The INKEY List Collagen Booster Versus The INKEY List 1% Retinol Serum
Updated on June 18, 2024
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 3 ingredients in common
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, scar healing and better texture
Free From
They both do not contain any 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
The INKEY List Collagen Booster 15 ingredients
The INKEY List 1% Retinol Serum 24 ingredients
At a glance
Click on any of the items below to learn more
The INKEY List Collagen Booster 15 ingredients
The INKEY List 1% Retinol Serum 24 ingredients
Benefits
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Concerns
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Notable Ingredients
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Benefits
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Concerns
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Ingredients Side-by-side
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 is already naturally found in your skin. It helps moisturize and protect your skin.
Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:
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.
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.
Hydroxyethylcellulose is used to improve the texture of products. It is created from a chemical reaction involving ethylene oxide and alkali-cellulose. Cellulose is a sugar found in plant cell walls and help give plants structure.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
Leuconostoc/Radish Root Ferment Filtrate is a natural preservative. It comes from fermenting radish roots with a bacteria called leuconostoc. Leuconostoc comes from lactic acid. This bacteria is used to make the traditional Korean side-dish, kimchi. It is also used to make sourdough bread (both incredibly yummy foods).
Carbomer is a polymer of acrylic acid. Its main role is to create gel consistency within products.
4 Benefits May cause irritation
Hyaluronic acid is naturally found in healthy skin. It is a humectant, meaning it draws moisture to your skin.
Not safe for Fungal Acne
Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine isn't fungal acne safe and is a peptide.
Not safe for Fungal Acne
Palmitoyl Dipeptide-5 Diaminohydroxybutyrate isn't fungal acne safe and is a peptide.
Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
Not safe for Fungal Acne
Palmitoyl Tetrapeptide-7 is a peptide. Peptides are building blocks for protein.
Not safe for Fungal Acne
Palmitoyl Tripeptide-1 is a 3-amino acid peptide. Peptides are building blocks for protein.
Water, Glycerin, Butylene Glycol, Propanediol, Phenoxyethanol, Hydroxyethylcellulose, Disodium EDTA, Leuconostoc/Radish Root Ferment Filtrate, Carbomer, Hyaluronic Acid, Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine, Palmitoyl Dipeptide-5 Diaminohydroxybutyrate, Polysorbate 20, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1
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 is already naturally found in your skin. It helps moisturize and protect your skin.
Not safe for Fungal Acne
Prunus Armeniaca Kernel Oil is oil from the kernels of the Apricot, Prunus armeniaca L., Rosaceae. This oil is non-fragrant and non-volatile.
Helps hydrate Dry Skin Not safe for Fungal Acne
Persea Gratissima Oil is made by pressing dehydrated avocado fruit from the tree Persea gratissima, Lauraceae.
Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.
3 Concerns
Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Glyceryl Stearate Se is a self-emulsifying (SE) form of glyceryl stearate. Self-emusifying means this ingredient automatically blends with water. It is an emulsifier, emollient, and cleansing agent.
8 Benefits 3 Concerns
Retinol is a gold-standard ingredient for anti-aging. It is a form of Vitamin A and belongs to the class of retinoids that also includes tretinoin.
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.
This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.
Fragrance Preservative 6 Concerns
Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.
Phospholipids are naturally found in our skin as they are the main component of cell membranes. Phospholipids have humectant, emollient, antioxidant properties.
Antioxidant 4 Benefits May cause irritation
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.
Not safe for Fungal Acne
Glycine Soja Oil comes from the soybean. Glycine Soja is native to eastern Asia.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Dehydroacetic Acid is fungicide and bactericide. It is used as a preservative in cosmetics. Preservatives help elongate the shelf life of a product.
Polysorbate 60 is used to help stabilize products. It is a surfactant and emulsifier. These properties help keep ingredients together in a product. Surfactants help reduce surface tension between ingredients with different states, such as liquids and solids. Emulsifiers help prevent oils and waters from separating.
Sorbitan Isostearate is an emulsifer and cleaning agent. It is created from isostearic acid and sorbitol.
Glycine Soja Sterols is derived from the soybean plant. Sterols are an organic compound and technically an alcohol.
Fragrance
T-Butyl Alcohol it is most commonly used as a solvent.
Water, Glycerin, Prunus Armeniaca Kernel Oil, Persea Gratissima Oil, Caprylic/Capric Triglyceride, Squalane, Cetearyl Alcohol, Glyceryl Stearate Se, Retinol, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Benzyl Alcohol, Phospholipids, Tocopherol, Polyacrylate Crosspolymer-6, Glycine Soja Oil, Ethylhexylglycerin, Glycolipids, Dehydroacetic Acid, Polysorbate 60, Sorbitan Isostearate, Trisodium Ethylenediamine Disuccinate, Glycine Soja Sterols, T-Butyl Alcohol
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. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterGlycerin 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.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The INKEY List Collagen Booster 15 ingredients
The INKEY List 1% Retinol Serum 24 ingredients
