Strengthening hair from the root to the tip takes some real muscle when it comes to shampoo. You need a product that goes the distance, fortifying inside and outside the hair shaft, from root to tip.

Kérastase Resistance Bain Extentioniste is just that product, working with weak hair to rebuild the internal structure and sealing it to ensure the long-term health of hair is guaranteed.

Hair is thoroughly cleansed and cared for, fortified and strengthened. Kérastase Resistance Bain Extentioniste truly guarantees a stronger future for all lengths of hair.

Benefits:
- Cleanses, tones, and revitalises the hair fibre
- Rebuilds lost strength in the hair
- Reveals shiny, smooth hair
- Infuses hair with anti-break action
- Keeps hair soft to the touch