Kérastase Bain Extentioniste is a strengthening shampoo formulated for hair prone to breakage and for those growing length. It offers a creamy, lathering texture that detangles while reinforcing strands, leaving hair smoother without heaviness. Best suited to regular use on color-treated or fragile hair, it focuses on fortifying lengths and improving manageability.
Ingredient Safety
No risk1
Low risk22
Moderate risk7