecanol • Disiloxane • Cetyl Peg/Ppg-10/1 Dimethicone • Diheptyl Succinate • Propylene Carbonate • Hydroxypinacolone Retinoate • Ppg-24-Glycereth-24 • Phenyl Trimethicone • Retinol • Ubiquinone • Honey Extract • Sodium Hyaluronate Crosspolymer • Algae Extract • Zingiber Officinale Extract • Opuntia Ficus-Indica Fruit Extract • Bisabolol • Butyrospermum Parkii Butter • Phospholipids • Saccharomyces Cerevisiae Extract • Lecithin • Sodium Acrylates Copolymer • Hydrogenated Polyisobutene • 1,2-Hexanediol • 4-T-Butylcyclohexanol • Polyglyceryl-10 Stearate • Caprylyl Glycol • Helianthus Annuus Seed Oil • Sorbitol • Cetylhydroxyproline Palmitamide • Polysilicone-11 • Benzoic Acid • Dehydroacetic Acid • Sodium Phytate • Glyceryl Polyacrylate • Polysorbate 80 • Hydroxyphenyl Propamidobenzoic Acid • Stearic Acid • Brassica Campestris Sterols • Pvp • Capryloyl Glycerin/Sebacic Acid Copolymer • Sodium Benzoate • Alcohol • Potassium Phosphate • Decyl Glucoside • Phenoxyethanol • Hexylene Glycol • Potassium Sorbate • Tocopherol
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 WaterSunday Riley A+ High-Dose Retinol Serum contains this as ingredient number 1.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 1.
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.
Propanediol is not likely to cause sensitivity and considered safe to use.
It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolSunday Riley A+ High-Dose Retinol Serum contains this as ingredient number 2.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 3.
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 GlycerinSunday Riley A+ High-Dose Retinol Serum contains this as ingredient number 6.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 2.
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.
Sunday Riley A+ High-Dose Retinol Serum contains this as ingredient number 30.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 7.
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolSunday Riley A+ High-Dose Retinol Serum contains this as ingredient number 33.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 11.
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.
Sunday Riley A+ High-Dose Retinol Serum contains this as ingredient number 52.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 10.
Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolSunday Riley A+ High-Dose Retinol Serum contains this as ingredient number 55.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum contains this as ingredient number 22.
Here's what our community thinks of the ingredients in these two products.
Sunday Riley A+ High-Dose Retinol Serum 55 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
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Reviews
Here's what our community thinks
Sunday Riley A+ High-Dose Retinol Serum 55 ingredients
Definitely high-dose retinol!
This is a powerful retinol serum that is no joke. I tried easing into it by going every other night, then moved to every night. I ended up with signs of a damaged skin barrier (redness) on my chin. I'm going...
Definitely high-dose retinol!
This is a powerful retinol serum that is no joke. I tried easing into it by going every other night, then moved to every night. I ended up with signs of a damaged skin barrier (redness) on my chin. I'm going to lay off this on my chin for a couple weeks, then try again, but stick to every other night. I like that I'm getting a strong dose of an excellent skincare ingredient, but I need to take care not to overdo it.
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Alternatives
Our Dupe Finder has found 9 potential alternatives that have similar ingredients to Sunday Riley A+ High-Dose Retinol Serum.
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