Glycerine enters the lungs and breaks down to glucose. Your body handles glucose quite well, thank you, and excretes what it doesn't use.
PG has been tested -- see germ-killing vapor thread -- in primates. No problems, except they all gained some weight and didn't get sick!
Worry about this if you must. I do not. I worry about who makes our stuff and what might be in it that shouldn't be.
PG has been tested -- see germ-killing vapor thread -- in primates. No problems, except they all gained some weight and didn't get sick!
Worry about this if you must. I do not. I worry about who makes our stuff and what might be in it that shouldn't be.