Vetted Providers
Independently scored on a six-dimension public rubric. Transparent affiliate disclosure, never pay-to-rank.
Read the Lab testing guide
Editorial picks, the criteria that matter, FAQ specific to this category.
3 providers in Lab testing
Function Health
Comprehensive lab-testing membership with MD review of every biomarker
Function Health is our top pick in DTC lab-testing-for-longevity. The $365/year price is genuinely competitive for two annual full panels with MD review of every biomarker, the panel breadth is among the largest in the category (160+ tests, 100+ biomarkers per draw), and Mark Hyman as clinical face plus the recent $298M raise at $2.5B valuation provide unusual operational depth for a DTC lab service. Counterweights are real but manageable: BBB NOT Accredited, recurring complaints about customer-support response time and unclear add-on pricing. For most readers wanting comprehensive lab-testing context for longevity decisions, this is the default recommendation.
$365/year (~$30/month) for two semi-annual full panels
No financial relationshipInsideTracker
Established blood-and-DNA biomarker testing with the strongest customer-service signal in our cohort
InsideTracker is a credible alternative to Function Health for DTC biomarker testing, with three differentiators that matter: a 15-year track record (founded circa 2009), peer-reviewed methodology research published in PubMed Central, and the strongest customer-service responsiveness signal in our lab-testing cohort (94% reply rate to negative Trustpilot reviews within one week). The honest counterweight: Function Health is meaningfully cheaper on a panel-per-dollar basis ($365/year for 100+ markers per draw twice a year vs InsideTracker's roughly $489-$829/year for 1-2 Ultimate tests at 54 markers each). Choose InsideTracker if you want the DNA add-on, smaller targeted panels, or the company's longer track record and customer-service responsiveness; choose Function for the broadest panel at the lowest annual cost.
$149/yr membership + $99-$589 per test (member discounts apply)
No financial relationshipTally Health
Epigenetic biological age testing with David Sinclair as scientific founder
Tally Health is a credible biological-age testing service for users specifically interested in the epigenetic age question, with David Sinclair's name behind the methodology and a transparent membership pricing model. The honest counterweights are real: small Trustpilot sample (only 37 reviews, 3.6/5), recurring complaints about result-delivery delays running 9+ weeks vs the advertised 2-4, and the recent April 2026 acquisition by Infinite Epigenetics adding operational uncertainty. For most users wanting longevity-context lab data, Function Health's broader panel at comparable price is the better default; Tally only makes sense if you specifically want the epigenetic age metric.
$129-$159/mo membership; $249 standalone TallyAge test
No financial relationshipRefresh cadence
Quarterly public-record checks (state licenses, FDA warning letters, accreditation status), annual full-questionnaire reviews, and immediate re-scoring on any major event. Each provider profile shows a last verified date.
How we vet, in 30 seconds
Every provider above is scored on six dimensions. Public weights, public rationale, never pay-to-rank.
What we verify
- ·State pharmacy & clinic licenses
- ·FDA warning-letter database
- ·Accreditations (PCAB, LegitScript, USP <797>)
- ·Recall history + complaint patterns
The six dimensions
- ·Licensure (20%)
- ·Accreditation (20%)
- ·Transparency (20%)
- ·Product quality (15%)
- ·Pricing (15%)
- ·Customer service (10%)
What we disclose
- ·Every affiliate relationship per listing
- ·Weighting math behind every score
- ·Source URLs for every verification
- ·When something is stated but unverified
Head-to-head comparisons
Stuck between two? We pick a winner per use case so you can scan to the row that matches how you'd actually use the platform.
Defy Medical vs Marek Health
Independent head-to-head: Defy Medical vs Marek Health for testosterone replacement therapy. 16-year MD/DO clinic with premium pricing vs newer coaching-plus-prescribing model with monthly check-ins.
See verdictDefy Medical vs Maximus
Independent head-to-head: Defy Medical vs Maximus for testosterone replacement. 16-year MD/DO clinic with protocol customization vs novel oral testosterone + enclomiphene with a published clinical study but BBB F rating.
See verdictEden vs Henry Meds
Independent head-to-head: Eden vs Henry Meds for compounded GLP-1 weight loss. Vertically-integrated specialist with the cohort's cleanest privacy-counterweight tradeoff vs the cohort-cheapest provider with the cohort-worst trust signals.
See verdictFrequently asked
About this directory, the rubric, and how we make money.
What does "vetted" mean here?
Each provider in this directory is independently scored on a public six-dimension rubric: licensure, accreditation, transparency, product quality, pricing, and customer service. We verify state pharmacy licenses against state board registries, FDA enforcement actions against the FDA warning-letter database, and accreditations against the relevant public registry where one exists. Every score has a one-line rationale and (where possible) a source link on the provider profile. The full methodology is at /methodology/provider-vetting.
Do you accept money from the providers you list?
Some providers in this directory have an affiliate relationship with us. When a reader clicks through and books a consultation, we may earn a per-click or per-qualified-consult fee. Inclusion in the directory is independent of whether a provider pays us. The rubric and ranking are not affected by who pays. Affiliate relationships are disclosed on every listing card with a "We earn a fee" pill, and the methodology page lists every compensation type we accept (per-click and per-qualified-consult only, never per-prescription).
Are compounded GLP-1 medications legal?
Yes, when prescribed by a licensed clinician and prepared by a state-licensed compounding pharmacy. Compounded versions are not FDA-approved (unlike brand-name Wegovy, Ozempic, Mounjaro, or Zepbound), but they are legally prepared at 503A pharmacies under individual prescriptions or at 503B FDA-registered outsourcing facilities. The legal landscape has evolved through 2025-2026; many telehealth providers offer both compounded and brand-name options. The FDA has not yet acted on most compounded telehealth platforms, but Eli Lilly and Novo Nordisk have filed lawsuits against several compounders over advertising claims.
How do you choose which providers to evaluate?
We start with the highest-trafficked telehealth platforms in each category (compounded GLP-1, brand-name GLP-1, longevity clinics, peptide compounding) and work down. Reader suggestions are prioritized in the next review cycle, email us via /contact with a name and a link.
Why is one provider ranked higher than another?
Because their weighted rubric score is higher. The score combines six dimensions with public weights: licensure (20%), accreditation (20%), transparency (20%), product quality (15%), pricing (15%), and customer service (10%). Each provider profile breaks down their score per dimension with a rationale, so you can see exactly which dimensions drove the ranking and disagree with specific scores if you want.
How often do you update this directory?
Public-record checks (state license, accreditation status, FDA warning letters) every quarter. The full Tier-3 questionnaire annually for active providers, and immediately whenever a major event happens (recall, regulatory action, ownership change, lawsuit). Each provider profile shows a "last verified" date so you can see how fresh the information is.
I had a bad experience with a provider you listed. What now?
Email us at /contact with details. If it's a one-off we note it and watch for patterns. If it's representative of broader issues, the listing comes down or gets re-scored. We'd rather de-list a provider than defend one we shouldn't have listed.
What if I have commercial insurance, should I still use these providers?
It depends. Compounded GLP-1 medications aren't covered by insurance regardless of provider, the cash-pay model is the model. If you have insurance that covers brand-name Wegovy, Ozempic, or Zepbound, providers with insurance concierge support (like Ro) become much more attractive because your effective monthly cost can drop to $0–$25 with savings cards and prior authorization. We try to flag these tradeoffs in each provider's "Best for / Look elsewhere if" section.
Have a question we didn't answer, or a provider you think we should evaluate?
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