Function Health vs Quest
Quest is cheaper to start ($335 vs $365 per year, lowest published plans). Function Health scores higher overall (9.0 vs 8.3).
By Julian Caraulani · prices checked
Quick verdict
Our pick between the two: Function Health
Function Health scores 9.0/10 against 8.3 for Quest, ahead on price and reputation. Quest can still be the better fit: it is best for people near a Quest center who want Quest's own panels with no membership.
Side by side
| Function Health | Quest | |
|---|---|---|
| Lowest price | $365/yr (yearly membership, auto-renews) | $335/yr (one-off test) |
| Our score | 9.0/10 | 8.3/10 |
| Treatments | Longevity memberships | Lab test orders |
| Medication in price | Not stated | Not stated |
| Drugs dispensed | Not stated | Not stated |
| Labs | Not stated | Not stated |
| Membership | Not stated | Not stated |
| Insurance | No; self-pay | No; self-pay |
| States | 48 states (not RI, HI), per its own site (2026-10-31) | 48 states (not AZ, HI), per its own site (2026-10-31) |
| Cancellation | Cancel and rejoin anytime; no pauses; no refunds for prior payments; auto-renews annually at then-current price. | Cancel online before collection; $20 non-refundable for in-person tests, $45 for home kits; refunds in 7 to 14 business days. |
| FDA warning letters | None found (October 31, 2026) | None found (October 31, 2026) |
| Trustpilot | 4.5/5 (3,102 reviews) | No profile we could quote |
| Best for | People who want the widest yearly panel, retested twice, in one membership. | People near a Quest center who want Quest's own panels with no membership. |
| Prices checked | 2026-10-31 | 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.
Quest: a closer look
Quest's own store: panels and single tests with a $6 physician fee per order. We searched the FDA warning-letter database on October 31, 2026 and found no letter naming Quest.
In its favour
- The lab sells directly, ordered through the PWNHealth network
- Sold in New York and New Jersey
- HSA and FSA accepted
To weigh
- $6 physician service fee on top of every listed price.
- The questhealth.com seller entity is not a HIPAA covered entity.
- No standalone ApoB or estradiol test surfaced in site search; ApoB only inside a $215 panel.
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 priceChoose Quest
Best for people near a Quest center who want Quest's own panels with no membership. Its lowest all-in plan is $335/yr (one-off test).
Check Quest's priceFunction Health vs Quest: questions people ask
Is Function Health or Quest cheaper?
Quest starts lower at $335 per year versus $365 at Function Health, comparing each program's lowest all-in plan.
Which is better, Function Health or Quest?
On our published score Function Health rates 9.0 and Quest rates 8.3. Function Health is best for people who want the widest yearly panel, retested twice, in one membership; Quest is best for people near a Quest center who want Quest's own panels with no membership.
Do Function Health and Quest offer the same treatments?
Function Health: Longevity memberships. Quest: Lab test orders.
Does either include the medication in the price?
Function Health: not stated. Quest: 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.