Sorry to bring up an old thread - just going through the persulfate reaction myself - red itchy swollen scalp and itchy palms. I have been having on scalp bleaching and started to react now. Would it be safe to foil in?
I am bumping this up to ask whether anyone would know whether olaplex can negatively interact with bleach and cause an allergic reaction? I have recently had olaplex added to my colour and my most recent colour ended up causing a reaction so I am looking into all of the options.