The silver mask from the Bonacure BC color-freezing range for gray and/or lightened hair deeply heals the hair fiber without weighing it down. The vegan formula, free of silicones and artificial colors, offers protection and color fixation to revitalize dull hair while neutralizing unwanted heat effects. It protects your gray or highlighted hair, extending the shine of your hair fiber. The secret? Maintaining a pH optimal of 4.5. For even better results, you can combine the gray hair mask with the Bonacure BC Color Freeze Silver Shampoo to lighten gray hair and neutralize warm tones.