Most of the time these oils get re-filtered a few times just to be safe, so the oil itself usually isn’t the main issue. The bigger problem tends to be what’s actually inside the carrier oil. EO shows up fairly often, and that’s what usually causes allergic reactions, nasty pip, inflammation, redness, and that classic “why did I do this” moment after pinning.
That said, only a smaller percentage of people seem to react badly, which is why you don’t see nonstop horror stories in those threads. Plenty of guys run these oils with zero issues and never post because nothing exciting happened.
So is it safe for everyone? Probably not. Is it fine for most people? Based on how many keep using it without problems, it seems so.