+29 How Long Do Drugs Stay In Your Hair And Nails Ideas. Web fingernails are four times thicker than the typical strand of hair and often capture more of a substance than hair can. The time period during which drug or alcohol ingestion can be detected depends on the substance used, the amount used, and personal metabolism.

However, this time frame can vary depending on factors such as hair growth rate, drug type, and individual metabolism. What types of opioids can be detected in hair? One of the benefits of follicle drug tests is that they can show whether someone used or abused drugs as far back as three months before the test.