Redken's Extreme Length Leave-In Treatment with biotin strengthens damaged hair and helps hair to grow longer and stronger. Extreme Length Leave-In Treatment helps prevent breakage to promote your strongest, healthiest hair.
- Fortifies and strengthens hair for 81% less breakage*
- 5x stronger hair
- Promotes healthy, stronger hair from root to tip
*Extreme Length Shampoo + Conditioner + Leave-in Treatment versus non-conditioning shampoo
- Helps prevent splits ends and reduce the look of split ends by 78%
- Formulated with biotin and soy protein to help strengthen hair
- Adds manageability, smoothness and shine
Apply to clean, damp, towel-dried hair. Leave-in. Style as desired. Use as a complete system with Extreme Length Shampoo and Extreme Length Conditioner with Biotin.