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Overview

What they are

These products are both reef safe hair serums. They have a total of 5 ingredients in common

Free From

They both do not contain any parabens or sulfates

What's Inside

They both contain common allergens, fragrances and silicones

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.

Paul Mitchell Super Skinny Serum
Paul Mitchell Super Skinny Serum
Hair Serum
American Brand United States
Kérastase Elixir Ultime Hydrating Hair Oil Serum

Ingredient Info

Click any item below to learn more and see relevant ingredients

At a glance

Click on any of the items below to learn more

Concerns

Notable Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Super Skinny Serum
Cyclopentasiloxane Emollient, Skin Conditioning, Solvent
Silicon Icon
SiliconSilicon Icon

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

Disliked Full details ->
Dimethiconol Emollient, Moisturising

Dimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.

Disliked Full details ->
Dimethicone Emollient, Skin Conditioning, Skin Protecting
1 / 0 Silicon Icon
SiliconSilicon Icon

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

1 Com. / 0 Irr.
Very Disliked Full details ->
Isododecane Emollient, Solvent

Isododecane is a fragrance, emollient, and solvent.

Disliked Full details ->
Propoxytetramethyl Piperidinyl Dimethicone
Silicon Icon
SiliconSilicon Icon

Propoxytetramethyl Piperidinyl Dimethicone is a type of silicone.

Unknown Full details ->
Phenyl Trimethicone Skin Conditioning
Silicon Icon
SiliconSilicon Icon

Phenyl Trimethicone is a silicon-based polymer. It is derived from silica.

Disliked Full details ->
Parfum Masking, Perfuming
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon
FragranceFragrance Icon 2 Concerns

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Very Disliked Full details ->
Hexyl Cinnamal Perfuming
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

Hexyl Cinnamal is a fragrance ingredient with a similar scent to jasmine. It can be naturally found in chamomile essential oil.

Very Disliked Full details ->
Linalool Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon
FragranceFragrance Icon 2 Concerns

Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.

Very Disliked Full details ->
Benzyl Salicylate Perfuming, UV Absorber
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

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.

Very Disliked Full details ->
Limonene Perfuming, Solvent
Fragrance Icon
FragranceFragrance Icon

Limonene is a fragrance that adds scent and taste to a formulation.

Very Disliked Full details ->
Geraniol Perfuming, Tonic
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

Geraniol is used to add fragrance/parfum to a product. It is the main component of citronellol. It is a monoterpenoid and an alcohol.

Very Disliked Full details ->
Amyl Cinnamal Perfuming
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

Amyl Cinnamal is a synthetically produced fragrance. Its scent is reminiscent of jasmine flowers.

Unknown Full details ->
Citronellol Perfuming
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

Citronellol 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".

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Elixir Ultime Hydrating Hair Oil Serum
Cyclopentasiloxane Emollient, Skin Conditioning, Solvent
Silicon Icon
SiliconSilicon Icon

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

Disliked Full details ->
Dimethiconol Emollient, Moisturising

Dimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.

Disliked Full details ->
Zea Mays Germ Oil Emollient, Skin Conditioning
Oil IconNot safe for Fungal Acne Icon
OilOil Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Zea Mays Germ Oil comes from corn.

Unknown Full details ->
Argania Spinosa Kernel Oil Emollient, Skin Conditioning
Oil IconHelps hydrate Dry Skin IconNot safe for Fungal Acne Icon
OilOil Icon Helps hydrate Dry SkinHelps hydrate Dry Skin Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Argania Spinosa Kernel Oil is derived from the kernels of the argania spinosa tree. You may know it as argan oil.

Sclerocarya Birrea Seed Oil Humectant
Oil IconNot safe for Fungal Acne Icon
OilOil Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Sclerocarya Birrea Seed Oil is the oil expressed from the seeds of the Marula plant. In South Africa, Marula is called "an elephant's favorite treat".

Camellia Oleifera Seed Oil Skin Conditioning
Oil IconNot safe for Fungal Acne Icon
OilOil Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Camellia Oleifera Seed Oil comes from a green tea plant native to China. It is closely related to Camellia sinensis. Both plants have very similar properties. This plant also has similar properties to olive oil.

Pentaclethra Macroloba Seed Oil Emollient
Oil IconNot safe for Fungal Acne Icon
OilOil Icon Not safe for Fungal AcneNot safe for Fungal Acne Icon

Pentaclethra Macroloba Seed Oil is an oil and isn't fungal acne safe.

Unknown Full details ->
Caprylic/Capric Triglyceride Masking, Skin Conditioning

Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

Linalool Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon
FragranceFragrance Icon 2 Concerns

Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.

Very Disliked Full details ->
Alpha-Isomethyl Ionone Perfuming, Skin Conditioning
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

Alpha-Isomethyl Ionone is a fragrance. It can be synthetically created or naturally occurring.

Unknown Full details ->
Limonene Perfuming, Solvent
Fragrance Icon
FragranceFragrance Icon

Limonene is a fragrance that adds scent and taste to a formulation.

Very Disliked Full details ->
Coumarin Perfuming
Fragrance IconEU Allergen Icon
FragranceFragrance Icon EU AllergenEU Allergen Icon

Coumarins are a group of substances found naturally in plants. There are over 1300 types of coumarins identified. It has a natural vanilla scent.

Very Disliked Full details ->
Benzyl Alcohol Perfuming, Preservative, Solvent
Alcohol IconFragrance IconPreservative IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon
AlcoholAlcohol Icon FragranceFragrance Icon PreservativePreservative Icon 6 Concerns

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.

Very Disliked Full details ->
Phyllanthus Emblica Fruit Extract Humectant, Skin Conditioning

We don't have a description for Phyllanthus Emblica Fruit Extract.

Unknown Full details ->
Tocopherol Antioxidant, Masking, Skin Conditioning
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin IconMay cause irritation Icon
Vitamin EVitamin E Icon AntioxidantAntioxidant Icon 4 Benefits May cause irritationMay cause irritation Icon

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.

0-3 Com. / 0-3 Irr.
Parfum Masking, Perfuming
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon
FragranceFragrance Icon 2 Concerns

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Very Disliked Full details ->

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Emollient, Skin Conditioning, Solvent
Disliked

Cyclopentasiloxane is a silicone used to improve texture and trap moisture. An easier name for this is D5.

D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.

D5 is an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.

Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.

Learn more about Cyclopentasiloxane
Emollient, Moisturising
Disliked

Dimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.

This ingredient helps to create a silky texture and improve spreadability. Due to its high molecular weight and thickness, it is often combined with cyclopentasiloxane.

Masking, Perfuming
Very Disliked

Parfum 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.

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 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 Parfum
Perfuming
Very Disliked

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 Linalool
Perfuming, Solvent
Very Disliked

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 Limonene

Ingredient Ratings

Here's what our community thinks of the ingredients in these two products.

Super Skinny Serum
12
2
liked
mixed
disliked
not rated
Elixir Ultime Hydrating Hair Oil Serum
1
4
7
4
liked
mixed
disliked
not rated

When to use

3 Routines
67% use in am
33% use in pm
100% use every day
10 Routines
80% use in am
20% use in pm
40% use every on_specific_days

Reviews

Here's what our community thinks

Paul Mitchell Super Skinny Serum 14 ingredients

5.0 /5
from 1 rating

Kérastase Elixir Ultime Hydrating Hair Oil Serum 16 ingredients

5.0 /5
from 1 rating