Fine Hair (2)
Color:
Coloring fine hair types can be tricky if you are trying to lighten the color, particularly if you need to lighten the color and add a toning color, such as when taking a dark brown natural color to a light strawberry blonde.
The smaller diameter of the hair shaft means that the dispersal of the existing pigment can damage enough of the hair's structural integrity that it won't hold the desired new color. Lightening processes on fine hair types must be closely monitored, and should use low-volume peroxides. Failure to exercise proper care could even result in destroying the hair completely.
It's always better to lighten fine hair (when going lighter) by no more than three levels, and therefore be able to use a single-process color application - 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 faster than coarser hair, especially at the scalp, so start your color application 1-2 inches away from the scalp and massage the color into the scalp area after the first ten minutes have elapsed.
Applying a darker color to fine hair, in a deposit-only process (one that doesn't lighten the natural color) can actually make the hair feel coarser and more substantial. In some cases, this result is sufficient 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 shade lighter and apply it as a deposit-only procedure.
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See also:
How to treat fine hair
Thin fine hair and layers
What are the best bob hairstyles for fine hair?