Can you get bold spots in different places of the scalp (patches) from coloring the hair? Product used was Loreal. No patch test was done first.

One can develop allergic reactions to hair products. If that happens, stop using them. You can then try a test spot to be sure. Make sure that these spots are not skin diseases like alopecia areata. A good doctor should be able to tell you if that is the case.

Balding Forum - Hair Loss Discussion

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