How to Go to Great Lengths: Your Guide to Strong, Long Hair

Kerastase L'Oreal •

Achieve your longest hair ever! Strengthen hair strands and prevent breakage with our targeted Extentioniste routine enriched with Creatine R.

Go to Great Lengths Article 1 Kérastase
The new range

Introducing Résistance Extensioniste

Strengthening and long-hair boosting shampoo for weakened long hair.

SEE ALL RESISTANCE COLLECTION

The new range

Introducing Résistance Extensioniste

Deep conditioning treatment allowing hair to be stronger and reach new healthy lengths.

SEE ALL RESISTANCE COLLECTION

The new range

Introducing Résistance Extensioniste

Energizing leave-in serum to stimulate and protect the scalp for healthy long hair.

SEE ALL RESISTANCE COLLECTION

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With exceptional care and a little patience, you can achieve long, healthy, incredible hair, and keep it that way until you decide it’s time to cut it. Which might be never. Who can predict?

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Rendez-vous at the salon

See your stylist (a.k.a. your hair coach) right away to jumpstart your Training Program for Longer Hair, a three-month journey that gets your hair in shape to reach your long hair goals.

Find your Hairdresser Coach

Services

Your Personal Care

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K-SCAN 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 salon rituals and shop products.