160+ biomarkers · a genome · an AI that never sleeps

An AI doctor's office, with full resolution.

160+ labs, your whole genome, and every wearable signal — read in real time by an AI grounded in your data, with board-certified physicians who sign off on every clinical call. One membership. Decoded for life.

4.9 · 14,200+ members
NYTimes Bloomberg WSJ Wired
ApoB · optimal
Down 14 mg/dL since Q1 — protocol working.
hsCRP · elevated
Recommend dietary review with Dr. Patel this week.
VO₂ max · 92nd %ile
Top decile for your age & sex cohort.
Live · last sync 3m ago
Cohort: F · 38 · 2026 Q2
87 ApoB hsCRP HbA1c Vit D Cortisol TSH Ferritin
87
Score
Health Intelligence Index
Your body is operating in the top 13% of your cohort.
Heart
94
Metab
88
Inflam
71
Hormone
85
Sleep
92
Trusted by clinicians at
Cleveland Clinic Mayo UCSF Mount Sinai Johns Hopkins Stanford
01 · Biomarker Library

160+ markers across 5 systems. Every result, contextualized for you.

Function tells you what the number is. Rejuve Function tells you why it changed, what to do next, and which physician to talk to.

02 · Health Intelligence

A dashboard built for longitude, not just labs.

The state-of-the-art component every health platform wishes it had. Real-time signal fusion across labs, wearables, imaging, and your physician's notes.

Health Intelligence Index
87 +4 this quarter
Composite of 160+ markers, weighted by clinical risk.
87
+4 vs Q1
Heart
94
Metabolic
88
Hormone
85
Inflam
71
24-Month Trajectory
Your biomarkers, on the way to optimal
ApoB (mg/dL)
76 ↓ 14
HbA1c (%)
5.1 ↓ 0.4
VO₂ max
48 ↑ 6
Sleep efficiency
94% ↑ 8
Your Physician
PA
Dr. Priya Anand
Internal Medicine · Longevity
MD · Stanford 14 yrs A4M Cert
"Your inflammation is the only outlier — and it's seasonal. Let's revisit in 6 weeks."
Active Protocol
3 actions, prioritized by impact
Updated 2 hours ago by Dr. Anand
Omega-3 · 2g daily
Targets hsCRP elevation · 8 wks
High impact
Sleep window: 10:30–6:30
Consistent ±15min · cortisol shift
Daily
Zone 2 cardio · 4×/wk
45min, HR 130–145 · VO₂ max
Wearable-tracked
Live wearables
Resting HR
52 bpm
HRV
68 ms
Sleep
7h 42m
Recovery
94%
Attention needed
hsCRP trending up 3 quarters
Schedule call with Dr. Anand · Next opening Wed 2:30pm
Full-body MRI
98.4%
Clean · 0 findings
AI Companion · Atlas
A
"Your ApoB just hit Function's optimal range. Want me to draft a note for Dr. Anand celebrating that win?"
03 · Applied AI

The AI isn't a feature. It's the whole point.

Most health apps bolt a chatbot onto a lab report. We built a system that reads your entire record — labs, genome, wearables, visit notes — and works on your health every hour, not once a year.

Powered by Claude Grounded in your data — no hallucinated numbers Human-in-the-loop — clinicians sign every clinical action
● Live Claude
Atlas · your AI doctor's office

Ask anything about your health. Get an answer grounded in your actual results.

Atlas reads every biomarker, every wearable signal, every visit note — then triages, interprets, and escalates to your physician's team 24/7. Emergencies are caught instantly and routed to 911 + on-call. It never invents a number it can't cite.

"Why is my hsCRP rising?"
Three things I'm watching: seasonal allergy (your last two spikes matched pollen season), a ~1h18m/night sleep deficit, and a slow ferritin drift already queued for your May 14 visit. I'd hold off on any medication and recheck in 4 weeks
Outbreak Radar

Warned before the CDC knows.

Anonymous symptom signals from the member network, watched in real time. When a cluster crosses threshold near you — often days before official surveillance — you're alerted with a concrete action.

Differential privacyReal-time
Ambient AI Scribe

The visit gets documented. The doctor watches you.

Clinicians record the visit; Atlas writes the SOAP note, suggests ICD-10 and CPT codes, and stages it for a one-click signature into the EHR. Draft-only — nothing enters the record unsigned.

SOAP + codingFHIR push
Genomic risk engine

Your genome, linked to the labs it actually moves.

Whole-genome polygenic risk scores and pharmacogenomics — so an HFE variant explains your rising ferritin, and every prescription is dosed to your metabolism.

PRSDrug metabolism
Voice mental-health check-ins

20 seconds of speech. A read on how you're really doing.

A short voice check-in scores mood, energy, and vocal stress — and flags the downward drift you can't feel yet, before it becomes a crisis. Backed by a 988 safety pathway.

Drift detectionPHQ-2 / GAD-2
Sleep & nutrition intelligence

Habits that talk to your bloodwork.

A full-night hypnogram and a calorie/macro log that don't live in a silo — they connect fiber to your hsCRP and sleep debt to your recovery, then coach accordingly.

HypnogramLab-linked macros
Meet Atlas See membership Every AI surface is grounded in your data and reviewed by clinicians.
04 · The honest comparison

What Function gives you. What Rejuve adds. What you actually deserve.

We respect Function — they raised the bar. So we raised it again with longitudinal AI, named physicians, and lifelong protocols.

Standard Annual
Function Health
Rejuve Function
Biomarkers tested
~20
160+
160+  + wearable fusion
AI longitudinal trends
Basic
 Predictive · 24-mo
Named physician (yours)
 Board-certified, lifelong
Active protocols (not just numbers)
Read-only
 Personalized, tracked
Imaging included (MRI · DEXA)
Add-on
 Annual, included
GLP-1 weight management
 Integrated · Rejuve Meds
Annual cost
$300+ (after insurance)
$365
$499
05 · Membership

One membership. Three depths.

Start with labs and AI. Add a physician when you want one. Add imaging and meds when you're ready.

Essentials
Match Function. Stay tracked.
$349/yr
Or $35/mo · cancel anytime
  • 160+ biomarkers, 2× per year
  • AI longitudinal dashboard
  • Wearables integration (Apple, Oura, Whoop)
  • Atlas AI companion
  • Self-serve protocols
Choose Essentials
Concierge
Imaging, meds, longevity.
$1,899/yr
Annual only · waitlist
  • Everything in Function
  • Annual full-body MRI
  • DEXA + VO₂ max testing
  • GLP-1 program (Rejuve Meds)
  • Physician-on-call (24/7)
  • Family member add-ons
Join waitlist
06 · Medical Board

Built with the clinicians we'd want for ourselves.

Independent advisors who shape every protocol, biomarker reference range, and AI recommendation.

SA
Dr. Sarah Aminzadeh
Internal Medicine
Stanford School of Medicine
MK
Dr. Marcus Kobayashi
Cardiology · Lipidology
UCSF Cardiovascular Institute
JM
Dr. Joanna Mehta
Endocrinology
Mount Sinai Medical Center
DR
Dr. David Rivera
Preventive Medicine
Cleveland Clinic Foundation
07 · Member Stories

"I've done Function for two years. What Rejuve added is the person — Dr. Anand caught my thyroid drift in a 12-minute call before any number flagged. That's the difference."

EW
Elena Whitmore
Founder · 38 · member since 2024

The only health platform that grows with you.

Start with 160+ biomarkers. Add a physician. Add imaging. Stay decoded for the rest of your life.