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Test your body for PFAS. Then do something about it.

Measure your “forever chemicals” with an easy at-home blood test. If your levels are elevated, Tare connects you with physicians to help you clear PFAS faster. Real medicines. Results you can trust.

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Three ways to begin

Estimate your PFAS levels Not sure if PFAS is a concern for you? Answer a few quick questions about your water, where you’ve lived, and your work, and we’ll predict your PFAS levels. Free Take the quiz → Measure your PFAS levels Get your actual number with an easy at-home fingerstick test. See each PFAS compound in your blood, plus your overall Tare Score™ to track over time. $199 one time Start with a test → Already know your levels? Bring recent PFAS test results and go straight to a physician consult about lowering your levels. After three months, retest to see the difference. $169/mo × 3 if treatment is right for you Treat and retest →
Eric KeenEric Keen, Ph.D.
Dan BensimhonDan Bensimhon, M.D.
Read our full letter →

Forever chemicals (PFAS) are in the blood of 98% of Americans, and they’ve been linked to cancer, infertility, and developmental harm. Until recently, the honest medical answer to “How do I get them out?” was “Sorry, you can’t.”

We built Tare Health to change that. Tare is what we’d want for our own families: physicians who know the research, real medicines backed by published studies, and measurable results. And we stand behind what we’re doing: if your PFAS levels don’t drop, we refund your treatment costs. We can’t wait to help you see your own numbers come down!

Forever chemicals don't need to be forever

PFAS persist in your body for years because your gut and liver accidentally recycle them. New research suggests certain medications may break this recycling loop so you excrete PFAS rather than accumulating them.

For more info, see The Science

PFAS levels Time Natural With medication ~2–20x faster PFAS clearance with medication¹

1Based on within-study comparisons of PFAS reduction during treatment vs. untreated control periods in the same participants (Andersson et al. 2025). In this cross-over clinical trial, conducted in adults from a PFAS-contaminated community, serum PFAS declined ~2–20x faster during treatment than during untreated control periods. Effect size varies by PFAS compound. Individual results depend on baseline levels, ongoing exposure, and adherence.

Like a credit score for pollution, your Tare Score™ tracks your progress

82
Tare Score™

Your total PFAS burden in one number.
Lower is better.

CompoundBlood level (ng/mL)

Illustrative example, not a guarantee. These data come from the clinical trial reported in Andersson et al., where adults in a PFAS-contaminated community received medication to reduce their PFAS levels. Your own results depend on your baseline levels, ongoing exposure, and adherence, and may be higher or lower. See the science →

Your questions, our answers

For more, see What We Do and The Science.

How does treatment remove PFAS from my body?

It normally takes years (or even decades) to eliminate forever chemicals because your body keeps accidentally recycling them. In published clinical trials, certain medications have been shown to break this recycling loop. Like a magnet, these drugs bind tightly to PFAS molecules as they pass through your gut, so rather than being reabsorbed back into your bloodstream, PFAS exit your body in stool. Studies show that over months of consistent use, PFAS levels can steadily decline.

For the underlying biology, see The Science.

Is it safe? What are the side effects?

In published clinical trials, certain medications have been shown to accelerate PFAS clearance (see The Science). These medications have a well-established safety profile from 20+ years of clinical use.

A key safety feature: they work locally in your gut and aren't absorbed into your bloodstream. Unlike most drugs, these don't reach your liver, heart, or other organs, so systemic effects are minimal.

If your labs and history suggest treatment is appropriate, your physician independently decides whether to recommend treatment.

The medications studied for PFAS reduction are generally well tolerated. The most common side effects are gastrointestinal, such as constipation, gas, or bloating. These typically resolve within the first few weeks. To maximize your comfort, free side effect support is included with every course.

How much will my levels drop?

Published research suggests medication can produce substantial reductions in blood PFAS levels over 3 to 6 months of consistent treatment. Individual results depend on your starting PFAS levels, ongoing exposure, and medication adherence.

We retest your PFAS levels after three months of treatment to verify your reduction, with the option to continue as desired and clinically warranted. You receive both your pre- and post-treatment lab results.

What if it doesn’t work?

If you complete the full three-month course and your retest after three months of treatment does not show lower PFAS levels than your baseline, we refund your three months of treatment payments in full. There is no percentage threshold and no adherence fine print: any decline is your result; no decline is our refund.

One honest caveat: if you have documented ongoing high exposure, such as an active occupational source or an unaddressed contaminated water supply, reduction during treatment may be more difficult. You can assess your PFAS exposure via our free estimator.

Will my levels go back up after I stop?

They can. Tare is designed to remove the PFAS already in your body, not to stop new PFAS from arriving. If you're still being exposed via contaminated drinking water or an occupational source, your levels can climb again over time, though from a lower starting point than before. If you've reduced new intake and exposure was largely historical, your post-treatment levels are likelier to hold.

Is it covered by insurance or FSA/HSA?

Not right now. PFAS reduction isn't a recognized billing indication, and most plans don't cover off-label treatments. Our program is currently cash-pay, with transparent pricing and no hidden fees.

Most plans reimburse medications, physician consultations, and lab testing under FSA and HSA rules, though eligibility depends on your specific plan's terms and how the expense is characterized. Because these are pre-tax dollars, this can mean savings of ~30% for some people.

We provide itemized receipts you can submit to your plan administrator, and if yours requires a Letter of Medical Necessity, we'll help supply one. Confirm eligibility with your plan before assuming coverage.