The Redken Extreme Big Duo contains:1 x Redken extreme Shampoo, 500 ml.1 x Redken extreme Conditioner, 500 ml.Redken extreme shampoo: Redken Extreme Shampoo not only gently cleanses the hair, but strengthens it from the inside out. In order not to weigh down the hair, the shampoo mildly nourishes and provides the hair with important proteins. The hair shampoo provides up to 96 percent stronger hair.Strained and weak hair needs nourishing care that is perfectly tailored to the needs of the hair structure. Redken Extreme Shampoo revives and regenerates stressed hair. It gently cleanses and repairs brittle and damaged hair. After shampooing, hair is shiny, soft and light, looking powerful and healthy. Contains a special RCT protein complex. This has a protective and nourishing effect on the hair structure, from the tips to the roots, the hair looks strong, well-groomed and healthy after washing. Even a small amount is enough to lather even long hair optimally. The mix of soy proteins, ceramides, sepicap and arginine nourishes the hair and gives it more strength and power. The damaged hair surface is smoothed thanks to the active ingredient complex and the hair gets a radiant shine. Soy proteins also ensure that the roots get more structure and the hair thus appears fuller. Another advantage: The protection of the hair lasts and split ends and further damage is effectively prevented. This is mainly ensured by Sepicap, which gives the tips strength and power and protects them against external influences. With regular use of Extreme Shampoo, the hair becomes permanently smoother and looks healthy and shiny. It is wonderfully easy to comb after washing and falls silky soft. Redken's Extreme Shampoo is a professional care for damaged hair, which quickly leads to optimal results.Redken extreme Conditioner: The care conditioner smoothes and nourishes damaged hair after washing without weighing it down. The moisturizing formula has a restorative effect and provides strengthening and repair of damaged hair. The hair care with proteins promotes healthy shine and strengthens hair fibers.