The Tecna Tsuyo 01 Shiki Technical Shampoo is specifically formulated as a pre-color treatment. This technical shampoo prepares the hair structure optimally to ensure vibrant, long-lasting color results. Utilizing advanced formulation, it gently cleanses the hair and scalp while creating the ideal canvas for subsequent chemical processes like coloring. It supports color adhesion and penetration, making it an essential step in a professional hair coloring service.