Extreme Length Leave In Treatment

Redken's Extreme Length Leave-In Treatment helps to reduce split ends and strengthen damaged hair. 

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. 

• Reduces breakage by 81% when used as a full system with Redken Extreme Length Shampoo and Extreme Length Conditioner
• Visibly reduces the appearance of split ends by 78%
• Formulated with biotin and soy protein to help strengthen hair
• Adds manageability, smoothness and shine