Goodlabs: free blood tests with donation, reviewed

Goodlabs is the only entry on this list with a genuinely different business model: you don't pay for the panel — you donate blood. In exchange, Goodlabs runs 100+ biomarkers on your sample, covering heart, hormones, metabolic, inflammation, iron, kidney, liver, and nutrition. The draw happens at a partner blood center, with results delivered to a Goodlabs dashboard alongside an AI bot that gives citation-backed explanations of each marker.

The pitch is alignment: blood centers are perpetually short on donors, individuals want comprehensive bloodwork, and the same draw can serve both. If you're donor-eligible and willing to donate every 8–12 weeks, this is effectively free comprehensive blood testing.

How Goodlabs works

  • You sign up via Goodlabs and pick a partner blood center.
  • You donate blood at one of their partner sites (or, for some panel options, at Quest or LabCorp).
  • Goodlabs runs the lab panel against your donated sample.
  • Results land in the Goodlabs dashboard with AI-generated explanations.

Goodlabs also sells direct lab tests outside the donation flow for users who aren't eligible to donate or who want specific panels. The donation pathway is the headline offering and what makes Goodlabs distinct.

The founder story

Co-founder Grant started Goodlabs after being diagnosed with genetic hemochromatosis — a condition that requires regular blood draws to manage iron levels. He was paying for blood work he needed for treatment while blood centers were paying for outreach campaigns to recruit donors. Goodlabs is the obvious arbitrage: pair the clinical need with the donor need so a single draw serves both.

The hemochromatosis backstory matters because it's a relatively common genetic condition (1 in 200 in Northern European populations) where therapeutic phlebotomy is the standard of care — Goodlabs effectively turns that treatment into a recurring source of comprehensive bloodwork.

Eligibility caveats

The free panel only works if you're donor-eligible. The disqualifying conditions are largely the same as the Red Cross criteria:

  • Recent travel to certain countries (varies by partner blood center policy)
  • Recent tattoos or piercings (typical 3-month deferral, varies by state)
  • Some chronic conditions and medications
  • Iron levels too low at the donation screening
  • Pregnancy or recent pregnancy

Eligibility specifics vary by partner blood center. Check Goodlabs's eligibility flow for your local center before assuming you qualify.

What gets tested

Goodlabs publishes the included panel by category rather than as a flat marker list. Coverage spans:

  • Heart — lipid panel, advanced cardiac markers
  • Hormones — thyroid, sex hormones, cortisol
  • Metabolic — fasting glucose, HbA1c, insulin
  • Inflammation — hs-CRP and inflammatory markers
  • Iron — ferritin, iron, TIBC, saturation (especially relevant given the founder context)
  • General health — CBC, comprehensive metabolic panel
  • Kidney — creatinine, eGFR, BUN
  • Liver — ALT, AST, ALP, GGT, bilirubin
  • Nutrition — vitamin D, B12, folate

The per-marker list isn't fully enumerated on the public Goodlabs pages — confirm against the dashboard or their tests page before quoting specific numbers.

The bigger context: lab tests without doctors

Goodlabs is part of a broader trend covered recently in STAT News — patients ordering lab tests online without going through their doctor, then arriving at appointments with results their physicians don't know how to act on. Whether you view that as patient empowerment or as a coordination problem is partly a matter of taste, but it's the broader environment Goodlabs is operating in.

Goodlabs vs paid alternatives

  • Cost — free with donation, vs $199–$499 for the major paid services. Hard to argue with on price alone.
  • Cadence — donor eligibility caps you at one draw every 8–12 weeks (whole blood), which is actually more frequent than Function's twice-yearly model.
  • Logistics — partner blood center vs Quest. Some areas have great coverage; others may have a longer drive.
  • Trade-off — you spend ~45 minutes donating blood for the free panel. If your time-cost is high, the "free" price is partly illusory.

Goodlabs alternatives

  • Function Health ($365/year) — paid subscription, 100+ markers twice yearly, no donation required.
  • Superpower ($199/year) — cheapest paid subscription option.
  • Vitals Vault ($99–$399 one-time) — pay-once instead of subscription.
  • WHOOP Advanced Labs ($349/year) — for WHOOP wearable users.
  • InsideTracker ($589+/year) — most established, with personalized action plans.