Kerastase Elixir Ultime Beautifying Oil Hair Masque, 6.8 Oz
Analysis updated August 2026 · How Scout scores
At a glance
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 OilVery 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 OilVery 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.
GlycerinGood
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.
MicaGood
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.
Zea Mays / Corn Germ OilGood
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 OilGood
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/WaterNeutral
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.
Cetearyl AlcoholNeutral
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.
Quaternium-87Neutral
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 PolyisobuteneNeutral
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.
Behentrimonium ChlorideNeutral
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.
Cetyl EstersNeutral
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.
HydroxyethylcelluloseNeutral
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.
Isopropyl AlcoholNeutral
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.
Caprylyl GlycolNeutral
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.
Ci 77891/Titanium DioxideNeutral
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.
Alpha-Isomethyl IononeNeutral
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.
Citric AcidNeutral
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.
Ci 17200/Red 33Neutral
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.
Propylene GlycolBad
Processed additive flagged under Scout's ingredient doctrine.
Risks
May cause irritation in sensitive skin types.
Benefits
Improves skin hydration and enhances product absorption.
PhenoxyethanolBad
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.
LinaloolBad
Processed additive flagged under Scout's ingredient doctrine.
Risks
May cause allergic reactions in sensitive individuals.
Benefits
Enhances the fragrance profile of cosmetic products.
LimoneneBad
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.
CaramelBad
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.
Ci 19140/Yellow 5Very 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.
Parfum/FragranceVery 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.
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