Salvatore's Blue Gold Premium is the evolution of the progressive brush, it has an exclusive and concentrated tannin-based formula. Tanninoplasty acts to form a new protein chain and when activated by the temperature of the board, it provides the desired shape. Compared to the traditional one, it provides quick application and greater performance. The nanoparticles facilitate the absorption and greater adherence of assets, promoting resistance, treatment and intense shine while smoothing, it also has a greater thermal protection that prevents the fading of the fiber.