Blood Test Watchdog

Function Health vs Maximus

Maximus is cheaper to start ($99.99 vs $365 per year, lowest published plans). Function Health scores higher overall (9.0 vs 7.9).

By Julian Caraulani · prices checked

Quick verdict

Our pick between the two: Function Health

Function Health scores 9.0/10 against 7.9 for Maximus, ahead on clinical care, access and reputation. Maximus can still be the better fit: it is best for men already in Maximus care who want its yearly panel.

Side by side

Function HealthMaximus
Lowest price$365/yr (yearly membership, auto-renews)$99.99/yr (one-off kit)
Our score9.0/107.9/10
TreatmentsLongevity membershipsLongevity memberships, Hormone panels
Medication in priceNot statedNot stated
Drugs dispensedNot statedNot stated
LabsNot statedNot stated
MembershipNot statedNot stated
InsuranceNo; self-payNo; self-pay
States48 states (not RI, HI), per its own site (2026-10-31)47 states (not RI, NY, NJ), per its own site (2026-10-31)
CancellationCancel and rejoin anytime; no pauses; no refunds for prior payments; auto-renews annually at then-current price.Annual auto-renewing subscription; add-ons do not renew. Cancellation method not stated on labs page.
FDA warning lettersNone found (October 31, 2026)Letter on record
Trustpilot4.5/5 (3,102 reviews)4.4/5 (1,104 reviews)
Best forPeople who want the widest yearly panel, retested twice, in one membership.Men already in Maximus care who want its yearly panel.
Prices checked2026-10-312026-10-31

Price by treatment

The lowest all-in plan each publishes for the treatments both offer, with the page we read it on.

TreatmentFunction HealthMaximus
Longevity memberships$365/yr (yearly membership, auto-renews) source, 2026-10-31$199.99/yr (yearly, auto-renews) source, 2026-10-31

Function Health: a closer look

Yearly membership: 100+ markers at Quest, a mid-year retest and a clinician summary. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming Function Health.

In its favour

  • Measures ApoB, Lp(a), fasting insulin, omega-3 and heavy metals in the base price
  • Two draws a year included
  • Clinicians review every result

To weigh

  • No refunds for prior payments, and membership auto-renews at the then-current price.
  • '160+ lab tests' counts the mid-year retest; the annual draw is 100+.
  • NY/NJ residents can be billed lab fees on top of the membership, amount not disclosed upfront.
  • Not available in Rhode Island, Hawaii or Puerto Rico.

Maximus: a closer look

Testosterone clinic's yearly lab panels; Optimal and Maximal, with many calculated scores. The FDA has sent Maximus a warning letter: The FDA warned Maximus on June 8, 2026 about false or misleading website claims for compounded semaglutide and tirzepatide. The letter does not concern lab testing.

In its favour

  • Low yearly price for the Optimal panel
  • Includes free testosterone and estradiol
  • At-home testosterone kit with no subscription

To weigh

  • No physician review of comprehensive panel results.
  • Metric counts are padded with calculated ratios; Optimal's ApoB is estimated by formula, not measured.
  • Lab company not named.
  • Renewal wording conflicts between the Maximal card and the FAQ.

Which should you choose?

Choose Function Health

Best for people who want the widest yearly panel, retested twice, in one membership. Its lowest all-in plan is $365/yr (yearly membership, auto-renews).

Check Function Health's price

Choose Maximus

Best for men already in Maximus care who want its yearly panel. Its lowest all-in plan is $99.99/yr (one-off kit).

Check Maximus's price

Function Health vs Maximus: questions people ask

Is Function Health or Maximus cheaper?

Maximus starts lower at $99.99 per year versus $365 at Function Health, comparing each program's lowest all-in plan.

Which is better, Function Health or Maximus?

On our published score Function Health rates 9.0 and Maximus rates 7.9. Function Health is best for people who want the widest yearly panel, retested twice, in one membership; Maximus is best for men already in Maximus care who want its yearly panel.

Do Function Health and Maximus offer the same treatments?

Function Health: Longevity memberships. Maximus: Longevity memberships, Hormone panels.

Does either include the medication in the price?

Function Health: not stated. Maximus: not stated.

Blood Test Watchdog compares testing services. It is not medical advice, does not interpret results and does not publish reference ranges as advice. Talk to a licensed clinician about which tests you need and what your results mean. Partner links may earn us a commission; our score never depends on it. Compare other programs.