Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum Versus Prequel Multi-Quench Plumping Hydration Serum
Updated on June 25, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 11 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, 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
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Prequel Multi-Quench Plumping Hydration Serum 18 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Prequel Multi-Quench Plumping Hydration Serum 18 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Propanediol
Solvent
Butylene Glycol
Humectant
Glycereth-26
Humectant
Panthenol
Skin Conditioning
1,2-Hexanediol
Skin Conditioning
Polyglycerin-3
Humectant
C12-14 Pareth-12
EmulsifyingPhenoxyethanol
Preservative
Caprylyl Glycol
EmollientAmmonium Acryloyldimethyltaurate/Vp Copolymer
Betaine
Humectant
Xanthan Gum
EmulsifyingEthylhexylglycerin
Skin ConditioningAdenosine
Skin Conditioning
Carbomer
Emulsion StabilisingGlyceryl Acrylate/Acrylic Acid Copolymer
HumectantTromethamine
BufferingGlycereth-25 PCA Isostearate
Emulsifying
T-Butyl Alcohol
Perfuming
Tocopherol
Antioxidant
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
Water
Skin ConditioningGlycerin
Humectant
Butylene Glycol
Humectant
Polyglutamic Acid
Skin Conditioning
1,2-Hexanediol
Skin Conditioning
Ectoin
Skin Conditioning
Hibiscus Esculentus Fruit Extract
Skin ConditioningErythritol
Humectant
Phenoxyethanol
Preservative
Propanediol
Solvent
Xanthan Gum
EmulsifyingCaprylyl Glycol
EmollientCarbomer
Emulsion StabilisingEthylhexylglycerin
Skin ConditioningAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingTocopherol
Antioxidant
Citric Acid
Buffering
Sodium Hydroxide
BufferingWater, Glycerin, Butylene Glycol, Polyglutamic Acid, 1,2-Hexanediol, Ectoin, Hibiscus Esculentus Fruit Extract, Erythritol, Phenoxyethanol, Propanediol, Xanthan Gum, Caprylyl Glycol, Carbomer, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tocopherol, Citric Acid, Sodium Hydroxide
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.Â
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservativesÂ
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene GlycolCaprylyl 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 GlycolCarbomer is a polymer of acrylic acid. Its main role is to create a gel consistency.
A high amount of carbomer can cause pilling or balling up of products. Don't worry, most products contain 1% or less of carbomer.
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.
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 GlycerinPhenoxyethanol 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.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Â
It’s often used to:
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 PropanediolTocopherol (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 TocopherolWater. 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 WaterXanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumIngredient Ratings
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When to use
Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
Prequel Multi-Quench Plumping Hydration Serum 18 ingredients
Reviews
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Kiehl's Fast Release Wrinkle-Reducing 0.3% Retinol Night Serum 22 ingredients
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