Kérastase Résistance Serum Extentioniste Scalp & Hair Serum Ingredients Explained
Updated on January 15, 2024 Submitted by tsmeu
Overview
What it is
Scalp treatment with 30 ingredients that contains Vitamin E
Cool Features
It is reef safe
Suited For
It has ingredients that are good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, reducing pores and scar healing
Free From
It doesn't contain any common allergens, oils, parabens or sulfates
Fun facts
Kérastase is from France.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
Ingredient List (30)
Water, Polyquaternium-37, Paraffinum Liquidum, Amodimethicone, Polysorbate 20, Quaternium-87, Stearyl Alcohol, Menthoxypropanediol, Behentrimonium Chloride, Safflower Glucoside, Maltodextrin, Propylene Glycol, Euphorbia Cerifera Cera, Ppg-1 Trideceth-6, Propanediol, Chlorhexidine Digluconate, Isopropyl Alcohol, Trideceth-6, Acrylates Copolymer, Sorbitan Oleate , Polyquaternium-11, Rose Extract, 2-Oleamido-1,3-Octadecanediol, Cetrimonium Chloride, Camellia Sinensis Leaf Extract, Xanthan Gum, Tocopherol, BHT, Sodium Citrate, Parfum
You should know
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
Benefits
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 1 ingredient that may have this attribute:
Concerns
This product contains 1 ingredient that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 1 ingredient that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
Ingredient Info
Contains Alcohol
Ingredients in this product that are types of alcohol:
Contains Silicon
Ingredients in this product that are types of silicon:
Contains Fragrance
Ingredients in this product that are forms of fragrance:
Sulfate Free
This product is free of sulfates 🎉
Paraben Free
This product is free of parabens 🎉
Oil Free
This product is free of oils 🎉
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
EU Allergen Free
This product is free of EU allergens 🎉
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
Ingredients Overview
Ingredients Explained
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterWe don't have a description for Polyquaternium-37.
Paraffinum Liquidum is also known as liquid paraffin. It is a type of highly refined mineral oil.
Like other oils, Paraffinum Liquidum has emollient properties. Emollients help soothe and soften the skin. By creating a barrier to trap moisture within, emollients help keep your skin hydrated.
Paraffinum Liquidum does not irritate the skin and is non-comedogenic. However, this ingredient may not work well for those with oily skin or fungal acne.
If you have concerns about using this ingredient in your routine, we recommend speaking with a professional.
Learn more about Paraffinum LiquidumPolysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.
As a surfactant, it helps collect dirt and oils for washing. Emulsifiers prevent oils and water from separating.
Polysorbate 20 also adds scent to a product. Since it is made using sorbitol, it has a sweet scent. Sorbitol can also be found in fruits such as apples and peaches.
The lauric acid used to create Polysorbate 20 is often derived from coconuts.
Polysorbate 20 may not be fungal acne safe.
Learn more about Polysorbate 20Stearyl Alcohol is a type of fatty alcohol from stearic acid. It is a white, waxy compound used to emulsify ingredients.
Fatty Alcohols are most often used as an emollient or to thicken a product. Emollients help soothe and hydrate the skin by trapping moisture.
They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as solvent alcohols. FDA allows products labeled "alcohol-free" to have fatty alcohols.
Learn more about Stearyl AlcoholThis ingredient is a preservative and often used for it's anti-static properties. You'll most likely see this ingredient in hair conditioners.
It does not cause irritation or sensitization in leave-on products at 1-5%.
Maltodextrin is a polysaccharide. It is derived from starch such as rice, corn, wheat, or potato starch.
In food, Maltodextrin is used to improve the texture and thicken a product. Due to its structure, it can help create a gel texture. As an emulsion stabilizer, it helps keep the ingredients in a product together.
As a polysaccharide, Maltodextrin has moisturizing properties. Polysaccharides are a type of carbohydrate. The top layer of skin uses polysaccharides to retain water, keeping the skin hydrated.
Maltodextrin is water soluble and has a sweet taste.
Learn more about MaltodextrinPropylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
Another role of this ingredient is preventing a product from melting or freezing. Propylene glycol also adds antimicrobrial properties to a product, elongating product lifespan.
This ingredient is considered an organic alcohol and commonly added into both cosmetics and foods.
Those with sensitive skin or conditions may deliver a rash when using this ingredient.
Learn more about Propylene GlycolEuphorbia Cerifera Cera is AKA as Candelilla wax. It is a natural emollient and helps give products a thick consistency.
This ingredient may not be Malassezia safe.
This wax comes from a shrub native to Mexico. Since it is a plant derived wax, it is considered vegan.
Learn more about Euphorbia Cerifera CeraWe don't have a description for Ppg-1 Trideceth-6.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
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 PropanediolChlorhexidine Digluconate is a preservative.
Isopropyl Alcohol is more commonly known as rubbing alcohol. It is most commonly used as a solvent, meaning it helps other ingredients dissolve.
This ingredient is an astringent alcohol. Astringent alcohols may also irritate skin as they high amounts may strip away your skin's natural oils.
Other types of astringent alcohols include:
According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.
Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.
Learn more about Isopropyl AlcoholAcrylates Copolymer is used as a film-forming agent and texture enhancer.
After applied, Acrylates Copolymer forms a thin film cover that helps skin feel more soft. It can help sunscreens become more water-resistant.
It is also used to make a product more thick.
Learn more about Acrylates CopolymerSorbitan Oleate is created from compounds in oleic acid and sorbitol. It is used to stabilize a product by preventing ingredients from separating.
Emulsifiers help keep ingredients together, such as oils and water.
Sorbitan Oleate may not be fungal acne safe. It can also worsen oily skin.
Learn more about Sorbitan OleateWe don't have a description for Rose Extract.
We don't have a description for 2-Oleamido-1,3-Octadecanediol.
This ingredient is a preservative, antimicrobial, and emulsifier. It is often used in cosmetics for its ability to cleanse, condition, and reduce static.
Cetrimonium chloride is a quaternary ammonium salt, meaning it has a water-soluble structure.
Camellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.
Camellia Sinensis Leaf Extract has many benefits. It contains polyphenols, a strong antioxidant. Antioxidants help fight off free-radical molecules that damage skin cells. The antioxidants in green tea neutralize free-radicals from the sun. This gives the skin some extra UV protection, but should not replace sunscreen.
Many components of tea have anti-inflammatory properties. Polyphenols and L-theanine help soothe the skin and reduce irritation. L-theanine is an amino acid that makes up most of the amino acids found in tea leaves. The caffeine in Camellia Sinensis Leaf Extract helps calm inflamed blood vessels.
Camellia Sinensis Leaf Extract also contains Vitamin Bs, linoleic acid, magnesium, calcium, iron, and zinc.
Camellia Sinensis Leaf Extract also has antimicrobial properties.
Research has shown both drinking Camellia Sinensis Leaf Tea and applying it to the skin can help boost skin elasticity and hydration. Studies also show using tea extract may reduce sebum, or oil, production.
Learn more about Camellia Sinensis Leaf ExtractXanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumTocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolBHT is a synthetic antioxidant. As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
BHT also helps stabilize products and prevent them from degrading. Many products are sensitive to air and light. BHT prevents them from breaking down when exposed.
Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
Sodium Citrate helps maintain the pH of a product. Normal pH level of skin is slightly acidic (~4.75-5.5). The acidity of our skin is maintained by our glands and skin biome. Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.
Sodium Citrate is a chelating agent. It neutralizes metal ions from water and prevents them from binding to other ingredients. This ensures the other ingredients will not be altered.
Learn more about Sodium CitrateParfum is a catch-all term for an ingredient or more that is used to give aroma to products. Parfum, or fragrance, can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "Parfum" in the ingredients list is a different mixture.
In the US, the alternative name for parfum is 'fragrance'. The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.
Depending on the blend, it can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Products use parfum often to give products a scent or cover up smells of different ingredients.
The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.
Learn more about ParfumBeautiful widgets for your website
Here's what our community thinks of the 30 ingredients in this product ✨
When to use
Here's some more info on how this product is used by our community.
Directions
Step 1. Apply scalp treatment Serum Extentioniste directly to the scalp on cleansed, towel-dried hair.
Step 2. Depending on hair type, apply a maximum of 3 pipettes directly to scalp in sections.
Step 3. Massage the hair serum into the root and scalp as you work through each...
Step 1. Apply scalp treatment Serum Extentioniste directly to the scalp on cleansed, towel-dried hair.
Step 2. Depending on hair type, apply a maximum of 3 pipettes directly to scalp in sections.
Step 3. Massage the hair serum into the root and scalp as you work through each section.
We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about usCompared With
Here are some products that Kérastase Résistance Serum Extentioniste Scalp & Hair Serum is often compared with.
Want to compare it with a different product? Head on over to our comparisons tool and you can!