List Of Can A Hair Follicle Test Detect Infrequent Use References. You aren't going to pass a marijuana hair test if you've smoked, eaten pot within the past ninety days. Then, your hair sample is tested by a lab to determine if there has been any drug use for the last 90 days.
Web the short answer is no. Can a hair test detect one time use? Web hair follicle drug testing detects evidence of drug use or misuse in a sample of hair.
