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Strong Long Hair

Go To Great Lengths With Kérastase Extensioniste

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.

Kerastase Resistance - Kerastase Extentioniste - Emily Ratajkowski

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.

Go to Great Lengths
Kerastase Bain Extentioniste Shampoo, Hair Masque And Conditioner for Split Ends - With Creatine R

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 – In salon use - Bain Extentionste + Soin N°1 + Soin N°2 + Serum Therapiste Vs. non-conditioning Shampoo.

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.

Kerastase Resistance Extentioniste - Hair Treatment

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.


Your Personal Care

Fusio Dose

Fusio-Dose In Salon

Learn about the signature in-salon service that transforms hair quality in 15 minutes.

Diagnose your hair

The Right Products for You

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