As long as your hair and scalp are healthy, and you do an allergy test, there is no specific length required for using hair color. However, we at NATULIQUE recommend that you allow at least an inch of hair to grow before coloring it. This is so you can be sure that the hair is of good quality.
Also, NEVER color you hair during or after cancer treatment without explicit permission from your doctor!
Even though the NATULIQUE colors are made from natural ingredients and are 100% ammonia free, it is always a good idea to do a patch test to ensure that you are not allergic to it. Doing a patch allergy test is very easy.
It can be difficult to color hair after cancer. As a hairdresser, there are several coloring techniques, but it can be hard to color very short hair. When coloring 1-2 inches, the easiest technique is all over color. This can be applied to almost any length of hair.
Applying highlights in short hair can be even more difficult, but if you use a tint brush or a fine tail comb, this should make the job easier.
If you want to do foils make sure that the hair is at least 1.5 inches otherwise this may be impossible.