This is probably a dumb idea so I'll just give the answer away... it's only interesting because it gives people an idea of what they consume and use.

PROPYLENE GLYCOL is found in both shampoos and engine coolants even some salad dressings, ice creams, you name it as a thickener & stabalizer. It comes from a brown algae.

The government consideres it "generally safe" because it hasn't killed enough people to consider it toxic. Although it does one positive thing for us, LOL and thats inhibiting absobption of stronium. which im sure you all know is extremely toxic from things of nuclear fall outs.

Good thing to know haha