Function Health vs. Superpower: Which Blood-Test Membership Is Better in 2026?

Function Health and Superpower are consumer health platforms built around broad laboratory testing. Both let members order more blood tests than they would usually receive at an annual physical, review the results in a dashboard, and receive written guidance without first asking a primary-care doctor to order every test.

Function Health costs $365 per year. It starts with more than 100 tests and includes a second round of more than 60 tests three to six months later. Superpower starts at $199 per year and includes one annual draw reporting more than 100 biomarkers, plus a personalized action plan and on-demand access to its care team.[1][2]

The short answer is that Function is the better fit for someone who wants a second testing round included in the base price. Superpower is the better fit for someone who wants the lowest starting price and more help acting on the results inside the same platform.

Neither membership replaces comprehensive primary care. Function does not diagnose or treat. Superpower offers access to clinical support and separately priced prescriptions through affiliated providers, but its platform terms also say the membership itself does not create a provider-patient relationship.[3][4]

Function Health vs. Superpower at a Glance

The headline biomarker totals are not directly comparable. Function's “160+” is an annual service count that combines the initial panel with repeated tests at midyear. Superpower's “100+” includes a mixture of direct laboratory measurements and calculated health metrics from one draw.[1][2]

How Function Health Works

Function Health is a $365 annual laboratory membership. Members begin with more than 100 tests covering cardiovascular health, metabolism, thyroid, hormones, liver, kidneys, inflammation, nutrients, autoimmunity, and selected heavy metals. Three to six months later, the membership includes a fixed follow-up panel of more than 60 tests.[1]

Testing takes place through Quest Diagnostics. Function says it is available in 48 states, excluding Rhode Island and Hawaii, and is not yet offered in Puerto Rico.[1]

Results arrive in stages because different assays take different amounts of time. Once the complete set is available, a clinician reviews the results and adds a written summary. Members receive explanations and action items for individual findings. A healthcare provider calls if a result reaches a critical level.[1]

The membership also includes a dashboard for tracking changes and uploading outside laboratory reports. Members can purchase individual retests, additional blood tests, the Galleri multi-cancer test, MRI, and computed tomography separately.

Function describes itself as a healthcare technology company rather than a medical provider. Its current service disclaimer says it does not provide medical advice, diagnosis, treatment, or a medical opinion. Members are expected to take results to their own physician when a finding needs medical follow-up.[3]

Function Health is strongest when you want:

• two testing rounds included in one annual price

• a fixed midyear panel for trend tracking

• clinician review and a full written summary

• heavy-metal testing in the core membership

• access to imaging and other add-ons in the same account

• a record you can download and share with your physician

How Superpower Works

Superpower's standard membership costs $199 per year in most states. It includes one blood draw reporting more than 100 biomarkers, 17 health scores, a biological-age estimate, a personalized action plan, an AI assistant, and on-demand care-team support.[2][5]

The company says testing is available through more than 2,000 Quest locations. An at-home blood draw is available for an additional fee. Results generally arrive within about a week.[2]

Superpower puts more emphasis on what happens after the report. Its platform creates a personalized protocol covering lifestyle, diet, and supplements. Members can message the care team and access a marketplace for additional tests, supplements, prescriptions, and peptides. Those products and medications are not included in the $199 fee.[2][4]

The distinction between platform support and medical treatment matters. Superpower's terms say the platform does not diagnose or treat and does not itself create a provider-patient relationship. Its membership agreement says medical groups and other third-party providers may provide healthcare services through the platform. Prescriptions require a separate clinical interaction, must be appropriate for the patient, and cost extra.[4]

Superpower includes one testing round. Additional retesting is optional and costs extra. Current Superpower pages display slightly different prices: its enrollment selector shows a second annual test for an additional $169, while its June 2026 Function comparison lists an optional retest at $179. Confirm the current amount during checkout.[5][6]

Superpower also says its standard price varies in New York and New Jersey. Several current enrollment pages show $399 in those states, which changes the price comparison materially.[5]

Superpower is strongest when you want:

• the lowest first-year price in most states

• one annual blood draw instead of an included second round

• a personalized action plan and biological-age score

• on-demand messaging about the results

• wearable and prior-record connections

• access to supplements, prescriptions, and additional diagnostics through one marketplace

Do You Get More Biomarkers With Function or Superpower?

The honest answer is that the marketing totals measure different things.

Function advertises more than 160 annual laboratory tests. That total consists of an initial round with more than 100 tests and a midyear round that repeats more than 60 measurements. It is not a count of 160 entirely different biomarkers.[1]

Superpower advertises more than 100 biomarkers from one annual draw. Its own test page says that total includes direct laboratory measurements and derived metrics. A ratio calculated from two existing laboratory values is useful information, but it is not another vial or laboratory assay.[2]

Both core panels include many of the tests buyers in this category usually seek, including:

• complete blood count and metabolic measurements

• standard cholesterol plus ApoB and lipoprotein(a)

• fasting glucose, hemoglobin A1c, and insulin

• thyroid measurements

• sex hormones

• liver and kidney function

• iron, vitamin D, vitamin B12, and other nutrient measurements

• inflammatory markers

There are real panel differences, but “160 versus 100” does not summarize them accurately. Compare the individual test lists against your goals, medications, family history, and previous results. A large headline count can include repeat measurements, calculated ratios, or tests that have little relevance to your situation.

Which Membership Costs Less?

Superpower has the lower entry price in most states: $199 compared with Function's $365.

The comparison narrows if you want to test twice during the year. Adding Superpower's currently advertised $169 to $179 retest brings the annual total to roughly $368 to $378. Function includes its 60+ midyear panel in the $365 base price.[1][5][6]

The testing rounds are still different. Function's second round is a predetermined panel of more than 60 measurements. Superpower describes its paid option as another broader retest. Buyers should compare the actual follow-up list, not only the final price.

Other costs can change the answer:

• Superpower's price may be $399 in New York and New Jersey.

• Superpower charges extra for at-home collection, prescriptions, supplements, and add-on diagnostics.

• Function charges extra for on-demand retests, add-on blood tests, MRI, computed tomography, and multi-cancer screening.

• Neither company uses ordinary health-insurance billing for the standard membership.

• HSA and FSA eligibility depends on the product and the member's plan. Function does not guarantee reimbursement; Superpower markets its membership as eligible.[1][2]

The lowest advertised price is therefore not always the lowest total amount you will spend. Decide whether you expect one draw, two draws, prescription treatment, imaging, or specialty add-ons before comparing annual totals.

Clinical Support Is the Biggest Difference

Function and Superpower both involve clinicians, but the services are organized differently.

Function focuses on reviewing and explaining the laboratory results. A clinician flags findings and writes a summary, and a provider calls about critical values. Function then directs the member to an outside physician for diagnosis and treatment.[1][3]

Superpower adds a care-team messaging layer and a personalized protocol. It also provides access to third-party clinicians who may prescribe medication when appropriate. This gives members more ways to act without immediately leaving the platform.[2][4]

Superpower still does not replace primary care. Its own terms explicitly say the platform is not designed to replace the relationship between healthcare providers and patients. A marketplace consultation for a specific prescription is different from having one physician responsible for your full history, examination, preventive screening, acute problems, referrals, and long-term treatment plan.[4]

If you already have a physician who will review outside results, Function's testing-first structure may be enough. If access to your current doctor is limited, Superpower's messaging and protocol may feel more useful. You still need to establish who will manage a persistent abnormality or a problem outside the platform's available treatments.

Data, Imaging, Supplements, and Prescriptions

Both companies want to become the account where consumers organize more of their health information.

Function now extends beyond blood tests through MRI and computed tomography access and its integration of SuppCo's supplement tools. Function is also a supported connection for Health in ChatGPT.[1][7][8]

Superpower lets members upload prior health records and connect wearables including Apple Health, Oura, and Whoop. Its marketplace offers additional diagnostics, supplements at member pricing, and access to prescription medications and peptides through third-party providers.[2][4]

The practical distinction is emphasis:

• Function emphasizes measurement and longitudinal tracking. Its included second panel and imaging expansion support that strategy.

• Superpower emphasizes an action layer. Its protocol, messaging, marketplace, and prescription access are designed to keep more next steps inside the product.

Founders and Origin

Function Health was founded by Jonathan Swerdlin, Pranitha Patil, Mark Hyman, M.D., Seth Weisfeld, Dan Swerdlin, and former chief technology officer Mike Nemke. The company launched its beta in April 2023. Its founding team combined healthcare entrepreneurship, clinical functional medicine, strategy, product design, and technology.[9][10]

Function had nearly 50,000 paying members by June 2024.[10] It later raised a $298 million Series B at a $2.5 billion valuation and secured $450 million in General Catalyst growth financing in July 2026.[11][12] It is the larger and better-capitalized company in this comparison.

Superpower was founded in 2023 by Jacob Peters, Max Marchione, and Kevin Unkrich. The founders have described personal experiences with delayed diagnoses and serious illness as the reason they wanted to build a more proactive health service.[13][14]

Superpower emerged from stealth with a $6 million seed announcement in 2024. In April 2025, it announced a $30 million Series A led by Forerunner Ventures with participation from Susa Ventures, Day One Ventures, Long Journey Ventures, and other investors.[14][15]

The funding gap affects strategy. Function has the resources to pursue acquisitions, large distribution partnerships, imaging, and national consumer advertising. Superpower is competing with a lower price and a broader set of action tools around the initial test.

The Risk Both Memberships Share

Broad testing can find an important problem that narrower testing missed. It can also generate borderline results, temporary abnormalities, and follow-up procedures that do not improve health.

A 2026 review of predictive biomarkers in asymptomatic adults found limited evidence that many biomarkers marketed to healthy consumers improve patient outcomes. The authors identified false positives, anxiety, overdiagnosis, and additional testing as potential risks. They emphasized the value of primary-care interpretation based on the patient's actual risks.[16]

Laboratory measurements also vary naturally. In one study of 1,864 adults, more than 30% of initially elevated bilirubin, AST, or ALT results returned to normal when repeated an average of 17.5 days later.[17]

The American Academy of Family Physicians recommends evidence-based screening selected around age, medical history, family history, and other individual risks. It recommends against mass or direct-to-consumer screening without supporting evidence.[18]

This is why the best testing membership is partly determined by the doctor outside it. Before joining either platform, ask whether your physician will review externally ordered results, place them in your medical record, and manage any necessary workup.

Patients considering a more comprehensive physician relationship can compare the differences between concierge medicine and direct primary care. NextMD's concierge medicine cost guide explains what the higher membership fee pays for.

Which One Should You Choose?

Choose Function Health if:

• you want two testing rounds included automatically

• seeing changes after three to six months is a priority

• you want Function's imaging and health-data ecosystem

• you already have a physician willing to manage follow-up

• you prefer clinician-reviewed results without a prescription marketplace

Choose Superpower if:

• you want the lowest starting price and live outside New York or New Jersey

• one annual blood draw is enough for your goals

• you value a personalized protocol and on-demand messaging

• you want optional rather than automatic retesting

• you want access to supplements and prescription services in the same platform

Choose neither if:

• you need evaluation for current symptoms

• you expect the membership to provide comprehensive primary care

• your physician already orders the evidence-based tests relevant to you

• broad testing is likely to cause anxiety without changing your decisions

• you have no clinician willing to follow abnormal results

For someone who wants an annual snapshot at the lowest advertised price, Superpower is the better value in most states. For someone who knows they want a second round of testing and values trend tracking, Function is the cleaner package.

The better clinical arrangement is the one that includes a clear handoff to a physician. If neither platform can explain who owns that follow-up, the difference between 100 and 160 annual results matters less.

Five Questions to Ask Before Joining

1. Which exact tests are included for me? Sex, age, location, and testing rules can change the panel.

2. Is a second draw valuable for my goals? Function includes one; Superpower charges extra.

3. Who answers questions about an abnormal result? Clarify the difference between platform support and a treating clinician.

4. What will I probably buy beyond the membership? Include home collection, retesting, imaging, supplements, consultations, and medications.

5. Will my regular doctor accept the results? Ask before purchasing, especially if the answer could lead to repeat testing.

Our guide to choosing a concierge or DPC doctor covers credentials, access, communication, and care coordination. Patients seeking a one-time physician-led assessment can also compare these memberships with an executive physical.

Frequently Asked Questions

Is Superpower cheaper than Function Health?

Yes, in most states. Superpower starts at $199 per year and Function costs $365. Superpower's price varies in New York and New Jersey, where current enrollment pages show $399.[1][5]

Does Function Health test more biomarkers than Superpower?

Function reports more than 160 annual tests, but that number combines 100+ initial tests with a 60+ midyear panel containing repeated measurements. Superpower reports 100+ biomarkers from one annual draw and includes some calculated metrics. The headline totals are not an apples-to-apples count of distinct laboratory assays.[1][2]

Does Superpower include two blood tests per year?

No. The $199 membership includes one annual panel. Members can purchase additional testing. Current Superpower pages show roughly $169 to $179 for a second test, so confirm the amount at checkout.[5][6]

Can either company prescribe medication?

Function does not prescribe. Superpower offers access to prescriptions through third-party providers when medically appropriate, but consultations and medications may cost extra. Superpower's standard platform membership is not itself an ongoing primary-care relationship.[3][4]

Do Function Health or Superpower take insurance?

The standard memberships are sold outside ordinary health-insurance billing. Both discuss possible HSA or FSA use, but members should confirm eligibility with their plan administrator before relying on reimbursement.[1][2]

Do these memberships replace an annual physical?

No. They provide broader laboratory access and health-data tools. They do not replace a complete history, physical examination, routine vaccinations, age-appropriate screening, acute care, or an ongoing physician who can diagnose and treat medical problems.

Find a Doctor Who Can Manage the Follow-Up

A testing dashboard becomes more useful when a physician can connect the results to your history and take responsibility for the next decision.

NextMD helps patients search by city, compare available pricing, and review physician credentials across concierge and direct primary care practices in the United States.

A Note From the Author

I am not a doctor. This article provides general information and does not offer medical advice, diagnosis, or treatment. Product prices and features can change. Confirm current terms with each company and discuss testing decisions with a licensed clinician who knows your history.

Sources

1. Function Health. (2026). Frequently Asked Questions. Review current pricing, testing cadence, coverage, and clinical review

2. Superpower Health. (2026). Superpower membership. Review current pricing and included services

3. Function Health. (2025, November 20). Function membership is now $365/year. Read the current service disclaimer

4. Superpower Health. (2026, March 4). Terms of Service and Membership Agreement. Read the platform's clinical limitations and third-party provider terms

5. Superpower Health. (2026). Baseline Membership. Review current membership details and location-based pricing

6. Superpower Health. (2026, June 18). Superpower vs Function Health. Review Superpower's published comparison and retesting price

7. Function Health. (2026, May 12). Function Acquires SuppCo to Bring Trust and Clarity to Supplements. Read the acquisition announcement

8. OpenAI. (2026, July 23). Launching Health in ChatGPT. Read about the Function Health connection

9. Function Health. (2026). About Function Health. Review the founders and leadership

10. Pande, V., Wolf, D., Cohen, Z., Collins, A., & Kim, B. (2024, June 25). Investing in Function Health. Andreessen Horowitz. Read the founding and early funding history

11. Park, K. (2025, November 19). Function Health raises $298M Series B at $2.5B valuation. TechCrunch. Read the Series B report

12. Dorbian, I. (2026, July 30). Health testing platform Function inks $450m from General Catalyst. PE Hub. Read the financing report

13. Superpower Health. (2026, March 26). Superpower Is Now $199. Read the company's origin story

14. Marchione, M. (2024). Superpower seed announcement. LinkedIn. Read the founder's announcement

15. Superpower Health. (2025). Announcing $30 Million in Series A Funding. Read the funding announcement

16. Wiedermann, C. J., Piccoliori, G., Engl, A., & Hager von Strobele-Prainsack, D. (2026). Predictive Biomarkers for Asymptomatic Adults: Opportunities, Risks, and Guidance for General Practice. Diagnostics, 16(2), 196. Find on PubMed

17. Lazo, M., Selvin, E., & Clark, J. M. (2008). Clinical implications of short-term variability in liver function test results. Annals of Internal Medicine, 148(5), 348-352. Find on PubMed

18. American Academy of Family Physicians. (2019, updated 2023). Screening. Read the AAFP policy