Redken Extreme Length Leave-In Treatment 5.1 oz

Redken Extreme Length Leave-In Treatment with Biotin is a no-rinse strengthening treatment for anyone growing their hair longer. Infused with biotin, castor oil, and Redken's Length Care Complex, it seals split ends and fortifies fragile lengths so hair can reach its full length potential with less breakage.

Apply to damp hair from mid-lengths to ends before styling. With consistent use, hair looks visibly healthier — split ends are reduced by up to 78%, and lengths feel smoother, softer, and easier to manage. Professional salon formula in a 5.1 oz bottle.

• Visibly reduces the appearance of split ends by up to 78%
• Fortifies lengths to help prevent breakage as hair grows
• Infused with biotin and castor oil in a Length Care Complex
• Adds smoothness, shine, and manageability without rinsing
• Salon-professional leave-in formula, 5.1 oz