Review Of How Long Does Meth Stay In Your Hair Follicles 2023. According to a 2004 study published in therapeutic drug monitoring, a blood test can detect a 22 milligram dose of crystal meth two days after a person has been smoking meth. Web up to $12 cash back very possible:

If you or a loved one tests positive for meth, a doctor may recommend inpatient or outpatient substance. Web no matter how much one washes or cuts the hair, tests can detect crystal meth for up to 90 days after the last dose. A section of hair, about 200 strands, is sent to a lab for testing.