The INKEY List Polyglutamic Acid Hydrating Serum Versus Skincyclopedia 3% Polyglutamic Acid Face Serum
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 5 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 INKEY List Polyglutamic Acid Hydrating Serum 25 ingredients
Skincyclopedia 3% Polyglutamic Acid Face Serum 7 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
The INKEY List Polyglutamic Acid Hydrating Serum 25 ingredients
Skincyclopedia 3% Polyglutamic Acid Face Serum 7 ingredients
Benefits
Concerns
Benefits
Concerns
Ingredients Side-by-side
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 WaterButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
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.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Polyglutamic Acid is made up many glutamic acids chained together. It is created from bacterial fermentation.
This ingredient is an effective skin hydrator and may help speed up wound healing. As a humectant, it draws and holds water to the skin. This ingredient is often compared to hyaluronic acid or glycerin. Similarly to hyaluronic acid, it can vary in molecular weights. This means polyglutamic acid is capable of bringing hydration to lower levels of the skin.
Fun fact: Polyglutamic Acid is found in the Japanese food, natto. It is also being used in cancer treatment studies.
Learn more about Polyglutamic AcidHydroxyethylcellulose 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.
This ingredient helps stabilize products by preventing ingredients from separating. It can also help thicken the texture of a product.
This ingredient can also be found in pill medicines to help our bodies digest other ingredients.
Learn more about HydroxyethylcelluloseIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
The INKEY List Polyglutamic Acid Hydrating Serum 25 ingredients
Skincyclopedia 3% Polyglutamic Acid Face Serum 7 ingredients
Reviews
Here's what our community thinks
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.
