I remember reading about PEG400. Thanks for the info. I'll keep testing.
I read some of the literature on that and decided it was riskier than diacetyl....but see what you find!
I think a lot of people say they're 'allergic' when they're merely sensitive - like I am to VG. There's a BIG difference, no? VG won't kill me, but it does sit on my chest in an alarming way. Clearly HIC's problem with PG is more serious - but I suspect a lot of people who say they're 'allergic' to either one have a slight sensitivity (and particularly new vapers). Just my 02c worth of practicality!