Hair relaxants and l'oreal Iona hair color questions: Which should be done first: Relax hair or color it with l'oreal Iona (no ammonia)? Do hair relaxants contain ammonia?


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Reno Greer answered
You should always have your hair relaxed and then colored, with a few weeks in between the two services.  Many hair relaxers contain formaldehyde and this causes cancer.  You may want to consider using a relaxer that does not have formaldehyde.    Depending on the condition of your hair, it may be okay to relax it once a year.

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