HSA/FSA Eligible health tracking Start Testing
HSA/FSA Eligible health tracking

Health tech that trusts the reader to slow down

Function reads like a premium editorial wellness journal printed on warm cream paper. We map 160+ biomarkers to uncover deep cellular patterns with private clinician review.

160+
Lab markers tracked
$1/day
Affordable wellness checks
100%
Private doctor reviews
Apothecary Flow

Wellness tracking made thoughtful

Step 01

Order your kit online

Choose from curated panel lists or build a custom kit. Shipped in a discreet, beautiful paper mailer.

Paper envelope kit box
Step 02

Collect your sample

A simple finger-prick blood test or saliva collection at home. Safe, quick, and clinician-verified.

Select Collection Date

June 2026
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Scheduled: Thursday, June 18
Step 03

Get doctor-reviewed insights

Receive detailed biomarkers inside your apothecary dashboard with tailored nutrition guides.

HIPAA & GDPR compliant
Dr Evelyn Thorne

"Function trusts the reader to slow down and understand their biology. It's health tech at its most thoughtful."

Dr. Evelyn Thorne, MD · Chief Medical Officer & Endocrinologist
Wellness Simulator

Dynamic wellness simulator

Select a panel category below to preview key clinical markers on our editorial charts, schedule your kit, and filter diagnostic terms.

These disease tags represent complex assays evaluated by our partner clinical labs:

Hormones & Thyroid

2.1
TSH uIU/mL
1.2
Free T4 ng/dL
14.5
Cortisol ug/dL
280
DHEA-S ug/dL
Axis Limit: Peak Clinician Level 100% Private Data

Inquire with Function Clinicians

Are you a health professional seeking to order wellness panels, or a customer with questions? Write to us.