A gentle but strengthening sulfate- and silicone-free* shampoo for extremely damaged hair which has been chemically overtreated and physically stressed and is therefore prone to hair breakage. The free-from formulation, combined with the Double Bonding Technology, gently cleanses and penetrates deep into the hair fiber, building new fiber bonds and providing resistance to repeated damage. The pH-optimized shampoo neutralizes the pH-value of the hair after chemical services and minimizes the swelling of the scale layer during washing. Non-weighing, even on fine hair. *Free of Sodium Lauryl Sulphate & Sodium Laureth Sulphate, silicones and artificial colors. Free from ingredients of animal origin.