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Dare to shine

K WATER, the 1st resurfacing Lamellar treatment for intensely shiny, lightweight, fluid hair.

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A light, clear liquid, K Water is actually an anhydrous formula. It has no water. It is a combination of glycol, caring agents and amino acids.


The caring agents are activated by the contact with water. When K Water is applied to wet hair, its lipid compounds and cationic derivatives rush to the fiber’s surface in neat layers to create a smooth finish. The actives automatically bind to the areas that are the most sensitized, staying away from the areas that don’t need as much care, so the amount of nourishment is never too heavy nor too light.


Because of their incredible fast-acting nature, K Water’s caring agents bind instantly to the hair, creating smooth, hydrated, nourished fibers. Hair is perfectly prepped for styling and blow-drying. The immediate result is unbelievably sleek, fluid hair with a glasslike shine.

Beyond shine, it's K SHINE

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Your Personal Care

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Fusio-Dose In Salon

Learn about the signature in-salon service that transforms hair quality in under 5 minutes.

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The Right Products for You

Take the hair diagnosis quiz to find the best product mix for your hair wishes.


Find a Kérastase salon near you to receive your personal diagnosis, discover salon rituals and shop products.