I will tell you folks, I've worked in criminal defense for over 20 years, and meth is in a world all by itself. Aside from the fact it makes it harder for me to get Sudafed that my lousy sinuses need just so I can breathe...
I used to think cocaine, heroin, et. al. were bad things. At least most of the users could still be reachable on some level. Meth is far worse than any of those drugs ever thought of being. It has zero redeeming value. I've seen it wreck families, lives, jobs, etc.
If your child ever gets into this stuff, get them in a secure, lockdown facility that will provide intensive therapy and won't let them out until they can stand on their own feet. It's worse than just losing your teeth or your good name...you end up losing virtually anything and everything.
Bad, bad stuff.