![A length-strengthening conditioner for weakened and damaged hair. A length-strengthening conditioner for weakened and damaged hair.](https://cdn11.bigcommerce.com/s-vd54pgkzj9/images/stencil/300x300/products/308/1934/fondant-extentioniste-resistance-200ml-02-kerastase__85550.1652805325.jpg?c=1)
![A length-strengthening conditioner for weakened and damaged hair. A length-strengthening conditioner for weakened and damaged hair.](https://cdn11.bigcommerce.com/s-vd54pgkzj9/images/stencil/160w/products/308/3930/Extentioniste-Before-After-Kerastase__39042.1652805325.jpg?c=1)
Length strengthening shampoo for slow growing, damaged lengths. Weakened hair prone to breakage is strengthened as its internal structure is rebuilt and sealed to provide greater protection throughout its growth.
KEY BENEFITS
HOW TO USE
Apply a quarter size amount of Bain Extentioniste shampoo to wet hair. Massage through lengths and ends until lathered and rinse thoroughly.