I am currently trying to get a better understanding of etg testing. Is there a test which measures etg in hair specimens, and if so, is this test used in abstinence programs? I'm reading conflicting reports in the internet. Thanks so much. MS
EtG hair testing is relatively new. Only one lab in USA might be doing hair EtG commercially (USDTL in Chicago). In my opinion it's not a good test to verify abstinence (which is one of the main reasons to utilize urine EtG testing) because it doesn't pickup small amounts of drinking (ie you must drink quit a bit to get the hair etg to turn positive - nobody knows how much yet as the research hasn't been performed). Hair EtG testing might be a good tool for research as hair levels have been shown to correlate with amount of drinking over time. There's a company in England claiming in their ads that hair EtG is as good as urine EtG for verifying abstinence. This is just absolutely unproven and not likely. (ie I think they are making false claims).