Synthetic urine is illegal to sell or distribute in Michigan, but simply using it or possessing it for yourself is not a crime under the state statute. Under MCL 750.410c, which took effect on July 19, 2022, it is a misdemeanor to distribute, deliver, sell, or possess with intent to distribute, deliver, or sell a “drug-masking product.”1Michigan Legislature. MCL – Section 750.410c A conviction carries up to one year in jail, a fine of up to $1,000, or both.
What the Law Bans
The prohibited conduct is supply-side. The statute reaches people who sell these products, deliver them, or hold them intending to move them to someone else. Personal possession and personal use are not listed as separate offenses in this section.
The definition of “drug-masking product” is broader than the phrase “synthetic urine” suggests. It covers four categories of items when the purpose is to defraud a drug or alcohol screening test:
- Synthetic urine — any substance designed to mimic the composition, chemical properties, appearance, or physical properties of human urine.
- Real human urine sold or distributed so someone else can substitute it during a drug test.
- Urine additives designed to be mixed into a sample to mask drugs or alcohol.
- Substances designed to be applied to hair or used on oral fluid to defeat those screening methods.
The fraudulent purpose is written into the definition itself.1Michigan Legislature. MCL – Section 750.410c A product only qualifies as a drug-masking product if it’s meant to beat a screening test. Synthetic urine sold for equipment calibration, laboratory research, or educational demonstrations sits outside the statute. Once a product is marketed as a way to pass a drug test, or shelved next to detox kits and “cleansing” drinks, that intended-use argument gets much harder to make.
The Penalty
A violation is a misdemeanor punishable by up to one year in jail, a fine of up to $1,000, or both.1Michigan Legislature. MCL – Section 750.410c That puts the offense at the higher end of Michigan’s misdemeanor range rather than the 93-day tier.
The direct sentence isn’t the whole picture. A misdemeanor conviction creates a permanent criminal record unless expunged, and that record can appear on background checks for jobs, professional licenses, and rental housing. A side-hustle sale that felt minor can trail a person for years.
What About Personal Use
Using synthetic urine on your own drug test isn’t a separate crime under MCL 750.410c. Buying a bottle and trying to pass an employer’s screening with it doesn’t put you in the statute’s crosshairs the way selling it does.
That’s a narrow safe harbor, though. The consequences that actually affect most people aren’t criminal — they’re what happens when you get caught.
Consequences at Work
Michigan has no state statute limiting private employers’ authority to drug test. Companies can require pre-employment testing, random testing, post-accident testing, and reasonable-suspicion testing, and they can discipline or fire workers who fail or tamper with a sample. If you’re caught with synthetic urine at a workplace test, the employer can treat it as a refusal or a positive result. In most workplaces the result is immediate termination.
The stakes rise for people working under federal drug testing rules — commercial drivers, pipeline workers, aviation employees, and others covered by Department of Transportation regulations. Federal protocols include specimen validity testing that checks temperature, pH, creatinine, and specific gravity on every sample. A specimen outside normal biological ranges is flagged as substituted or invalid, which counts as a positive. That triggers loss of DOT certification and a required return-to-duty process before you can work in a safety-sensitive job again.
Court-Ordered Tests Are a Different Problem
If you’re on probation or parole and use synthetic urine on a court-ordered test, the criminal statute is the smaller of your worries. Supervision terms almost always require you to submit to drug testing and to avoid new offenses. Faking a sample violates both.
A probation violation lets the judge revoke probation and impose the original suspended sentence. Depending on the underlying conviction, that can mean jail or prison time well beyond the one-year cap on the synthetic urine offense itself. Judges treat attempts to deceive the court as a serious breach, and the outcome is rarely a light one.
Legitimate Uses and Defenses
Because the statute’s definition turns on fraudulent purpose, the cleanest defense is showing legitimate use. Labs calibrating testing equipment, universities running research, and manufacturers developing products all handle synthetic urine without any intent to defraud a screening test. Documentation of that business purpose is the simplest protection.
For someone charged with selling or distributing, the prosecution has to prove the intent element — that the seller knew or intended the product would be used to cheat a test. A retailer might argue novelty or fetish marketing, but the argument weakens if the same store sells detox drinks, advertises “pass your test” products, or advises customers on how to use the item during a screening.
Standard procedural defenses apply as well. Evidence obtained through an unlawful search, or an arrest without probable cause, can be suppressed regardless of what the substance turns out to be. Those defenses turn on the facts of the stop, not on the synthetic urine law itself.