Most people would never choose to put a single one of these in their body, but users of meth do this on a regular basis. You might be surprised at just how many methamphetamine ingredients are highly toxic. Methamphetamine Ingredients: What’s Meth Made of? Here’s what you need to know about methamphetamine ingredients. The resulting product is just as bad, if not worse. Methamphetamine ingredients can be combined in a wide variety of formulas, but the basics are the same – and most of them are highly flammable and extremely lethal if ingested in any way. These chemicals can initially offer a high, but they can also cause serious harm or even death not only for those who take the drugs, but for those who make them as well. Methamphetamine is completely artificial, created of very toxic chemicals. Crystal meth, sometimes simply known as ‘meth,’ is a drug that can addict a person from the first time they try it.