Redken Extreme Duo gives hair tremendous strength and fortification. This shampoo and conditioner, which are specifically made for brittle and damaged hair, strengthen hair to prevent breakage, damage, and split ends. These products treat the hair from the inside out to strengthen and improve quality. They are made with different proteins that are known to promote healthy hair. According to studies, using this shampoo and conditioner consistently could cut hair breakage by up to 75%. The 300ml Redken Extreme Shampoo is part of this set. With this protective shampoo, you can cleanse and nourish your hair while also reaping the benefits of strengthening and fortification. This shampoo targets hair strands at the tip, core, and root thanks to its special formulation of the RCT protein complex, which contains three proteins that promote healthy hair. Perfect for