The INKEY List SuperSolutions 10% Azelaic Serum Redness Relief Solution Versus La Roche-Posay Toleriane Sensitive Riche
This calming serum is formulated around Azelaic Acid to calm redness and clear breakouts.
This barrier-repair moisturizer is formulated around Squalane and Butyrospermum Parkii Butter to strengthen the skin barrier and hydrate skin.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAzelaic Acid
Buffering
Propanediol
Solvent
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingPhenoxyethanol
Preservative
Acacia Senegal Gum
MaskingXanthan Gum
EmulsifyingAllantoin
Skin Conditioning
Glycerin
Humectant
Ethylhexylglycerin
Skin ConditioningPolysorbate 60
Emulsifying
Sorbitan Isostearate
Emulsifying
Maltodextrin
Absorbent
Sodium Hydroxide
BufferingHydrolyzed Gardenia Florida Extract
Antioxidant
Gardenia Florida Fruit Extract
Skin ConditioningPolylysine
Water, Azelaic Acid, Propanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Acacia Senegal Gum, Xanthan Gum, Allantoin, Glycerin, Ethylhexylglycerin, Polysorbate 60, Sorbitan Isostearate, Maltodextrin, Sodium Hydroxide, Hydrolyzed Gardenia Florida Extract, Gardenia Florida Fruit Extract, Polylysine
Water
Skin ConditioningIsocetyl Stearate
Emollient
Coco-Caprylate/Caprate
Emollient
Squalane
Emollient
Butyrospermum Parkii Butter
Skin Conditioning
Glycerin
Humectant
Propanediol
Solvent
Cetyl Alcohol
Emollient
Aluminum Starch Octenylsuccinate
Absorbent
Glyceryl Stearate
Emollient
Pentylene Glycol
Skin Conditioning
PEG-100 Stearate
Surfactant
Niacinamide
Smoothing
Cetearyl Alcohol
Emollient
Sodium Hydroxide
BufferingCaprylyl Glycol
Emollient
Citric Acid
Buffering
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingWater, Isocetyl Stearate, Coco-Caprylate/Caprate, Squalane, Butyrospermum Parkii Butter, Glycerin, Propanediol, Cetyl Alcohol, Aluminum Starch Octenylsuccinate, Glyceryl Stearate, Pentylene Glycol, PEG-100 Stearate, Niacinamide, Cetearyl Alcohol, Sodium Hydroxide, Caprylyl Glycol, Citric Acid, Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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.
Learn more about GlycerinPropanediol 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 PropanediolSodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideWater. 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!
Learn more about Water
