Repair and strengthen damaged hair with Redken Extreme Duo. Featuring a shampoo and a conditioner, this duo for damaged hair contains everything you need to protect and strengthen hair against further breakage.  

Redken Extreme Duo contains the following products:

Extreme Shampoo 1 Litre
This hair strengthening conditioner protects shine, repairs damaged hair and leaves it supple and shiny. A smart, targeted delivery system, the Protein Complex treats hair from the root to the core to the tip, giving all 3 levels the custom nourishment they need.

Extreme Conditioner 1 Litre
This hair strengthening conditioner protects shine, repairs your hair and leaves it supple and shiny, also using the Protein Complex targeted delivery system.