Here's our complete breakdown comparing the ingredients, attributes, and more of Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair versus Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair .
Last updated on October 25, 2023. Published on March 19, 2023
Overview
What they are
These products are both reef safe . They have a total of 14 ingredients in common
Cool Features
They both contain Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin and scar healing
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain harsh alcohols, common allergens, fragrances and silicones
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.
Heat Protectant
These products protect hair from heat damage. Heat damage can come from curling irons, straighteners, other heat-tools, and the sun.
Hair Mask
Hair masks provide intense nourishment to your hair and usually need to be washed out. They can be used to treat specific hair conditions.
Price
Ingredient Info
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair 37 ingredients
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair 30 ingredients
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 🎉
Contains Oils
Ingredients in this product that are types of oil:
Not Malassezia Safe
Ingredients in this product that are not malassezia safe:
Reef Safe
This product is free of ingredients that damage reefs 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
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 🎉
Contains EU Allergens
Ingredients in this product that are EU allergens:
Non Vegan
This product is not vegan 😥
Not Cruelty Free
This product is not cruelty-free 😥
At a glance
Click on any of the items below to learn more
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair 37 ingredients
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair 30 ingredients
Notable Ingredients
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Benefits
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Concerns
This product contains 2 ingredients that may have this attribute:
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This product contains 3 ingredients that may have this attribute:
Notable Ingredients
This product contains 1 ingredient that may have this attribute:
Benefits
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 2 ingredients 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:
Concerns
This product contains 2 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 4 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
This product contains 3 ingredients that may have this attribute:
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Join SkinSortIngredients Compared
Ingredients that are highlighted in purple are present in both products.
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair 37 ingredients
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair 30 ingredients
Water • Cocos Nucifera Oil • Amodimethicone • Polyquaternium-37 • Phenoxyethanol • Propylene Glycol Dicaprylate/Dicaprate • Xylitylglucoside • Sodium Hydroxide • Anhydroxylitol • Xylitol • Dimethicone Peg-7 Phosphate • Ppg-1 Trideceth-6 • Trideceth-6 • Behentrimonium Chloride • Limonene • Xylose • Ethylhexylglycerin • Sorbitan Oleate • Linalool • Isopropyl Alcohol • Cetrimonium Chloride • Glycerin • Hydrolyzed Vegetable Protein Pg-Propyl Silanetriol • Benzyl Salicylate • Coumarin • Zingiber Officinale Root Extract • Citral • Benzyl Alcohol • Citronellol • Benzyl Benzoate • Leontopodium Alpinum Callus Culture Extract • Potassium Sorbate • Tocopherol • Citric Acid • Xanthan Gum • Dipeptide Diaminobutyroyl Benzylamide Diacetate • Parfum
Water • Stearyl Alcohol • Dimethicone • Behentrimonium Chloride • Glycerin • Amodimethicone • Cetyl Esters • Tocopherol • Hydrolyzed Rice Extract • Sodium Citrate • Phenoxyethanol • Acetic Acid • Safflower Glucoside • Trideceth-15 • Trideceth-3 • Chlorhexidine Digluconate • Limonene • Benzyl Alcohol • Benzyl Salicylate • Linalool • Isopropyl Alcohol • Oleamide • Ceramide 1 A • Caprylyl Glycol • Paraffinum Liquidum • Cetrimonium Chloride • Citric Acid • Butylene Glycol • BHA • Parfum
Ingredients Side-by-side
Ingredients that are highlighted in purple are present in both products.
Learn more about what what Com. / Irr. ratings are
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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 1.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 1.
Amodimethicone is a type of silicone.
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 3.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 6.
Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 5.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 11.
This 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%.
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 14.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 4.
Limonene is a fragrance that adds scent and taste to a formulation.
It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".
Limonene acts as an antioxidant, meaning it helps neutralize free radicals.
When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.
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.
Learn more about LimoneneKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 15.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 17.
Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Linalool has the same effect as Limonene when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.
Linalool has a scent that is floral, spicy tropical, and citrus-like.
Learn more about LinaloolKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 19.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 20.
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 AlcoholKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 20.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 21.
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.
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 21.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 26.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 22.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 5.
Benzyl Salicylate is a solvent and fragrance additive. It is an ester of benzyl alcohol and salicylic acid. This ingredient can be naturally found in some plants and plant extracts.
In fragrances, Benzyl Salicylate may be a solvent or a fragrance component. In synthetic musk scents, it is used as a solvent. For floral fragrances such as lilac and jasmine, it is used as a fragrance component. The natural scent of Benzyl Salicylate is described as "lightly-sweet, slightly balsamic".
While Benzyl Salicylate has been associated with contact dermatitis and allergies, emerging studies show it may not be caused by this ingredient alone.
However, this ingredient is often used with fragrances and other components that may cause allergies. It is still listed as a known allergen in the EU. We recommend speaking with a professional if you have concerns.
Another study from 2021 shows Benzyl Salicylate may have anti-inflammatory properties.
Learn more about Benzyl SalicylateKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 24.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 19.
Benzyl Alcohol is most commonly used as a preservative. It also has a subtle, sweet smell. Small amounts of Benzyl Alcohol is not irritating and safe to use in skincare products. Most Benzyl Alcohol is derived from fruits such as apricots.
Benzyl Alcohol has both antibacterial and antioxidant properties. These properties help lengthen the shelf life of products. Benzyl Alcohol is a solvent and helps dissolve other ingredients. It can also improve the texture and spreadability.
Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is an astringent alcohol.
Using high concentrations of these alcohols are drying on the skin. They may strip away your skin's natural oils and even damage your skin barrier. Astringent alcohols may also irritate skin.
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 Benzyl AlcoholKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 28.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 18.
Tocopherol (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 TocopherolKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 33.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 8.
Citric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and look more even.
Read more about some other popular AHA's here:
Learn more about Citric AcidKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 34.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 27.
Parfum 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 ParfumKérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair contains this as ingredient number 37.
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair contains this as ingredient number 30.
Here's what our community thinks of the ingredients in these two products.
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair 37 ingredients
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair 30 ingredients
Usage
Here's some more info on how this product is used by our community.
When to use
Kérastase Défense Thermique Heat Protecting Leave-In Treatment for Weakened Hair 37 ingredients
Shu Uemura Ultimate Reset Hair Mask for Very Damaged Hair 30 ingredients
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