Mycotoxin testing is available through specialty laboratories that ship urine collection kits directly to your home, through functional medicine practitioners who order panels on your behalf, and through environmental testing companies that analyze dust samples from your house. Most of these tests cost between $150 and $400 out of pocket, and insurance rarely covers them.
Urine Testing Through Specialty Labs
The most common way to test for mycotoxins in your body is a urine panel. Several commercial laboratories offer at-home collection kits that you order online, use at home, and mail back for analysis. RealTime Laboratories is one of the most widely used, screening for 16 mycotoxins including aflatoxins, trichothecenes (a group produced by black mold and related species), ochratoxin A, and gliotoxin. Mosaic Diagnostics (formerly Great Plains Laboratory) and Vibrant Wellness offer similar panels.
The process is straightforward: you collect a urine sample at home, package it according to the lab’s instructions, and ship it back. Urine is the preferred sample type because collection is non-invasive and the sample remains stable during shipping. Results typically come back within a few weeks and show the levels of each mycotoxin detected in parts per billion (ppb).
What the Results Mean
Labs report your mycotoxin levels alongside reference ranges developed from control groups. In one study of people with no known mold exposure, trichothecene levels in urine were below 0.2 ppb, aflatoxin levels below 1.0 ppb, and ochratoxin levels below 2.0 ppb. People in the control group had no detectable mycotoxins at all. If your results come back above these thresholds, it suggests exposure beyond normal background levels.
That said, there’s an important caveat. No mycotoxin urine test has been approved by the FDA for diagnostic use. The CDC has stated plainly that mycotoxin levels that predict disease have not been established, and it does not recommend biological testing for people living or working in water-damaged buildings. This doesn’t mean the tests detect nothing real, but it does mean results should be interpreted carefully, ideally with a practitioner experienced in environmental illness, not used as a standalone diagnosis.
Finding a Practitioner Who Orders These Tests
You don’t always need a doctor’s order to purchase a urine mycotoxin kit directly from a lab, but working with a knowledgeable provider helps with both interpreting results and deciding on next steps. Functional medicine and integrative medicine practitioners are the most likely to be familiar with mycotoxin testing and mold-related illness. Many conventional doctors are unfamiliar with these panels or skeptical of their clinical value, which can make the experience frustrating if you go that route.
When looking for a provider, prioritize someone with specific experience in environmental illness and mold exposure cases. The International Society for Environmentally Acquired Illness (ISEAI) maintains a provider directory. Some practitioners offer telehealth consultations specifically for mold illness, which expands your options if no one local fits the bill.
Testing Technology: ELISA vs. Mass Spectrometry
The two main technologies labs use to detect mycotoxins in urine are ELISA (an antibody-based method) and LC-MS/MS (liquid chromatography with mass spectrometry). LC-MS/MS is considered the gold standard because it can identify and quantify multiple mycotoxins with high precision. Between 2015 and 2020, about 61% of published research on mycotoxin detection in humans used this method. The downside is that it requires expensive equipment and highly trained technicians, which contributes to higher test costs.
ELISA is less expensive and faster but can be less specific, meaning it occasionally flags compounds that are structurally similar to the target mycotoxin. Some labs use ELISA as a primary screen. Knowing which method your lab uses can help you and your provider gauge how much weight to put on borderline results.
Preparation Before Collecting Your Sample
Some practitioners recommend “provocation” protocols before urine collection, such as taking glutathione or using a sauna, with the idea that these mobilize stored mycotoxins and increase what shows up in urine. Whether to do this is a decision between you and your provider. Other practitioners prefer unprovoked samples to get a baseline reading. If you’re testing without provocation, some protocols specifically advise avoiding glutathione and sauna on the morning of collection so your results reflect your everyday excretion levels rather than an artificially elevated snapshot.
Testing Your Home for Mold
If you suspect your home is the source of exposure, environmental testing can identify which mold species are present and how heavily contaminated the space is. The two most common dust-based tests are the ERMI and the HERTSMI-2, both developed using methodology from the EPA.
The ERMI (Environmental Relative Moldiness Index) analyzes settled dust for 36 mold species using DNA-based detection. It produces an index score you can compare against a national database of reference homes. It costs around $285. The HERTSMI-2 is a narrower screen that tests for five species most associated with water-damaged buildings: Aspergillus penicillioides, Aspergillus versicolor, Chaetomium globosum, Stachybotrys chartarum (black mold), and Wallemia sebi. It runs about $150. Since the ERMI includes all five HERTSMI species plus 31 more, it’s the more comprehensive option if budget allows.
You collect these samples yourself by gathering dust from your home according to the lab’s instructions, then mailing it in. Mycometrics is one of the main labs processing both ERMI and HERTSMI-2 tests. Results arrive within a couple of weeks.
Cost and Insurance Coverage
Nearly all mycotoxin testing, whether for your body or your home, is an out-of-pocket expense. TRICARE explicitly does not cover urine or serum mycotoxin testing, and most private insurers follow the same policy since the tests lack FDA approval for clinical diagnosis. Urine panels from specialty labs generally fall in the $300 to $400 range. Environmental dust tests run $150 to $285 depending on the panel.
If you’re dealing with symptoms your doctor suspects are mold-related, standard allergy testing for mold sensitivity is a separate, more conventional test that insurance is more likely to cover. This won’t tell you about mycotoxin levels specifically, but it can confirm whether your immune system reacts to common mold allergens.