The INKEY List Polyglutamic Acid Hydrating Serum Versus Bioderma Sensibio AR

The INKEY List Polyglutamic Acid Hydrating Serum Versus Bioderma Sensibio AR

This hydrating serum is formulated around Polyglutamic Acid to hydrate skin and strengthen the skin barrier.

This calming moisturizer is formulated around Laminaria Ochroleuca Extract and Glycyrrhetinic Acid to calm redness and hydrate skin.

What's inside

Key Ingredients

No key ingredients

Benefits

Concerns

Ingredients Side-by-side

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

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

Paraffinum Liquidum

Tridecyl Trimellitate

Glycol Palmitate

Caprylic/Capric Triglyceride

Canola Oil

Triceteareth-4 Phosphate

Fructooligosaccharides

Mannitol

Xylitol

Rhamnose

Laminaria Ochroleuca Extract

Glycyrrhetinic Acid

Glycine Soja Germ Extract

Allantoin

Ginkgo Biloba Leaf Extract

Camellia Sinensis Leaf Extract

Propylene Glycol

Pentylene Glycol

Glycol Stearate

PEG-2 Stearate

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

1,2-Hexanediol

Citric Acid

Xanthan Gum

Disodium EDTA

Sodium Hydroxide

Water, Paraffinum Liquidum, Glycerin, Tridecyl Trimellitate, Glycol Palmitate, Caprylic/Capric Triglyceride, Canola Oil, Triceteareth-4 Phosphate, Fructooligosaccharides, Mannitol, Xylitol, Rhamnose, Laminaria Ochroleuca Extract, Glycyrrhetinic Acid, Glycine Soja Germ Extract, Allantoin, Ginkgo Biloba Leaf Extract, Camellia Sinensis Leaf Extract, Propylene Glycol, Pentylene Glycol, Caprylyl Glycol, Glycol Stearate, PEG-2 Stearate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, 1,2-Hexanediol, Citric Acid, Xanthan Gum, Disodium EDTA, Sodium Hydroxide

Reviews

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.

Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.

Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.

Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.

This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

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. Remember to stay hydrated!

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