Bioderma Sébium Kerato+ Versus Tebiskin OSK Cream
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDi-C12-13 Alkyl Malate
EmollientPropanediol
Solvent
Propylheptyl Caprylate
EmollientGlycerin
Humectant
Salicylic Acid
Masking
Sodium Polyacryloyldimethyl Taurate
Emulsion StabilisingArachidyl Alcohol
Emollient
Dimethicone
Emollient
Cetearyl Alcohol
Emollient
Behenyl Alcohol
Emollient
Coco-Glucoside
Cleansing
Arachidyl Glucoside
EmulsifyingSodium Hydroxide
BufferingSodium Citrate
BufferingChondrus Crispus Extract
Skin Conditioning
Mannitol
Humectant
Propyl Gallate
Antioxidant
Xylitol
Humectant
Rhamnose
HumectantSodium Metabisulfite
Antioxidant
Tocopherol
Antioxidant
Parfum
Masking
Water, Di-C12-13 Alkyl Malate, Propanediol, Propylheptyl Caprylate, Glycerin, Salicylic Acid, Sodium Polyacryloyldimethyl Taurate, Arachidyl Alcohol, Dimethicone, Cetearyl Alcohol, Behenyl Alcohol, Coco-Glucoside, Arachidyl Glucoside, Sodium Hydroxide, Sodium Citrate, Chondrus Crispus Extract, Mannitol, Propyl Gallate, Xylitol, Rhamnose, Sodium Metabisulfite, Tocopherol, Parfum
Water
Skin ConditioningTriethyl Citrate
Masking
Cetearyl Alcohol
Emollient
Ethyl Linoleate
Emollient
Glycerin
Humectant
Polymethylsilsesquioxane
Dimethicone/Divinyldimethicone/Silsesquioxane Crosspolymer
Humectant
Glycol Palmitate
Emulsifying
Dimethyl Sulfone
SolventOligopeptide-10
Antimicrobial
Salicylic Acid
Masking
Sodium Hyaluronate
Humectant
Arachidyl Alcohol
Emollient
Copernicia Cerifera Wax
Pentylene Glycol
Skin Conditioning
Cetearyl Glucoside
Emulsifying
Bis-Ethylhexyl Hydroxydimethoxy Benzylmalonate
Antioxidant
Benzyl Alcohol
Perfuming
Caprylyl Glycol
Emollient
Arachidyl Glucoside
EmulsifyingHydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingCaprylhydroxamic Acid
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Lauric Acid
Cleansing
Lauryl Alcohol Diphosphonic Acid
Emulsion StabilisingSodium Hydroxide
BufferingWater, Triethyl Citrate, Cetearyl Alcohol, Ethyl Linoleate, Glycerin, Polymethylsilsesquioxane, Dimethicone/Divinyldimethicone/Silsesquioxane Crosspolymer, Glycol Palmitate, Dimethyl Sulfone, Oligopeptide-10, Salicylic Acid, Sodium Hyaluronate, Arachidyl Alcohol, Copernicia Cerifera Wax, Pentylene Glycol, Cetearyl Glucoside, Bis-Ethylhexyl Hydroxydimethoxy Benzylmalonate, Benzyl Alcohol, Caprylyl Glycol, Arachidyl Glucoside, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Caprylhydroxamic Acid, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Lauric Acid, Lauryl Alcohol Diphosphonic Acid, Sodium Hydroxide
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Arachidyl Alcohol is a fatty alcohol made from the the arachidic acid found in peanut oil.
Despite having "alcohol" in the name, it is not related to denatured alcohol or ethanol.
This ingredient is a multitasker:
Just be sure to patch this ingredient if you have a peanut allergy (though this ingredient is highly processed and the allergenic proteins are typically removed).
Learn more about Arachidyl AlcoholThis ingredient is a plant-based surfactant and emulsifier. It helps oil and water based ingredients mix evenly to improve formula stability without adding a "greasy" feel.
Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier.
Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient.
It plays several roles in a formula:
Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products.
Multiple assessments have found it to be non-irritating and non-sensitizing to most people.
However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers.
Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy.
Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans.
Remember comedogenic ratings are unable to assess the entire formula of a product or how it will react on your skin. Just be sure to patch test if you are unsure about certain ingredients.
This ingredient is not fungal acne safe. Cetearyl alcohol is a fatty alcohol with chain lengths that fall within the range that Malassezia can metabolize.
Learn more about Cetearyl AlcoholGlycerin (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 GlycerinSalicylic Acid (also known as beta hydroxy acid or BHA) is a well-known ingredient for treating skin that struggles with acne and clogged pores. It exfoliates both the skin's surface and deep within the pores to help clear out buildup, control oil, and reduce inflammation.
Unlike AHAs (alpha hydroxy acids), salicylic acid is oil-soluble. This allows it to penetrate into pores which makes it especially effective for treating blackheads and preventing future breakouts.
Salicylic acid is also known for its soothing properties. It has a similar structure to aspirin and can calm inflamed or irritated skin, making it a good option for acne-prone skin that is also sensitive.
Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.
It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing this ingredient into your routine.
While salicylic acid does not increase sun sensitivity, it’s still important to wear sunscreen daily to protect your skin.
If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.
Learn more about Salicylic AcidSodium 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
