The H-Brush line, is an innovative system, which provides a high level of regeneration. It treats and provides perfect nourishment for the cortex, which has lost its mass through previous chemical processes. It is prepared with: keratin, which strengthens and restores the natural elasticity of the hair; green tea, a powerful antioxidant that repairs damage on a day-to-day basis and Pracaxi oil and N-Acetyl Cysteine, providing intense hydration for the strands, stronger hair, better alignment and shine, eliminating frizz and preventing fading through the natural pigments present in its formula. Explanation Damaged hair - H-Brush is a capillary repairing system, restores the softness, protein and volume of the hair. Damaged hair - H-Brush is a capillary repairing system, restores the softness, protein and volume of the hair. This product does not contain "formaldehyde".