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The Finest Routine For Healthy, Long Hair

Growing healthy, luxuriously long hair requires a robust plan of action.
It’s like strength training for the hair. Think of the Extentioniste range as
hi-tech equipment that gets you to your goal faster. Each component
plays a vital part in getting you to your goal.

Bain Extentioniste
LENGTH STRENGTHENING SHAMPOO

This invigorating, length strengthening shampoo contains Creatine R™ and Taurine.


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Fondant Extentioniste
LENGTH STRENGTHENING CONDITIONER

Enjoy the luxurious effect of a creamy conditioner designed to keep the hair in optimum shape as it goes to great lengths. Boasting a powerful fusion of Creatine R™, Ceramides and Maleic Acid.


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Masque Extentioniste
LENGTH STRENGTHENING MASK

The length Strengthening hair mask comes with incredible nourishing power, even on dry, thinning ends. Contains Creatine R™ and Maleic Acid.


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Sérum Extentioniste
SCALP & HAIR SERUM

A unique scalp and fiber hair serum. Sérum Extentioniste is a great product for a self-care moment. It’s applied by pipette and massaged in to the scalp—slowly for relaxation, or more vigorously for an energizing effect.


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Extentioniste Thermique
THE BLOW DRY PRIMER

This gel cream milky serum infused with Glaçage Thermo-Seal, Creatine R™ and Taurine. It protects hair from heat damage up to 450°F, with 90% less breakage* after 1 application. (*vs non-conditioning shampoo).


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Have a minute?

Let James Galvin, a salon director from London, explain to you the perfect routine to get long, strong and healthy hair.






Extentioniste Hair Care Routine

The Extentioniste routine targets roots, lengths and ends. It stimulates the scalp,
then gently detangles lengths while reinforcing and finally sealing ends for hair
that is as full and strong at the tips as it is at the root. Finish with the thermique
and your hair is fortified with no split ends and no breakage.












Find Your Nearest Salon

Far more than the place to get your root touch-up or an occasional trim, book an appointment at your nearest Kérastase salon for a complimentary personalized hair diagnosis.


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Services Your Personal Care





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 online hair diagnostic to find the best hair care
and treatment mix for your hair.


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