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Résistance Sérum Extentioniste Leave-In Hair Serum

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

Resistance Serum Extentioniste Leave-In Hair Serum
Kerastase

Résistance Sérum Extentioniste Leave-In Hair Serum

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

Enjoy your limited Edition Kerastase Blue summer clutch

Enjoy a Travel Size Nutritive Night serum when you purchase 3 items or more

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Product Benefits

Sérum Extentioniste is a highly concentrated, leave-in serum to help strengthen and fortify hair for reduced breakage.
Its non-greasy formula helps to protect the appearance of the scalp from environmental aggressors.  

Purifying  & protecting the scalp
Smoothes the fibres
Promotes a healthy scalp 

Supports healthy hair lengths. Soothing texture for itchy scalp. Essential nutrition for healthy hair.

Longer Hair
Healthy Hair
Soothes Scalp


Key Ingredients





How to Use

Apply Sérum Extentioniste directly to the scalp on cleansed, towel-dried hair.
Depending on hair type, 2 pipettes for fine hair and 4 for thick hair, position the pipette directly at the root and scalp to distribute 1 full pipette of the serum in a straight line from the front to the back of the head.
Follow the pipette with your fingers to massage the serum into the root and scalp as you work through each section.
Once application is complete in all sections, massage the entire head to distribute the serum evenly and comb through.
Leave in and proceed to blow dry.
Recommended to use at least 3 times a week.

Complete Your Routine

Complete your hair care routine with cleanse, treat, prime & night essentials.
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