The Bain Extentioniste by Kerastase is a length strengthening shampoo with Creatine that promotes healthy growth, closes the cuticles, repairs and prevents damage. The Creatine is an amino acid that penetrates the hair and repairs damage from within. The Ceramide fortifies the hair fiber and makes your hair smooth. The Taurine has a protective effect on the hair.

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

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