If you lighten fine hair and find that the new tone/color wonít take in the hair afterward, you will need to use a protein treatment in order to give the hair enough structure to hold the color. However, at that point,
you can expect that the color you apply will not last as long as you might hope.
Itís always better to change the color of fine hair (when going lighter) by no more than three lightness levels, and therefore be able to use a single-process color application Ė one that lifts the natural color and
applies a new color in the same process. Just remember that fine hair types will often process much more quickly than coarser hair, especially at the scalp, so start your color application 1-2 inches from the scalp
and massage the color into the scalp area after the first ten minutes have passed.
Applying darker color to fine hair, in a deposit-only process (one that doesnít lighten the natural color) can actually make the hair feel coarser and more substantial. In some cases, this result is enough for an
individual, and can be used in place of an acid perm to add texture to the hair. You can make the hair darker, or simply choose a color the same shade or one-step lighter and apply it as a deposit only procedure.