What reduces EtG in hair?
Can you elaborate on the mechanisms that lead to a decrease in Ethyl Glucuronide (EtG) levels in hair? Are there specific factors or conditions that can influence the body's metabolism of alcohol, resulting in lower EtG concentrations in hair follicles? Additionally, what methods are commonly employed to detect and measure EtG in hair, and how do these techniques account for potential fluctuations in EtG levels over time?