The Ordinary Amino Acids + B5 Versus The INKEY List Polyglutamic Acid Hydrating Serum
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 4 ingredients in common
Suited For
They're both likely to be good for dry skin and scar healing
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens 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 Ordinary Amino Acids + B5 26 ingredients
The INKEY List Polyglutamic Acid Hydrating Serum 25 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
The Ordinary Amino Acids + B5 26 ingredients
The INKEY List Polyglutamic Acid Hydrating Serum 25 ingredients
Benefits
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPropanediol
SolventBetaine
Humectant
Sodium PCA
HumectantPanthenol
Skin Conditioning
Sodium Lactate
BufferingArginine
Masking
PCA
HumectantAspartic Acid
MaskingGlycine
Buffering
Alanine
MaskingSerine
MaskingThreonine
Valine
MaskingProline
Skin ConditioningIsoleucine
Skin ConditioningLysine Hcl
Skin Conditioning
Histidine
HumectantPhenylalanine
MaskingGlutamic Acid
HumectantCitric Acid
Buffering
Dimethyl Isosorbide
SolventPolysorbate 20
Emulsifying
Trisodium Ethylenediamine Disuccinate
1,2-Hexanediol
Skin ConditioningCaprylyl Glycol
EmollientWater, Propanediol, Betaine, Sodium PCA, Panthenol, Sodium Lactate, Arginine, PCA, Aspartic Acid, Glycine, Alanine, Serine, Threonine, Valine, Proline, Isoleucine, Lysine Hcl, Histidine, Phenylalanine, Glutamic Acid, Citric Acid, Dimethyl Isosorbide, Polysorbate 20, Trisodium Ethylenediamine Disuccinate, 1,2-Hexanediol, Caprylyl Glycol
Water
Skin ConditioningDimethicone
Emollient
Butylene Glycol
Humectant
Bis-PEG-12 Dimethicone
Emollient
Glycerin
Humectant
Polymethylsilsesquioxane
Polysilicone-11
Phenoxyethanol
Preservative
Polyglutamic Acid
Skin Conditioning
Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingIsohexadecane
EmollientPropanediol
SolventCoco-Glucoside
CleansingSodium Benzoate
Masking
Hydroxyethylcellulose
Emulsion StabilisingPolysorbate 80
Emulsifying
Ethylhexylglycerin
Skin ConditioningPotassium Sorbate
Preservative
Decyl Glucoside
CleansingDimethylacrylamide/Acrylic Acid/Polystyrene Ethyl Methacrylate Copolymer
Skin ConditioningSorbitan Oleate
Emulsifying
Trisodium Ethylenediamine Disuccinate
Caprylyl Glycol
EmollientHexylene Glycol
EmulsifyingOryza Sativa Bran Extract
Skin Conditioning
Water, Dimethicone, Butylene Glycol, Bis-PEG-12 Dimethicone, Glycerin, Polymethylsilsesquioxane, Polysilicone-11, Phenoxyethanol, Polyglutamic Acid, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, Propanediol, Coco-Glucoside, Sodium Benzoate, Hydroxyethylcellulose, Polysorbate 80, Ethylhexylglycerin, Potassium Sorbate, Decyl Glucoside, Dimethylacrylamide/Acrylic Acid/Polystyrene Ethyl Methacrylate Copolymer, Sorbitan Oleate, Trisodium Ethylenediamine Disuccinate, Caprylyl Glycol, Hexylene Glycol, Oryza Sativa Bran Extract
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 WaterPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
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 PropanediolTrisodium Ethylenediamine Disuccinate is used to help stabilize a product.
It is a chelating agent, meaning it helps prevent metal ions from binding to other ingredients. This prevents unwanted reactions in products. Metal ions can come into a product via the water ingredient. They are found in trace amounts and are not known to be harmful.
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 GlycolIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The Ordinary Amino Acids + B5 26 ingredients
The INKEY List Polyglutamic Acid Hydrating Serum 25 ingredients
Reviews
Here's what our community thinks
The Ordinary Amino Acids + B5 26 ingredients
Not good for me
I have dry skin and I thought this product would be great for me. It burned a little bit and broke me out like crazy after a few days of using. I gave it to my mom and it worked for her. Do not buy this if you have sensitive skin.
a thin, oil-like serum- do not buy if you hate any sort of greasy-like feeling. Worked amazing with my combination skin, especially through winter on any dry patches. Did not break me out and helped my skin to appear brighter and more even. While it is an oil based serum, it absorbs nicely and layers well with other serums considering they aren’t overdone. Product i have repurchased more than Show more
The INKEY List Polyglutamic Acid Hydrating Serum 25 ingredients
I've been checking out products with Polyglutamic Acid, since it can hold up to four times more moisture than Hyaluronic Acid. The serum smells slightly chemical like many INKEY List products. It is quite good and leaves my dry skin very hydrated and moisturized. Would probably buy it again, if it weren't for the pilling. [Updated: Rating]
I must have after Hyaluronic Acid serum. Just locks everything in. Also a great primer before makeup.
