HOW WE COMPARE · FUNCTION HEALTH
Compare Function Health with Helvy on the things that matter for your choice: the markers included, how you collect your sample, what you pay and the report you receive.
ONE-OFF TESTS
01Helvy offers 6 tests at £99 to £129. No subscription is required.
YOUR REPORT
02Each marker, its range and a clear explanation in your Helvy account. An example report is available before you order.
LABORATORY ANALYSIS
03UKAS-accredited UK laboratories. Results usually within 5 working days of the lab receiving your sample.
POSITIONING
Function Health launched in the US in 2023 with a clear thesis: comprehensive blood testing should be a subscription, not a one-off. The flagship is 160+ lab tests a year, a 100+ marker first panel plus a six-month re-test, at $365 a year. That $365 covers renewals as well as the first year; Function lowered the price from $499 in November 2025 and says the new figure applies whether you are joining, renewing or gifting. The product is positioned for the wellness optimiser who wants the widest marker spread for a flat annual fee. The headline claim is breadth.
Function Health Ltd was incorporated in the UK on 2025-11-12 (Companies House number 16849907), so a UK launch is plainly intended. On our last check, 31 July 2026, we could not find a UK ordering route or a public UK launch announcement, and Function's own site blocks the automated checks we use, so treat this as our reading on that date rather than a statement from the company. The US product is the comparison anchor. If you are reading this after a UK launch, check their site for the UK price before you use ours.
Helvy offers 6 fixed blood tests at one-off prices of £99 to £129. Choose a test by the markers you want to understand. Find my test helps you narrow the existing catalogue; it does not build a custom panel.
FUNCTION HEALTH
$365
ANNUAL MEMBERSHIP · US · AS ADVERTISED, CHECKED 2026-07-31
HELVY
£99
ENTRY PANEL · WOMEN'S HORMONES
Side by side
Each row reflects the most representative offering from each provider as advertised on their public site at the verification date below.
| Dimension | Helvy | Function Health |
|---|---|---|
| Anchor price | From £99 per panel | $365 a year, renewals included (US) |
| Geography | UK only | US. No UK route found 31 Jul 2026 |
| Biomarker count (broadest panel) | 17 (Energy and Wellness) | 100+ |
| Interpretation | Each marker, range and explanation | Reference-range flags |
| Lab accreditation | UKAS ISO 15189 | US CLIA |
| Results timeframe | usually within 5 working days of the lab receiving your sample | 1-2 weeks |
| Subscription required | One-off; no subscription required | Yes, annual |
| Re-test cadence | Whenever you choose | 6 months included |
| Methodology transparency | Optimal ranges published, with sources | Not published |
HELVY DIFFERENTIATORS
THE LONG VERSION
Function Health's product loop is built around comprehensive measurement. The customer pays $365 a year, the kit arrives, the venous draw happens at a partner lab, the results come back in one to two weeks as a large dashboard. Markers are flagged against reference ranges with brief commentary on each. Six months later the re-test happens at no extra charge. The thesis is that the customer pulls value from the data themselves: they look at the dashboard, they ask their physician, they decide what to do. Function Health is the comprehensive substrate; the action sits with the customer.
Helvy offers 6 fixed blood tests at one-off prices of £99 to £129. Choose a test by the markers you want to understand. Find my test helps you narrow the existing catalogue; it does not build a custom panel.
Each test includes a finger-prick collection kit, prepaid return, laboratory analysis and results in your Helvy account. The report shows each marker, its range and an explanation of what it reflects. Explore the example report before you choose.
If you want the broad first look, that is Energy and Wellness at 17 markers, £129. If you are not sure which panel answers your question, Find my test.
WHEN FUNCTION HEALTH IS THE RIGHT CHOICE
Function Health is built for the US wellness optimiser who wants the widest possible biomarker spread for an annual flat fee, who is happy to interpret the data themselves, and who already has supplements handled elsewhere. The 100+ marker number is real. The six-month re-test cadence is included. At $365 a year with renewals at the same price, the membership is fair value if you would otherwise pay per panel more than once a year.
If your starting question is "can I get the widest possible biomarker spread for the lowest per-marker dollar", Function Health answers yes. If you already work with a physician or a longevity practitioner who turns the data into a protocol, Function Health is the data substrate and the practitioner is the routing. That stack works.
FUNCTION HEALTH STRENGTHS
Honest framing of where Function Health is the better fit. Helvy is not always the right choice; the comparison should answer that honestly.
HELVY STRENGTHS
Explore the markers, the collection kit and the report before choosing a test.
WHEN HELVY IS THE RIGHT CHOICE
The Helvy catalogue includes Women's Hormones, Complete Male Hormones, Energy and Wellness, Advanced Heart Health, Thyroid, Liver & Kidney and Vitamin & Mineral Check. Each has a fixed marker list and one-off price, so you can see what you are buying before you choose.
Find my test gives you a starting recommendation. On each test page you can check who it is for, open every marker explanation and explore the report. Your kit, analysis and report are included; you decide if and when to test again.
Made up your mind?
If a Helvy home test answers your question alongside Function Health, order your panel today, or leave your email for the occasional guide.
Frequently asked
Order a panel
from £99
6 ONE-OFF TESTS · UKAS UK LABS
The Women's Hormones panel is the entry point at £99. Energy and Wellness at £129 is the broadest baseline if you do not know which to pick. You decide if and when to test again.
FURTHER READING
WHERE THESE FUNCTION HEALTH FIGURES COME FROM
COMPARISON VERIFIED 2026-07-31 · COMPETITOR PRICES AND POSITIONING MAY CHANGE.
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