Kerastase Length Strengthening Scalp Serum Extentioniste for Damaged Hair

$54 $64

Resistance Serum Extentioniste Scalp & Hair Serum x 50 ml by Kerastase

Length strengthening hair serum for slow growing, damaged lengths.

Length-strengthening serum. Contains Creatine R™ technology, boasting a powerful fusion of Creatine and Ceramides + Maleic Acid, very small particles that penetrate the fiber for reinforcement action and seal cuticles with a uniform coating from roots to tips.


Creatine: an amino acid that penetrates deep to reinforce the internal structure of the hair fiber.
Ceramide: provide surface recovery, assuring beautiful hair fiber as they smooth and soften.
Maleic acid: Very small particles that penetrate the fiber to reinforce and seal cuticle with a uniform coating from root to ends.

How to use Hair Serum, Serum Extentioniste

Step 1. Apply scalp treatment Serum Extentioniste directly to the scalp on cleansed, towel-dried hair.
Step 2. Depending on hair type, apply a maximum of 3 pipettes directly to scalp in sections.
Step 3. Massage the hair serum into the root and scalp as you work through each section.
Step 4. Once application of hair serum is complete in all sections, massage the entire head to distribute the serum evenly and comb through.
Step 5. Leave in scalp treatment and proceed with usual hair styling. Recommended to use at least 3 times a week for a healthy scalp.

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