About DrugTestAnswers
DrugTestAnswers is a small independent publisher in the United States. We write plain-language guides about drug and alcohol testing for regular people facing a pre-employment screen, a random test at work, or just wanting to understand their own body.
What we cover
Detection windows by substance and specimen, how immunoassay screens and lab confirmations work, cutoff levels, false positives, home test kits, breathalyzers, and the facts about detox products sold online.
Who writes it
Articles are researched and written by the DrugTestAnswers editorial team. We are not doctors, toxicologists or lawyers, and we don't pretend to be. We don't invent experts or credentials. Instead we lean on published sources (SAMHSA, NIH, peer-reviewed research and federal regulations) and link to them so you can check our work. Read how we work.
How we make money
Some links go to TestClear, and we may earn a commission if you buy. See our affiliate disclosure.
What we won't do
- Help anyone defeat DOT, FAA, FMCSA, other federally regulated, safety-sensitive, probation or court-ordered tests.
- Promise a "guaranteed pass".
- Publish fake reviews, fake testimonials or made-up lab results.
No product can promise you a pass, and the only certain way is to not use. Tampering with a drug test can be illegal and is usually treated as a refusal. We never help anyone beat DOT, federal, safety-sensitive, or court-ordered tests. If substance use is getting on top of you, call the free, confidential SAMHSA National Helpline on 1-800-662-4357 (24/7, English and Spanish), or call or text 988 in a crisis. Source: samhsa.gov.