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Clinics · Comparison

Function Health vs OneTwenty

Both are primarily bloodwork & longevity providers, so the differences are in consult model, what is bundled, who prescribes, and price.

Function Health logo Function Health From $365/yr Read the Function Health review →
vs
OneTwenty logo OneTwenty From $499/yr membership Read the OneTwenty review →

Side-by-side comparison

Function Health logoFunction HealthOneTwenty logoOneTwenty
Our score9.8 / 109.9 / 10
Starting price$365/yr$499/yr membership
Primary serviceBloodwork & longevityBloodwork & longevity
All servicesBloodworkBloodwork, TRT, GLP-1, Peptides
Consult modelUnconfirmedUnconfirmed
PrescriberUnconfirmedUnconfirmed
LabsIncludedIncluded
InsuranceCash payCash pay
Availability48 states49 states
CancellationSelf-serve onlineSelf-serve online
Trustpilot4.5 / 5 (3,118 reviews)—
Regulatory / legal recordNone foundNone found
Visit ↗Visit ↗

* Provisional score: one or two criteria could not be verified.

Which one is right for you

Choose Function Health if…

Adults who want twice-yearly broad lab testing at a flat cash price and do not need prescribing or treatment from the same service.

  • Core lab panel (160+ tests across two draws per year) included in the $365 annual fee
  • Self-serve cancellation from account settings, documented in the Terms of Service
  • Single published annual price; HSA/FSA eligible

Choose OneTwenty if…

People who want their blood retested every 90 days (a 101-marker baseline plus three follow-up panels a year) and want custom supplements and prescriptions, at published prices, driven by those results in one membership.

  • Four lab panels a year (101-marker baseline plus three 20 to 40 marker follow-ups) are included in the membership price
  • Membership and every available medication have a published monthly price: $499/yr ($749/yr in NY/NJ), medications $49 to $279/mo
  • Lists 49 states (all but Rhode Island)

Price: what you actually pay

Function Health

Pricing page (seen 2026-11-05): '$1/day', 'Charged annually at $365'; includes '160+ lab tests annually' across two draws (100+ tests at the annual visit, 60+ tests 3 to 6 months later), clinician review of every result and a personalized protocol. Footnote: the $365 first-year price applies in all states except New York and New Jersey, where testing costs more (amount not stated). Add-on tests and imaging cost extra; the FAQ lists the Annual MRI at $999 for members. Terms s.13(b)(i): the subscription auto-renews at Function's then-current price.

OneTwenty

Pricing page (seen 2026-11-05; the page says its prices were checked on 2 November 2026): $499 a year, billed annually, for four lab panels: a 101-marker baseline (OneTwenty's own count) plus three follow-up panels of 20 to 40 markers, one every 90 days ('161 to 221 lab results a year'). Walk-in draws at Quest are included; an at-home draw is $99 per draw. NY and NJ: $749 a year because Quest cannot be used there. Add-ons: custom supplement packs from $45/mo; extra lab panels 'at cost' (no prices listed). Medications are priced per product on each treatment page: metformin and sildenafil $49/mo, tadalafil $79/mo, GHK-Cu cream and testosterone cypionate $99/mo, enclomiphene, glutathione (injection or nasal) and oxytocin $129/mo, sermorelin and NAD+ (injection or nasal) $149/mo, compounded semaglutide $179/mo, PT-141 $199/mo, tirzepatide $279/mo or $749 billed quarterly. Whether a separate provider consultation fee applies is not stated. The 'Founding pricing ends at public launch' line seen on 2026-10-17 no longer appears on the homepage or pricing page, but the What We Test page still says 'Now accepting founding members'.

What happens after you sign up

Function Health

Testing and insights only. No prescriptions.

OneTwenty

Treatments offered: Enclomiphene, Compounded semaglutide, Tirzepatide, Sermorelin, Sildenafil, Tadalafil, PT-141 (bremelanotide), Oxytocin nasal spray, Metformin, NAD+ (injection and nasal spray), Glutathione (injection and nasal spray), GHK-Cu cream, Testosterone cypionate.

Cancelling and refunds

Function Health

Terms of Service (last updated 2026-10-07) s.13(b)(ii): cancel before renewal by logging in to my.functionhealth.com, Account Settings, 'Change/Cancel Membership', or by emailing hello@functionhealth.com; cancellation generally takes effect at the end of the billing cycle and access continues until then. s.13(e)(ii): full refund if cancelled within 48 hours of the initial purchase and no specimen has been collected; after that the subscription and all renewals are nonrefundable, with no prorated refund for unused tests. Unused included tests expire at the end of each subscription period (s.13(b)(iii)). FAQ: no pauses; 'Function does not offer refunds for prior payments.'

OneTwenty

Payment and Refund Policy (updated 2026-07-28): cancel via the option in account settings or by emailing support@onetwenty.com. The annual membership renews automatically. A refund is available only within 7 days of purchase and only if no service has started, minus a 3% fee. After that the annual fee is non-refundable, except for a discretionary prorated refund if no lab is reachable. Medication add-ons are non-refundable once prescribed.

Where each is available

Function Health

FAQ: offered at 2,000+ Quest labs across 48 states, 'but not yet Rhode Island, Hawai'i, or Puerto Rico'. Pricing footnote: the $365 first-year price applies 'in all states except New York and New Jersey'; FAQ says testing there 'can cost more due to state regulations' (amount not published). Arizona members need two lab visits for the Annual Test. DC not mentioned.

OneTwenty

Site FAQ: 'available in 49 states except for Rhode Island'; NY and NJ carry a higher fee ($749/yr) because of state lab-draw rules. DC not mentioned.

Full breakdown of each

#1 OneTwenty logo

People who want their blood retested every 90 days (a 101-marker baseline plus three follow-up panels a year) and want custom supplements and prescriptions, at published prices, driven by those results in one membership.

Starting price
$499/yr membership
Consult model
Unconfirmed
Prescriber
Unconfirmed
Labs
Included
Insurance
Cash pay
Availability
49 states
Cancellation
Self-serve online
Founded
Unconfirmed

Pricing

Pricing page (seen 2026-11-05; the page says its prices were checked on 2 November 2026): $499 a year, billed annually, for four lab panels: a 101-marker baseline (OneTwenty's own count) plus three follow-up panels of 20 to 40 markers, one every 90 days ('161 to 221 lab results a year'). Walk-in draws at Quest are included; an at-home draw is $99 per draw. NY and NJ: $749 a year because Quest cannot be used there. Add-ons: custom supplement packs from $45/mo; extra lab panels 'at cost' (no prices listed). Medications are priced per product on each treatment page: metformin and sildenafil $49/mo, tadalafil $79/mo, GHK-Cu cream and testosterone cypionate $99/mo, enclomiphene, glutathione (injection or nasal) and oxytocin $129/mo, sermorelin and NAD+ (injection or nasal) $149/mo, compounded semaglutide $179/mo, PT-141 $199/mo, tirzepatide $279/mo or $749 billed quarterly. Whether a separate provider consultation fee applies is not stated. The 'Founding pricing ends at public launch' line seen on 2026-10-17 no longer appears on the homepage or pricing page, but the What We Test page still says 'Now accepting founding members'.

Prices as listed on November 5, 2026. They change often; confirm at checkout.

What we like

  • Four lab panels a year (101-marker baseline plus three 20 to 40 marker follow-ups) are included in the membership price
  • Membership and every available medication have a published monthly price: $499/yr ($749/yr in NY/NJ), medications $49 to $279/mo
  • Lists 49 states (all but Rhode Island)

Watch out for

  • The annual membership is non-refundable after a 7-day window, and only if no service has started (3% fee applies)
  • Not a medical practice: prescriptions come from unnamed third-party telehealth providers, and the site does not say whether they are physicians or NPs or whether visits are by video
  • Early-stage company: it opened a closed beta of 25 founding members in December 2025 and still advertises founding membership
  • No direct insurance billing (HSA/FSA reimbursement only)
Treatments offered
EnclomipheneCompounded semaglutideTirzepatideSermorelinSildenafilTadalafilPT-141 (bremelanotide)Oxytocin nasal sprayMetforminNAD+ (injection and nasal spray)Glutathione (injection and nasal spray)GHK-Cu creamTestosterone cypionate
Cancelling

Payment and Refund Policy (updated 2026-07-28): cancel via the option in account settings or by emailing support@onetwenty.com. The annual membership renews automatically. A refund is available only within 7 days of purchase and only if no service has started, minus a 3% fee. After that the annual fee is non-refundable, except for a discretionary prorated refund if no lab is reachable. Medication add-ons are non-refundable once prescribed.

Where it is available

Site FAQ: 'available in 49 states except for Rhode Island'; NY and NJ carry a higher fee ($749/yr) because of state lab-draw rules. DC not mentioned.

#2 Function Health logo

Adults who want twice-yearly broad lab testing at a flat cash price and do not need prescribing or treatment from the same service.

Starting price
$365/yr
Consult model
Unconfirmed
Prescriber
Unconfirmed
Labs
Included
Insurance
Cash pay
Availability
48 states
Cancellation
Self-serve online
Founded
Austin, TX

Pricing

Pricing page (seen 2026-11-05): '$1/day', 'Charged annually at $365'; includes '160+ lab tests annually' across two draws (100+ tests at the annual visit, 60+ tests 3 to 6 months later), clinician review of every result and a personalized protocol. Footnote: the $365 first-year price applies in all states except New York and New Jersey, where testing costs more (amount not stated). Add-on tests and imaging cost extra; the FAQ lists the Annual MRI at $999 for members. Terms s.13(b)(i): the subscription auto-renews at Function's then-current price.

Prices as listed on November 5, 2026. They change often; confirm at checkout.

What we like

  • Core lab panel (160+ tests across two draws per year) included in the $365 annual fee
  • Self-serve cancellation from account settings, documented in the Terms of Service
  • Single published annual price; HSA/FSA eligible
  • Draws at 2,000+ Quest locations or an at-home draw option

Watch out for

  • Does not bill insurance and is not enrolled with Medicare or Medicaid
  • Refund only within 48 hours of purchase and before any specimen is collected; renewals are nonrefundable and there is no pause option
  • Not available in Rhode Island or Hawai'i; NY/NJ testing costs more and the amount is not published
  • Company states it does not offer medical advice or treatment; credentials of the clinicians who review results are not disclosed
Cancelling

Terms of Service (last updated 2026-10-07) s.13(b)(ii): cancel before renewal by logging in to my.functionhealth.com, Account Settings, 'Change/Cancel Membership', or by emailing hello@functionhealth.com; cancellation generally takes effect at the end of the billing cycle and access continues until then. s.13(e)(ii): full refund if cancelled within 48 hours of the initial purchase and no specimen has been collected; after that the subscription and all renewals are nonrefundable, with no prorated refund for unused tests. Unused included tests expire at the end of each subscription period (s.13(b)(iii)). FAQ: no pauses; 'Function does not offer refunds for prior payments.'

Where it is available

FAQ: offered at 2,000+ Quest labs across 48 states, 'but not yet Rhode Island, Hawai'i, or Puerto Rico'. Pricing footnote: the $365 first-year price applies 'in all states except New York and New Jersey'; FAQ says testing there 'can cost more due to state regulations' (amount not published). Arizona members need two lab visits for the Annual Test. DC not mentioned.

Function Health vs OneTwenty: common questions

Is Function Health or OneTwenty better?

OneTwenty ranks higher on our rubric (9.9 vs 9.8 out of 10; * means provisional, and fully verified scores rank first). That reflects price transparency, labs, availability, cancellation terms and treatment range, not clinical outcomes. OneTwenty: People who want their blood retested every 90 days (a 101-marker baseline plus three follow-up panels a year) and want custom supplements and prescriptions, at published prices, driven by those results in one membership. Function Health: Adults who want twice-yearly broad lab testing at a flat cash price and do not need prescribing or treatment from the same service.

Which is cheaper, Function Health or OneTwenty?

Function Health starts at $365/yr (labs included; more in NY/NJ). OneTwenty starts at $499/yr membership ($749/yr in NY/NJ); medications $49 to $279/mo extra. Compare what each price includes, especially labs and medication.

Do Function Health and OneTwenty include lab work?

Function Health: included. OneTwenty: included.

Which is easier to cancel?

Function Health: Terms of Service (last updated 2026-10-07) s.13(b)(ii): cancel before renewal by logging in to my.functionhealth.com, Account Settings, 'Change/Cancel Membership', or by emailing hello@functionhealth.com; cancellation generally takes effect at the end of the billing cycle and access continues until then. s.13(e)(ii): full refund if cancelled within 48 hours of the initial purchase and no specimen has been collected; after that the subscription and all renewals are nonrefundable, with no prorated refund for unused tests. Unused included tests expire at the end of each subscription period (s.13(b)(iii)). FAQ: no pauses; 'Function does not offer refunds for prior payments.' OneTwenty: Payment and Refund Policy (updated 2026-07-28): cancel via the option in account settings or by emailing support@onetwenty.com. The annual membership renews automatically. A refund is available only within 7 days of purchase and only if no service has started, minus a 3% fee. After that the annual fee is non-refundable, except for a discretionary prorated refund if no lab is reachable. Medication add-ons are non-refundable once prescribed.

Can Function Health or OneTwenty prescribe treatment?

Function Health: no, testing and insights only. OneTwenty: yes (Enclomiphene, Compounded semaglutide, Tirzepatide, Sermorelin).

Which is available in more states?

Function Health: 48 states. OneTwenty: 49 states.

Sources

Regulatory and primary sources

  1. Function Health: Function Health pricing (seen 2026-11-05) ↗
  2. Function Health: Function Health FAQ ↗
  3. Function Health: Function Health Terms of Service (last updated 2026-10-07) ↗
  4. Function Health: Function Health homepage ↗
  5. Function Health: Function Health - Wikipedia ↗
  6. Function Health: Function Health on Trustpilot (read 2026-11-05) ↗
  7. Function Health: Function Health sues Superpower Health (JD Supra; search snippet) ↗
  8. Function Health: Function sues Superpower (Athletech News, 2026-02-05) ↗
  9. OneTwenty: OneTwenty homepage and FAQ ↗
  10. OneTwenty: OneTwenty Pricing (prices checked by the company 2026-11-02; seen 2026-11-05) ↗
  11. OneTwenty: OneTwenty Payment and Refund Policy (updated July 28, 2026) ↗
  12. OneTwenty: OneTwenty Longevity Treatments ↗
  13. OneTwenty: OneTwenty Tirzepatide ($279/mo or $749 quarterly) ↗
  14. OneTwenty: OneTwenty Testosterone Cypionate ($99/mo) ↗
  15. OneTwenty: OneTwenty BPC-157 (coming soon) ↗
  16. OneTwenty: OneTwenty What We Test (101-marker baseline; 'Now accepting founding members') ↗
  17. OneTwenty: OneTwenty Press (closed beta announcements) ↗
  18. OneTwenty: OneTwenty Terms of Service (effective August 27, 2026) ↗
  19. OneTwenty: OneTwenty Privacy Policy (effective August 27, 2026) ↗
  20. OneTwenty: Upwork: Physician Advisor (MD/DO), Preventive & Longevity Medicine (search snippet; page returned 403) ↗
  21. OneTwenty: AJMC: 5 things to know about HHS's interim peptide compounding policy (2026-10-29) ↗
  22. OneTwenty: Trustpilot (404, no profile; rechecked 2026-11-05) ↗
  23. Lindy Health clinic scoring rubric ↗