Blood Test Watchdog

Function Health vs Request A Test

Request A Test is cheaper to start ($203 vs $365 per year, lowest published plans). Function Health scores higher overall (9.0 vs 7.7).

By Julian Caraulani · prices checked

Quick verdict

Our pick between the two: Function Health

Function Health scores 9.0/10 against 7.7 for Request A Test, ahead on price, price transparency, access and reputation. Request A Test can still be the better fit: it is best for people who compare Labcorp and Quest prices test by test.

Side by side

Function HealthRequest A Test
Lowest price$365/yr (yearly membership, auto-renews)$203/yr (one-off panel)
Our score9.0/107.7/10
TreatmentsLongevity membershipsLab test orders
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)46 states (not NY, NJ, RI, AZ), 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.Orders valid 12 months; cancel within 90 days if not redeemed, less the $4 service fee.
FDA warning lettersNone found (October 31, 2026)None found (October 31, 2026)
Trustpilot4.5/5 (3,102 reviews)3.8/5 (2 reviews)
Best forPeople who want the widest yearly panel, retested twice, in one membership.People who compare Labcorp and Quest prices test by test.
Prices checked2026-10-312026-10-31

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.

Request A Test: a closer look

Test store priced by lab (Labcorp or Quest), with physician review and a $4 order fee. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming Request A Test.

In its favour

  • Shows a Labcorp and a Quest price for each test
  • Physician licensed in your state reviews results
  • Orders valid for 12 months

To weigh

  • $4 per order service fee, non-refundable.
  • Prices differ by lab; the same test can cost more at Quest than Labcorp (or vice versa).
  • Results cannot be emailed; portal download or mail/fax only.

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 Request A Test

Best for people who compare Labcorp and Quest prices test by test. Its lowest all-in plan is $203/yr (one-off panel).

Check Request A Test's price

Function Health vs Request A Test: questions people ask

Is Function Health or Request A Test cheaper?

Request A Test starts lower at $203 per year versus $365 at Function Health, comparing each program's lowest all-in plan.

Which is better, Function Health or Request A Test?

On our published score Function Health rates 9.0 and Request A Test rates 7.7. Function Health is best for people who want the widest yearly panel, retested twice, in one membership; Request A Test is best for people who compare Labcorp and Quest prices test by test.

Do Function Health and Request A Test offer the same treatments?

Function Health: Longevity memberships. Request A Test: Lab test orders.

Does either include the medication in the price?

Function Health: not stated. Request A Test: 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.