Helvy
HOW WE COMPARE · FUNCTION HEALTH
Function Health sells a US membership at $365 a year, first year and renewals alike, covering 160+ lab tests (as advertised, checked 2026-07-31). Helvy sells a curated UK panel set from £99, one panel at a time, with every marker read against published optimal ranges. Different shapes, different jobs.
UK vs US
01Helvy uses UKAS-accredited UK laboratories to ISO 15189. Function Health uses US laboratories under CLIA accreditation.
WHAT HAPPENS NEXT
02Helvy reads every marker against published optimal ranges and ends in a clear next step. Function Health gives you the numbers and leaves the next step to you.
PURCHASE MODEL
03Helvy is panel-per-panel, £99 to £159, buy one and stop if you want to. Function Health requires an annual membership.
AVAILABILITY
04Helvy ships to UK addresses today. On our last check (31 July 2026) we could not find a UK ordering route for Function Health.
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 takes a different shape. The Helvy thesis is that the value of biomarker testing is not in counting markers but in producing something you can act on. The output is a read of every marker with a clear next step. The panel set is curated to 6: Hormone Balance, Complete Male Hormones, General Energy & Wellness, Advanced Heart Health, Thyroid & Vital Organs and Vitamins & Minerals, each built to answer one question well. Marker counts run 5 to 17 per panel, and General Energy & Wellness at 17 markers is the broadest single baseline.
The mental model difference matters more than the numbers. Function Health sells comprehensive data. Helvy sells a read of it. If your starting question is "how many biomarkers can I get for the lowest dollar," Function Health is built for that question. If your starting question is "what should I actually do about my results," Helvy is built for that question.
FUNCTION HEALTH
$365
ANNUAL MEMBERSHIP · US · AS ADVERTISED, CHECKED 2026-07-31
HELVY
£99
ENTRY PANEL · HORMONE BALANCE
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 (General Energy & Wellness) | 100+ |
| Interpretation | Every marker, vs optimal ranges | Reference-range flags |
| Optional supplement plan | In build, not open yet | Not included |
| Lab accreditation | UKAS ISO 15189 | US CLIA |
| Results timeframe | 5 days | 1-2 weeks |
| Subscription required | No | 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's product loop starts the same way and ends differently. A finger-prick at home (no clinic visit), posted back the same day, lab work at a UKAS-accredited UK laboratory to ISO 15189. Results in your inbox in about five working days. The results page leads with what needs attention and expands into every individual biomarker with optimal-range commentary. The action sits in the product rather than in a dashboard you have to interpret.
The biomarker counts make the difference look starker than it is. Function Health's 100+ marker number is real but front-loaded with markers whose marginal predictive value is small once you have the first 30 to 40 if they are chosen well. Helvy's General Energy & Wellness panel covers 17 biomarkers and the Advanced Heart Health profile adds 10 more, including the markers your NHS GP usually leaves out (ApoB, Lp(a), hs-CRP, HbA1c). The Helvy report turns those into a clear next step. The output is a different shape, not a different quality.
The geographic constraint is the practical one. Function Health is a US product and we could not find a UK ordering route on 31 July 2026. Helvy is a UK product. If you want a UK home blood test now, with results posted to a UK address from a UK lab, read against UK reference ranges, under UK data protection (UK GDPR and the Data Protection Act 2018), that is the gap this page exists to answer. If and when Function Health opens in the UK the comparison gets easier to make: probably a different price point, possibly a different marker count, and on their US precedent, still a membership.
The transparency layer is the third major difference. Helvy publishes the optimal ranges it reads against and the evidence behind them (NICE CG181 and JBS3 for cardiovascular thresholds; Endocrine Society guidance for thyroid and hormones), with sources per marker. Function Health does not publish their methodology in the same shape. The customer can see the raw numbers but not the algorithm that converts them into a wellness output. This is a deliberate Function Health choice and a deliberate Helvy choice.
Finally, supplements. Neither product sells them today. Helvy has an optional monthly plan in build, chosen by you from a short, fixed list, and it is not open yet, so it is not a reason to pick Helvy over Function Health this week. Customers of both source their own or work with a separate practitioner.
If you want the broad first look, that is General Energy & Wellness at 17 markers, £149. If you are not sure which panel answers your question, three questions will route you.
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.
Helvy is not the right choice if you live in the US (we do not ship to US addresses), if you want the widest possible marker count above all other criteria, or if you already have a supplement routine you are happy with and you only want the underlying data feed.
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
Where the Helvy programme, with its curated panel set and optional supplement plan, is the right shape for the purchasing question.
WHEN HELVY IS THE RIGHT CHOICE
Helvy is built for the UK customer who wants a finger-prick at home, a result usually within five working days with every marker explained, and a clear next step. The marker set is curated to what the longevity literature treats as predictive; the panel choice is curated to 6 concrete routes (Hormone Balance, Complete Male Hormones, General Energy & Wellness, Advanced Heart Health, Thyroid & Vital Organs and Vitamins & Minerals).
The read is the wedge. Most UK testing products end at a PDF of numbers. Helvy ends at a plain-language read of every marker against ranges we publish, with the sources behind them. The supplement plan is in build and is not part of what you buy today, so judge Helvy on the read.
Helvy is the curated UK option. Function Health is the comprehensive US option. They are different products, designed for different purchasing decisions. The comparison is not better-or-worse; it is which-shape-fits.
Made up your mind?
If the routed report and the supplement plan are the shape you want over Function Health, order your panel today, or leave your email for the occasional guide.
Frequently asked
Order a panel
from £99
6 PANELS · FIVE DAYS · UKAS UK LABS
The Hormone Balance panel is the entry point at £99. General Energy & Wellness at £149 is the broadest baseline if you do not know which to pick. Retest whenever you want to see what moved.
FURTHER READING
WHERE THESE FUNCTION HEALTH FIGURES COME FROM
COMPARISON VERIFIED 2026-07-31 · COMPETITOR PRICES AND POSITIONING MAY CHANGE.
Your next step