But is that still the case? I get my hair highlighted and colored, but I don’t think it’s too damaging. Yes, I suppose that it could be - someone forgets to set the timer, and my hair is destroyed, but can regulation prevent all of that?
No that is not the case today. Hair dressers were using home brew preparations which burned the scalp, others resulted in complete hair loss and chemicals were used which were highly carcinogenic or which contributed to organ (liver) failure.
It was a huge scandal when I was a child and it was scary. Regulation was the right thing to do and it should remain in place.