Environmental exposure testing for the Palisades and Eaton Fire Communities

After initial pilot testing, Traced is now available to anyone who lives, works, or attends school in the Palisades and Eaton Fire communities.

Order your test › Time leaves traces. We read yours.
The test

One strand of hair. A 30-day view of your exposure.

Traced is an at-home environmental exposure test. From a single strand of hair, it maps your exposure to 15 elements across roughly 30 days, tracking not only what is present but how your levels shift over time. Collection takes seconds at home, and the prepaid kit ships back to our lab with no needles, clinic visit, or prescription.

Each report includes
Traced Score

A single number summarizing your overall exposure profile.

Daily timeline

A day-by-day timeline for each of the 15 elements measured.

Percentile ranking

Every element ranked against a global reference database.

Tailored guidance

Practical pointers to common, everyday sources of each element.

15 elements measured
Toxic elements
AluminumArsenicBarium CadmiumLeadNickel
Essential nutrients
CalciumCobaltCopper MagnesiumManganesePhosphorus Zinc
Other elements
LithiumStrontium

Reading the results together

Beyond individual reports, the LinusBio and Communities teams are working together to understand results at a community level. Aggregated, de-identified data helps both teams map shared exposure patterns across the Palisades and Eaton neighborhoods, and forms the foundation of an ongoing research collaboration into environmental exposure in fire-affected communities.

Your partnership access
01

Pricing offered at cost

Through the StandingHomes.org partnership, testing is offered at cost to the whole community, priced to cover only what it takes to process each sample.

02

Extended testing, exclusive to partners

Community members also gain access to extended testing, which reads up to 5 cm of hair for roughly 5 months of exposure history. This longer window is not available to the wider public.

How to order

Choose your community, then your test.

Each community has its own ordering links. Select standard or extended testing below, then tap the button to order or scan the code to continue on your phone.

Palisades Fire Community
Standard testing
1 cm of hair  /  ~30 days of history
Order standard test ›
Scan to order Palisades standard test
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Extended testing
up to 5 cm of hair  /  ~5 months of history
Order extended test ›
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order
Eaton Fire Community
Standard testing
1 cm of hair  /  ~30 days of history
Order standard test ›
Scan to order Eaton standard test
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order
Extended testing
up to 5 cm of hair  /  ~5 months of history
Order extended test ›
Scan to order Eaton extended test
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order