Unlike hair color, manicure does not make dye penetrate into hair interior. So you can minimize the burden on your hair. Risks of generating a splash and split ends are small, and rather it is possible to finish the hair shiny. However, manicure is merely a sticking of dye to the surface of hair. So, compared to color, dyes can not continue dyeing for such a long time. Every time I wash my hair with a shampoo, it may not be visible to the eyes, but the dye is peeling off little by little. As a rule of thumb, even if the dye is attached long, about 3 weeks is considered to be the limit. If you used color and had damage to your hair or scalp, try using manicure.