You only need to look at the pictures of a woman from Sheffield on today’s Daily Mail website to realise that when hair dye instructions say that you should always do a 48 hour patch test, they mean it. Apparantly caused by Garnier Nutrisse (owned by L’Oreal), her severe reaction meant she needed anti-biotics, antihistamine and a drip. Naturally, she’s pretty cross about the whole thing, but its a salutary warning for those of us (guilty as charged) who think that patch testing is a waste of time. The Daily Mail doesn’t report whether she was happy with her new hair colour or not.
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