Kerastase Elixir Ultime Beautifying Oil Hair Masque, 6.8 Oz

Common questions

Is Kerastase Elixir Ultime Beautifying Oil Hair Masque, 6.8 Oz healthy?

Kerastase Elixir Ultime Beautifying Oil Hair Masque, 6.8 Oz scores 65/100 on Scout's independent analysis of ingredients, additives, and lab results — a fair-to-good score — solid, with tradeoffs. This hair masque contains beneficial natural oils like argan and camellia, which provide moisturizing and nourishing properties.

Which ingredients drive Kerastase Elixir Ultime Beautifying Oil Hair Masque, 6.8 Oz's score?

In Scout's ingredient-by-ingredient analysis, Glycerin, Mica, Zea Mays / Corn Germ Oil count in its favor; Propylene Glycol, Phenoxyethanol, Linalool are flagged as ingredients of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.

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Kerastase Elixir Ultime Beautifying Oil Hair Masque, 6.8 Oz

Kerastase
65 Fair

Analysis updated August 2026 · How Scout scores

$35.00 · 1.01 fl oz · $34.65 / fluid ounce
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At a glance

Beneficial ingredients 6
Harmful ingredients 7
Owned by L'Oréal
Category Other Makeup
Summary

This hair masque contains beneficial natural oils like argan and camellia, which provide moisturizing and nourishing properties. However, it also includes phenoxyethanol and fragrance, which can cause irritation and allergic reactions in some individuals. The presence of these potentially harmful ingredients, along with the processed nature of the product, affects its overall safety score.

Key ingredients 26

Argania Spinosa Oil/Argania Spinosa Kernel Oil
Very Good

Argan Oil is a natural oil rich in fatty acids and antioxidants, used for its moisturizing and nourishing properties. It is highly beneficial for skin and hair health. It is considered safe and effective for most skin types.

Risks

There are minimal risks associated with argan oil.

Benefits

Deeply moisturizes and nourishes the skin and hair, improving texture and elasticity.

Camellia Oleifera Seed Oil
Very Good

Camellia Oil is a natural oil known for its moisturizing and antioxidant properties. It is beneficial for skin and hair health, providing nourishment and hydration. It is considered safe and effective for most skin types.

Risks

There are minimal risks associated with camellia oil.

Benefits

Provides deep hydration and nourishment, improving skin and hair texture.

See more about Camellia Oleifera Seed Oil →
Glycerin
Good

Glycerin is a humectant that attracts moisture to the skin, helping to keep it hydrated. It is widely used in skincare products for its moisturizing properties. It is considered safe and beneficial for most skin types.

Risks

There are minimal risks associated with glycerin, though excessive use may lead to a sticky feeling.

Benefits

Glycerin helps to maintain skin hydration and improve skin barrier function.

See more about Glycerin →
Mica
Good

Beneficial ingredient — whole-food or functional value in this product class.

Risks

Inhalation of mica particles can be a concern in loose powder forms.

Benefits

Provides a shimmering effect and enhances the visual appeal of products.

See more about Mica →
Zea Mays / Corn Germ Oil
Good

Corn Germ Oil is a natural oil used for its emollient properties in cosmetics. It helps to moisturize and nourish the skin and hair. It is considered safe and beneficial for most skin types.

Risks

There are minimal risks associated with corn germ oil.

Benefits

Provides moisturizing and nourishing benefits to the skin and hair.

Pentaclethra Macroloba Oil/Pentaclethra Macroloba Seed Oil
Good

Pracaxi Oil is a natural oil used for its emollient and conditioning properties in cosmetics. It helps to moisturize and improve the texture of skin and hair. It is considered safe and beneficial for most skin types.

Risks

There are minimal risks associated with pracaxi oil.

Benefits

Enhances skin and hair moisture and texture, providing a smooth and soft feel.

Aqua/Water
Neutral

Water is a common solvent used in cosmetic formulations. It helps to dissolve other ingredients and provides a base for the product. It is generally considered safe and non-reactive.

Risks

There are no significant risks associated with water in cosmetics.

Benefits

Water helps to hydrate and distribute other ingredients evenly in the formulation.

See more about Aqua/Water →
Cetearyl Alcohol
Neutral

Cetearyl Alcohol is a fatty alcohol used as an emollient and thickener in cosmetics. It helps to soften the skin and improve the texture of the product. It is generally considered safe for use in cosmetics.

Risks

Rarely, it may cause skin irritation in sensitive individuals.

Benefits

It provides moisturizing properties and helps to stabilize emulsions.

See more about Cetearyl Alcohol →
Quaternium-87
Neutral

Quaternium-87 is a conditioning agent used in hair care products to improve manageability and reduce static. It is generally considered safe for use in cosmetics. It helps to enhance the texture and feel of hair.

Risks

May cause mild irritation if it comes into contact with the eyes.

Benefits

Improves hair softness and reduces frizz.

Hydrogenated Polyisobutene
Neutral

Hydrogenated Polyisobutene is a synthetic polymer used as an emollient and moisturizer in cosmetics. It provides a smooth application and enhances the texture of the product. It is considered safe for use in cosmetics.

Risks

There are no significant risks associated with this ingredient.

Benefits

It helps to lock in moisture and improve the feel of the product on the skin.

See more about Hydrogenated Polyisobutene →
Behentrimonium Chloride
Neutral

Behentrimonium Chloride is a conditioning agent used in hair care products to improve detangling and manageability. It is effective in reducing static and frizz. It is generally considered safe for use in cosmetics.

Risks

May cause mild irritation if it comes into contact with the eyes.

Benefits

Improves hair texture and manageability.

See more about Behentrimonium Chloride →
Cetyl Esters
Neutral

Cetyl Esters are used as emollients and thickeners in cosmetic formulations. They help to improve the texture and spreadability of the product. They are generally considered safe for use in cosmetics.

Risks

There are no significant risks associated with cetyl esters.

Benefits

They provide a smooth application and enhance the moisturizing properties of the product.

Hydroxyethylcellulose
Neutral

Hydroxyethylcellulose is a thickening agent used to improve the texture and stability of cosmetic formulations. It is derived from cellulose and is generally considered safe for use. It helps to create a smooth and consistent product texture.

Risks

There are no significant risks associated with this ingredient.

Benefits

Enhances product texture and stability.

See more about Hydroxyethylcellulose →
Isopropyl Alcohol
Neutral

Isopropyl Alcohol is used as a solvent and antiseptic in cosmetics. It helps to dissolve other ingredients and improve product texture. It is generally considered safe for use in cosmetics in low concentrations.

Risks

Can be drying to the skin if used in high concentrations.

Benefits

Improves product texture and acts as a disinfectant.

See more about Isopropyl Alcohol →
Caprylyl Glycol
Neutral

Caprylyl Glycol is a skin conditioning agent and preservative used in cosmetics. It helps to improve skin hydration and extend product shelf life. It is generally considered safe for use in cosmetics.

Risks

There are no significant risks associated with this ingredient.

Benefits

Enhances skin moisture and product preservation.

See more about Caprylyl Glycol →
Ci 77891/Titanium Dioxide
Neutral

Titanium Dioxide is a mineral used as a pigment and UV filter in cosmetics. It provides opacity and sun protection in formulations. It is generally considered safe for use in cosmetics.

Risks

Inhalation of titanium dioxide particles can be a concern in loose powder forms.

Benefits

Provides UV protection and enhances product opacity.

See more about Ci 77891/Titanium Dioxide →
Alpha-Isomethyl Ionone
Neutral

Alpha-Isomethyl Ionone is a fragrance ingredient used to impart a floral scent to cosmetics. It is commonly used in perfumes and scented products. It is generally considered safe for use in cosmetics.

Risks

May cause allergic reactions in sensitive individuals.

Benefits

Provides a pleasant floral fragrance to cosmetic products.

See more about Alpha-Isomethyl Ionone →
Citric Acid
Neutral

Citric Acid is used to adjust the pH of cosmetic formulations. It is a weak organic acid found naturally in citrus fruits. It is generally considered safe for use in cosmetics.

Risks

May cause irritation in sensitive skin types if used in high concentrations.

Benefits

Helps to maintain the stability and effectiveness of cosmetic formulations.

See more about Citric Acid →
Ci 17200/Red 33
Neutral

Red 33 is a synthetic dye used to impart a red color to cosmetics. It is commonly used in a variety of personal care products. It is generally considered safe for use in cosmetics.

Risks

May cause allergic reactions in sensitive individuals.

Benefits

Provides vibrant red coloration to cosmetic products.

See more about Ci 17200/Red 33 →
Propylene Glycol
Bad

Processed additive flagged under Scout's ingredient doctrine.

Risks

May cause irritation in sensitive skin types.

Benefits

Improves skin hydration and enhances product absorption.

See more about Propylene Glycol →
Phenoxyethanol
Bad

Phenoxyethanol is a preservative used to prevent microbial growth in cosmetics. It is effective in extending the shelf life of products. However, it can cause irritation and allergic reactions in some individuals.

Risks

Potential skin irritant and allergen, especially in high concentrations.

Benefits

Helps to preserve the product and prevent contamination.

See more about Phenoxyethanol →
Linalool
Bad

Processed additive flagged under Scout's ingredient doctrine.

Risks

May cause allergic reactions in sensitive individuals.

Benefits

Enhances the fragrance profile of cosmetic products.

See more about Linalool →
Limonene
Bad

Processed additive flagged under Scout's ingredient doctrine.

Risks

May cause skin irritation or allergic reactions in sensitive individuals.

Benefits

Adds a fresh citrus fragrance to cosmetic products.

See more about Limonene →
Caramel
Bad

Processed additive flagged under Scout's ingredient doctrine.

Risks

There are no significant risks associated with caramel in cosmetics.

Benefits

Provides a natural brown color to cosmetic products.

See more about Caramel →
Ci 19140/Yellow 5
Very Bad

Heavily flagged ingredient class under Scout's doctrine.

Risks

May cause allergic reactions in sensitive individuals.

Benefits

Provides vibrant yellow coloration to cosmetic products.

See more about Ci 19140/Yellow 5 →
Parfum/Fragrance
Very Bad

Fragrance is used to impart a pleasant scent to cosmetic products. However, it can contain a mixture of various chemicals, some of which may cause irritation or allergic reactions. It is often criticized for its potential to cause skin sensitivity.

Risks

Potential skin irritant and allergen, especially for sensitive individuals.

Benefits

Enhances the sensory experience of using cosmetic products.

See more about Parfum/Fragrance →

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