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Strong Long Hair

Go To Great Lengths

Introducing Resistance Extentioniste, the ultimate advantage in the quest for long hair. It’s a new family of products focused on keeping hair strong and healthy, so it can grow as long as you like, always looking glossy and gorgeous.

Emily Ratajkowski Article 1 Kerastase

Introducing Resistance Extentioniste, the ultimate advantage in the quest for strong and long hair.

Whenever you try to grow your hair out, you run into problems. As hair grows longer, it simply spends more time in the world, exposed to the elements, environmental pollutants and chemical stresses. You  ask your stylist to cut a bit more than you would’ve liked. You tell yourself it’s for the health of your hair. It feels like it’s one step up, two steps back, always. You never quite reach your goal length.

No more of this, we say. The hair scientists at Kérastase are aware of the difficulties of the growth process. We know that it requires willpower and dedication, a focused regimen that produces the strength and stamina hair needs to go the extra mile. We have now introduced the right tools and techniques to get you the results your hair needs.

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It’s a new family of products focused on keeping each strand strong and healthy, so hair can grow as long as you like. With breakthrough technology Creatine R™ - bond and fibre strengthener, this ritual gives you 99% less breakage and 78% less spilt ends* in one salon visit.
*Instrumental Test

See your stylist right away to jumpstart your strong and long  training program with Resistance Extentioniste, a boost for your hair goals. Your stylist can also recommend an at-home Extentioniste hair training to keep you on track between visits.

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RENDEZ-VOUS AT THE SALON

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 or ask your hairdresser about the signature and salon-exclusive Fusio-Dose treatment. You can also stop by anytime to browse and shop the complete Kérastase range, no appointment necessary.

Services

Your Personal Care

Two zones block Fusio-Dose in Salon Kérastase

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.

Locator FIND A SALON

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