There's a huge amount of data on parabens, more than on any other preservatives and the safety really shouldn't be questioned the way it has been, the safety record heavily outweighs any risks. There are a few specific ones that have been banned in the EU but it's more out of precaution than any definitive data, they weren't very widely used before that anyhow. The science panel goes into it a bit but tl;dr, parabens are not something to be scared of. In the EU formaldehyde is not allowed in cosmetics, generally they're replaced by other preservatives but they're not as good as parabens so you need to use more.
Haha, yes, Sophie. I remember watching then and thinking ok, I can do that product and that order, nodding along and then the diffusing started and I was 😱😱😱😱
It is really sad though, she uploaded a quick video a couple of days ago wearing a beanie, feeling too embarrassed to show her hair, so I'm afraid the situation hasn't improved much.
The Devacurl implosion was a thing to behold, and as horrible as it is for those people I do think the method contributed to it in some part, or made it more severe. The science panel discusses it a little bit too, not in depth as they all seemed to have insider information they weren't willing to reveal but just the method and the mentality around it that encourages not so healthy behaviour when it comes to scalp health.