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WLC
Function Health - 1Function Health - 2Function Health - 3
outpatient premium

Function Health

San Francisco, United States Est. 2022
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66/100 WLC Score

Function Health democratizes advanced blood testing by offering 100+ clinically relevant biomarkers at an annual membership price. Their platform provides clear, actionable insights and personalized nutrition recommendations, making comprehensive health data accessible.

About Function Health

Founded in 2022, Function Health is a premium outpatient longevity clinic based in San Francisco, United States (West Coast). Function Health democratizes advanced blood testing by offering 100+ clinically relevant biomarkers at an annual membership price. Their platform provides clear, actionable insights and personalized nutrition recommendations, making comprehensive health data accessible.

Function Health covers 1 of 15 core longevity capabilities tracked by World Longevity Clinics, spanning advanced diagnostics, regenerative medicine, and recovery protocols. The treatment menu lists 4 distinct modalities (highlights include Advanced Bloodwork, Biomarker Panel (100+), Personalized Nutrition, Health Analytics Dashboard). Patients can choose from 1 structured program across day stay formats, with published pricing from USD 499 to 499.

Function Health has made comprehensive blood testing remarkably affordable and accessible at $365/year for 100+ biomarkers. The platform's user-friendly interface makes complex lab results understandable and trackable over time, and patient satisfaction ratings reflect genuine value for the price point. The Quest Diagnostics partnership ensures convenient scheduling at locations across the country, and many users report discovering actionable health insights that led to meaningful conversations with their physicians. Function Health is best understood as a lab testing platform rather than a…

Trust & Ratings

Independent assessment from our editorial team, verified patient feedback, and public ratings.

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WLC Editorial Review

Last reviewed March 2026

66
/100

Function Health has made comprehensive blood testing remarkably affordable and accessible at $365/year for 100+ biomarkers. The platform's user-friendly interface makes complex lab results understandable and trackable over time, and patient satisfaction ratings reflect genuine value for the price point. The Quest Diagnostics partnership ensures convenient scheduling at locations across the country, and many users report discovering actionable health insights that led to meaningful conversations with their physicians. Function Health is best understood as a lab testing platform rather than a longevity clinic. It excels at generating comprehensive blood data at an accessible price, democratizing a service that was previously available only through expensive executive health programs or concierge physicians. The platform provides context and reference ranges for results, though the level of personalized physician interpretation is limited compared to concierge practices. Follow-up test panels include a subset of the initial biomarkers, and availability varies by state. For individuals who want affordable access to comprehensive blood testing as one component of their health optimization strategy, Function Health delivers strong value. Those seeking in-depth physician guidance, advanced diagnostics like imaging or genomics, or therapeutic interventions will need to complement the platform with other providers.

"The most affordable comprehensive blood testing platform available, making advanced biomarker tracking accessible to a broad audience"

Strengths

  • 100+ biomarker panel at $365/year is the most affordable comprehensive testing option available
  • Strong patient satisfaction ratings across review platforms
  • User-friendly platform that makes complex results accessible and trackable over time
  • Co-founded by a prominent functional medicine physician with broad public recognition

Limitations

  • Primarily a testing platform rather than a clinical longevity practice, with limited physician interaction
  • Follow-up test panels include fewer biomarkers than the initial comprehensive panel
  • Not available in all US states without additional fees
Ideal for

Health-curious individuals seeking affordable, comprehensive blood testing as a starting point for health optimization

Consider alternatives if

Patients seeking hands-on physician guidance, advanced diagnostics (imaging, genomics), or therapeutic treatments

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Available Treatments & Features

Full Body MRI
Epigenetic Testing
Telomere Analysis
Stem Cell Therapy
NAD+ Therapy
Cryotherapy
Hyperbaric Oxygen
IV Therapy
Gene Editing
Peptide Therapy
Personalized Nutrition
Sleep Optimization
Neurofeedback
DEXA Scan
VO2 Max Testing

Treatment Categories at Function Health

A grouped overview of the longevity protocols offered at Function Health, organised by clinical category and explained in plain language.

diagnostics

Diagnostic testing forms the foundation of any longevity protocol — measuring biological age, identifying disease risk before symptoms appear, and establishing baselines for tracking the effects of interventions over time.

At Function Health: Advanced Bloodwork, Biomarker Panel (100+), Health Analytics Dashboard.

nutritional

Nutritional protocols are personalized based on bloodwork, microbiome analysis, and genetic markers to address specific deficiencies and optimize metabolic health, energy production, and inflammatory balance.

At Function Health: Personalized Nutrition.

Treatment Details

Advanced Bloodwork

diagnostics

Biomarker Panel (100+)

diagnostics

Personalized Nutrition

nutritional

Health Analytics Dashboard

diagnostics

Programs

Annual Membership

annual | day

USD 499
to USD 499

Twice-yearly testing of 100+ biomarkers with personalized insights dashboard and clinician support.

Advanced BloodworkBiomarker AnalysisPersonalized NutritionHealth Dashboard

Function Health: Frequently Asked Questions

Detailed answers about Function Health — what it is, where it sits in the longevity landscape, what treatments it offers, how much it costs, what to expect during a stay, and how to evaluate it against alternatives.

What is Function Health?

Function Health is a premium outpatient longevity clinic based in San Francisco, United States, founded in 2022. Function Health democratizes advanced blood testing by offering 100+ clinically relevant biomarkers at an annual membership price. Their platform provides clear, actionable insights and personalized nutrition recommendations, making comprehensive health data accessible. It covers 1 of 15 core longevity capabilities tracked on World Longevity Clinics, with 4 distinct treatment modalities listed in its profile.

Where is Function Health located and how do I get there?

Function Health is located in San Francisco, West Coast, United States. International patients typically arrive via the nearest international airport and continue by private transfer or rental car. Practical details (transfers, accommodation tie-ins, visa documentation for medical travelers) are available on the official Function Health website.

What treatments and programs does Function Health offer?

Function Health offers a longevity menu that includes Advanced Bloodwork, Biomarker Panel (100+), Personalized Nutrition, Health Analytics Dashboard. Programs are bundled into 1 structured pathway covering day formats, ranging from short diagnostic assessments to multi-week immersive protocols.

How much does Function Health cost?

Published pricing for Function Health starts at USD 499 to 499 (Annual membership $499/year for twice-yearly testing of 100+ biomarkers). Final cost varies with program length, diagnostic depth, optional treatments, accommodation tier, and follow-up commitments. As with most longevity clinics, prospective patients should request a written quote tied to their specific protocol before committing.

Who is Function Health best suited for?

Health-curious individuals seeking affordable, comprehensive blood testing as a starting point for health optimization It may be a less natural fit for those who: patients seeking hands-on physician guidance, advanced diagnostics (imaging, genomics), or therapeutic treatments

What is the methodology behind Function Health?

Function Health has made comprehensive blood testing remarkably affordable and accessible at $365/year for 100+ biomarkers. The platform's user-friendly interface makes complex lab results understandable and trackable over time, and patient satisfaction ratings reflect genuine value for the price point. The Quest Diagnostics partnership ensures…

How does Function Health compare with other longevity clinics?

Function Health sits in the premium outpatient segment, with 1/15 core longevity capabilities and a WLC Editorial Score of 66/100. Its key strengths include: 100+ biomarker panel at $365/year is the most affordable comprehensive testing option available; Strong patient satisfaction ratings across review platforms. The most direct comparisons are typically other premium outpatient clinics in the same price band — see the side-by-side comparisons and alternatives pages on World Longevity Clinics for a structured assessment.

What should I expect during a stay or visit at Function Health?

A typical pathway at Function Health starts with an in-depth diagnostic phase (bloodwork, imaging, biological-age markers and lifestyle assessment), followed by a personalized treatment plan combining the relevant clinical, regenerative and recovery protocols. Programs run from annual upward depending on the chosen pathway. Most longevity clinics close with a written report and a follow-up plan that extends the benefits of the on-site stay through the subsequent months.

Are the treatments at Function Health regulated and evidence-based?

Function Health operates under the medical regulation framework of United States under FDA jurisdiction for drugs and biologics, with the FTC monitoring marketing claims. As a general principle, longevity medicine combines well-established preventive interventions (diagnostics, lifestyle medicine, hormone optimization) with newer protocols where the evidence base is still maturing. Patients should ask any clinic — including Function Health — to clarify which therapies are standard of care, which are off-label, and which are offered under research or experimental frameworks.

How can I book or contact Function Health?

Bookings and program enquiries for Function Health are typically handled through the official website at www.functionhealth.com. For an objective comparison, you can also use the comparison and alternatives tools on World Longevity Clinics to evaluate Function Health against similar clinics before committing to a quote.