Yes, well weed is a plant. One could argue that it was not made for inhaling either...but here we are.
I’m not concerned about these products and my body. This is the same heat transfer fluid alcohols used in food manufacturing. I know they are safe for any type of consumption.
The issue is with high heat combustion. Enough to vaporize the PG.
fortunately for me, none of my vaping equipment could ever reach that high of a temperature. At maximum, I’m still 100F below the danger zone. 😋