A. You are meant to use the mixture as soon as it is mixed according to the instructions but to do a skin test surely you have to mix it 48 hours before?
B. If you have used the same brand before but not that colour do you still need to skin test
(clueless)
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Stupid question about hair dye skin test
14 replies
hippowithsuncreen · 17/01/2016 14:00
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