FYI, the body produces acetone naturally. It comes in food grade, and is considered GRAS or Generally Regarded As Safe according to the msds and the groups deeming the toxicity of solvents used. Ethanol changes DNA, mutating it and embedding itself so it passes to our offspring. It's why alcoholism can be hereditary. It's LD50 is also eye opening. Isopropyl is garbage and residues are nasty. It's used as a denaturing product in mouthwash, so drunks don't try getting high ingesting it. But the human body does not produce etoh or isopropyl as it does acetone, naturally.