Find out what you've been exposed to since the fires.
Traced is an at-home hair test, offered by LinusBio in coordination with LA Standing Homes, that maps hair strands for 15 elements — showing not just what's present, but how your levels have shifted over time.
This is the same LinusBio hair-analysis technology New York Times reporters Rukmini Callimachi and Blacki Migliozzi used in their investigation into fire-related exposure — now offered directly to the Eaton and Palisades fire communities.
Who this is for
Eligibility is intentionally broad. If you live, work, or go to school in the Eaton or Palisades fire area — or you have a standing home you visit, even if you don't live there full-time — you're eligible to order a kit.
What Traced measures
Hair strands are analyzed for 15 elements across three categories, plotted as a daily timeline rather than a single snapshot.
Toxic elements
- Aluminum
- Arsenic
- Barium
- Cadmium
- Lead
- Nickel
Nutrients toxic when too high
- Calcium
- Cobalt
- Copper
- Magnesium
- Manganese
- Phosphorus
- Zinc
Other toxic risk elements
- Lithium
- Strontium
How it works
Order a kit
Collect hair strands at home
Mail it back in the prepaid package
Get your results
Two testing options
Both use the same single-strand collection method; the difference is how far back the results reach.
Standard
1 cm of hair · ~30 days of history
$185
Extended COMMUNITY EXCLUSIVE
Up to 5 cm of hair · ~5 months of history
$285
Testing is offered at cost to the whole community — priced to cover only what it takes to process each sample, not to generate a profit.
Privacy & what this test is (and isn't)
Ordering a kit doesn't commit you to anything else, and it doesn't rule you out of a future community research study if one moves forward.
Results are de-identified and aggregated to help understand exposure across the community; your individual data is shared only with LinusBio, the lab performing your test.
This test is not intended to diagnose, treat, cure, or prevent any disease, and it doesn't replace advice from a medical professional.
Hair reflects both what your body absorbed and what it came into external contact with, so results are best read as a clue worth following up on, not a definitive answer.
Hair grows at a fairly predictable rate, so even the extended test reaches back only so far — a good reason not to wait too long to order if you want it to capture the last few months.
Have more questions? Read the frequently asked questions →
Ready to order?
Kits are ordered directly through the Traced order page and ship to your home with everything you need, including a prepaid return package.
Order your test kit →Standing Homes — [email protected]
LinusBio lab support — [email protected] · 877-546-8724
Traced is offered in coordination with LA Standing Homes, which is the combined neighbor to neighbor efforts of the Palisades and Eaton fires, and LinusBio, with EFRU (Eaton Fire Residents United) as a community research collaborator. Questions about eligibility, kits, or results are welcome any time at the email above.
Email: [email protected]
Site: www.standinghomes.org