Kérastase Resistance Heat Protecting Leave In Treatment for Damaged Hair Versus Living Proof Perfect Hair Day Heat Styling Spray
Updated on January 05, 2024
Overview
What they are
These products are both heat protectants. They have a total of 7 ingredients in common
Suited For
They're both likely to be good for dry skin
What's Inside
They both contain common allergens, fragrances and sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Kérastase Resistance Heat Protecting Leave In Treatment for Damaged Hair 31 ingredients
Living Proof Perfect Hair Day Heat Styling Spray 23 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Kérastase Resistance Heat Protecting Leave In Treatment for Damaged Hair 31 ingredients
Living Proof Perfect Hair Day Heat Styling Spray 23 ingredients
Benefits
Concerns
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCyclopentasiloxane
Emollient
Propylene Glycol
Humectant
Dimethiconol
Emollient
Triethanolamine
BufferingPhenoxyethanol
Preservative
PEG/PPG-17/18 Dimethicone
Emulsifying
Carbomer
Emulsion StabilisingBehentrimonium Chloride
Preservative
Polyquaternium-4
Potato Starch Modified
Hydroxypropyl Guar
Emulsion StabilisingMethylparaben
Preservative
Limonene
Perfuming
Amodimethicone
Cetyl Alcohol
Emollient
Quaternium-87
CleansingBehentrimonium Methosulfate
Quaternium-33
Trideceth-6
Emulsifying2-Oleamido-1,3-Octadecanediol
Skin ConditioningGeraniol
Perfuming
Linalool
Perfuming
Glycerin
Humectant
Citronellol
Perfuming
Citral
Perfuming
Cetrimonium Chloride
Antimicrobial
Trehalose
Humectant
Tamarindus Indica Seed Polysaccharide
Skin ConditioningMyrothamnus Flabellifolia Leaf Extract
EmollientParfum
Masking
Water, Cyclopentasiloxane, Propylene Glycol, Dimethiconol, Triethanolamine, Phenoxyethanol, PEG/PPG-17/18 Dimethicone, Carbomer, Behentrimonium Chloride, Polyquaternium-4, Potato Starch Modified, Hydroxypropyl Guar, Methylparaben, Limonene, Amodimethicone, Cetyl Alcohol, Quaternium-87, Behentrimonium Methosulfate, Quaternium-33, Trideceth-6, 2-Oleamido-1,3-Octadecanediol, Geraniol, Linalool, Glycerin, Citronellol, Citral, Cetrimonium Chloride, Trehalose, Tamarindus Indica Seed Polysaccharide, Myrothamnus Flabellifolia Leaf Extract, Parfum
Alcohol Denat.
Antimicrobial
Hydrofluorocarbon 152a
Water
Skin ConditioningIsododecane
EmollientC13-15 Alkane
SolventDicaprylyl Ether
Emollient
Sunflower Seed Oil Glycerides
Emollient
Polyquaternium-16
Dioleoylethyl Hydroxyethylmonium Methosulfate
Propylene Glycol Dibenzoate
Skin ConditioningIsohexadecane
EmollientTriheptanoin
Skin ConditioningPPG-5-Ceteth-20
EmulsifyingC13-16 Isoalkane
SolventPEG-40 Hydrogenated Castor Oil
Emulsifying
Parfum
Masking
Aminomethyl Propanol
BufferingLinalool
Perfuming
Coumarin
Perfuming
Citronellol
Perfuming
Geraniol
Perfuming
Citral
Perfuming
Limonene
Perfuming
Alcohol Denat., Hydrofluorocarbon 152a, Water, Isododecane, C13-15 Alkane, Dicaprylyl Ether, Sunflower Seed Oil Glycerides, Polyquaternium-16, Dioleoylethyl Hydroxyethylmonium Methosulfate, Propylene Glycol Dibenzoate, Isohexadecane, Triheptanoin, PPG-5-Ceteth-20, C13-16 Isoalkane, PEG-40 Hydrogenated Castor Oil, Parfum, Aminomethyl Propanol, Linalool, Coumarin, Citronellol, Geraniol, Citral, Limonene
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Citral is a fragrance and used to add a lemon-like scent to products. It is both naturally found in plants and created synthetically. In plants, it is commonly occurring in lemon myrtle, lemongrass, lemon tea-tree, lemon verbena, and other citruses.
The EU mandates Citral be listed separately as a fragrance. It is a known allergen and may cause contact dermatitis. Citral can also used as a masking ingredient.
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.
The term 'citral' is a collective term for two geometric isomers: geranial/Citral A and neral/Citral B.
Learn more about CitralCitronellol is used to add fragrance/parfum to a product. It is often derived from plants such as roses. In fact, it can be found in many essential oils including geranium, lavender, neroli, and more. The scent of Citronellol is often described as "fresh, grassy, and citrus-like".
Since the Citronellol molecule is already unstable, Citronellol becomes irritating on the skin when exposed to air.
Citronellol is a modified terpene. Terpenes are unsaturated hydrocarbons found in plants. They make up the primary part of essential oils.
Citronellol is not able to be absorbed into deeper layers of the skin. It has low permeability,
Citronellol is also a natural insect repellent.
Learn more about CitronellolGeraniol is used to add fragrance/parfum to a product. It is the main component of citronellol. It is a monoterpenoid and an alcohol.
Monoterpenes are naturally found in many parts of different plants.
Geraniol can be found in many essential oils including Rose Oil and Citronella Oil. The scent of Geraniol is often described as "rose-like". Many foods also contain Geraniol for fruit flavoring.
Geraniol can irritate the skin when exposed to air. However, irritation depends on the ability of geraniol to penetrate into the skin. In general, geraniol is not able to penetrate skin easily.
Geraniol is colorless and has low water-solubility. However, it is soluble in common organic solvents.
Like citronellol, it is a natural insect repellent.
2,6-Octadien-1-ol, 3,7-dimethyl-, (2E)-
Learn more about GeraniolLimonene 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 LimoneneLinalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Like Limonene, this ingredient oxidizes when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.
This ingredient has a scent that is floral, spicy tropical, and citrus-like.
Learn more about LinaloolParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient 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.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.
The term 'parfum' or '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 by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
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 ParfumWater. 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. Stay hydrated!
Learn more about WaterIngredient Ratings
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