I don't vape. My knowledge of oil chemistry is on shaky ground and I've already deleted one comment because I blurted something out half remembered and was like

I don't vape. My knowledge of oil chemistry is on shaky ground and I've already deleted one comment because I blurted something out half remembered and was like "Wait. That's not actually correct." What I'm telling you is that glycerin is not a lipid, though it appears to be a building block of lipids. So glycerin being a basis for vaped products is irrelevant. My general understanding is any amount of oils going into the lungs is a bad idea. This is not about medicinal dosage. This is about mechanically blocking lung function.