The meth that is sold on the streets isn’t cut in the same manner as other drugs like heroin and cocaine by the manufacturers. It is typically cut with adulterants that have no additional effect on users, instead, it just lowers the actual amount of methamphetamine in what’s sold. One of the most common additives used for cutting meth is the chemical methylsulfonylmethane (MSM).
It is a supplement that is most commonly used to strengthen cartilage in the body. It looks similar to meth when processed and doesn’t have any serious side effects.