When to use KNOWN?
As used by families, medical professionals, and business owners nationwide
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When you need clear answers without confrontation
Get clarity without confrontation or guesswork
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When you need more than a quick snapshot
Detect substance use up to 90 days back, not just a few days
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When instant tests aren’t enough
Hair testing reveals what quick tests can miss
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When you need results you can trust
Each sample is professionally analyzed and verified
Why Choose Hair Testing Over Instant Tests
90-day detection window
Hair tests detect drug use up to 90 days back, while instant tests only show recent use within 1-3 days.
Lab-certified accuracy
Analyzed by certified laboratories with strict quality controls, ensuring reliable and legally defensible results.
Harder to cheat
Hair samples are collected under observation and cannot be easily substituted or adulterated like urine samples.
Real Data Insights
Results go far beyond yes or no, providing quantitative data for each of the 12 individually screed substances.
Current Savings
Order multiple tests and save!
Our tests never expire — so ordering more than one can save you time and money, while support our growing family company.
