Incredible Mixing Semi Permanent Hair Color With Permanent 2023. You won’t need a developer, which means using fewer chemicals on your hair, so it stays healthy. Decide on the color you want to use.
Do use a 1:1 ratio of dye to developer (unless you’re trying to achieve a lighter shade, in which case you’ll want to use more developer than dye). Doing so can provide uneven results. Make sure your hair is clean and dry before applying the color.
