Developer 40 Volumes

Sheis Beauty Developers are hydrogen peroxide-based developers in different concentrations (3%, 6%, 9%, and 12%) that can lighten hair by 1 to 4 shades depending on the selected volume. They are ideal for mixing with permanent dyes or for bleaching processes, achieving results from gray hair coverage to intense lightening. The choice of volume depends on the desired lightening level and hair type. Use: Mix in a 1:1 ratio with Sheis Beauty dye or bleaching powder. Apply to dry, unwashed hair, starting at the roots and extending to the ends. Leave on for 15 to 45 minutes, depending on the lightening level and the volume used. Monitor the process constantly to avoid damage. Rinse thoroughly with water and proceed with your usual post-color treatment.