Product Principle
Urine methamphetamine (methamphetamine, also known as deoxyephedrine, commonly known as "methamphetamine") is mainly taken after methamphetamine (methamphetamine), excreted with unchanged original drug, long-term or large-scale use of methamphetamine will produce tolerance and physical dependence, but also lead to abuse. In general, methamphetamine in urine can be qualitatively detected within a few days of ingestion, with a sensitivity of 1000ng/ml.