In no way, shape or form! Actually, the less-harming color is the main color you ought to use on your hair outside the salon. "Transitory hair shading is an entire distinctive ballgame," says Diaz. "There are no opportunities for harm." Just do sure you change to a shading safe cleanser to save any transitory shading.
There's a trick, however: If you have ultra-light, normal hair, even impermanent shading may end up being increasingly lasting. "The darker the brief shading and the lighter the hair, the more it will take the shading to clean out," cautions O'Connor. It won't really ruin your normal hair shading, yet it might change it for somewhat longer than you sought after.