I finished my nvq2 hairdressing training in July this year, and it is safe to use, as we were told that the chemicals arent the same as they used to be, the only risk is that as your hormones change, your hair becomes more porous (sucks up the hair colour more) so the result MAY become patchy. But everyone is different in the amount of hormones they get and where they are distributed.
Hope this helps
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