ength strengthening conditioner for slow growing, damaged lengths.


  • acts as a hair detangler for easy comb-through without hair breakage
  • infuses weak brittle hair with active and healing particles
  • strengthens brittle hair and promotes a healthy scalp environment
  • increases elasticity while rebuilding the natural hair strength of the hair fiber 

How to use:

After washing hair with Bain Extentioniste, apply to still wet hair.
Massage the hair detangler through lengths and ends of split ends hair.
After detangling hair, leave in for 2 to 3 minutes.
Rinse out thoroughly.


  • 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 particules that penetrate the fiber to reinforce and seal cuticle with a uniform coating from root to ends.


    Together with the Bain, Masque and Serum Extentioniste, the Resistance Extentioniste line by Kerastase promotes hair growth for damaged hair. 

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