Goodlabs: free blood tests with donation, reviewed

Goodlabs review: Goodlabs gives you a 100+ biomarker blood panel for free in exchange for donating blood, rather than charging an annual subscription. The draw happens at a partner blood center, and Goodlabs runs the panel on your donated sample, covering heart, hormones, metabolic, inflammation, iron, kidney, liver, and nutrition. If you're donor-eligible, it's the cheapest comprehensive testing on this list. If you're not, the paid alternatives below make more sense.

I evaluated Goodlabs in detail, reviewing their published model, eligibility rules, and panel categories against the paid services I've personally tested (Function Health, Quest, and Empirical Health). Results are 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 willing to donate every 8 weeks (the standard whole-blood interval is 56 days), this is effectively free comprehensive blood testing.

Below I cover how Goodlabs works, the founder story, eligibility caveats, what gets tested, the broader context of lab tests ordered without doctors, and how Goodlabs compares to paid alternatives like Function Health and Superpower.

I haven't donated through Goodlabs myself, so I won't pretend to have run the flow end to end. Based on their published materials, my read is that the model is genuinely clever and the panel is real clinical-grade bloodwork, drawn at a partner blood center and run by a certified lab, not a stripped-down freebie. Goodlabs says results land in 4 to 6 business days with explanations from an AI assistant they call Barry (per the Goodlabs help center). My main caution: this is an early program, so partner-center coverage is still thin and the experience varies a lot by location. If you live near a participating center and you're donor-eligible, the value is hard to beat. If not, the paid services below are the practical choice.

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 Goodlabs 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.

Goodlabs eligibility

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

Goodlabs says deferrals are "quite rare," and the fastest way to know is to run their signup questionnaire. The baseline requirements they publish: you must be at least 16 (parental consent under 18 in some states), weigh at least 110 pounds, and pass a hemoglobin check (12.5 g/dL for women, 13.0 g/dL for men) at screening. You can't donate if you've ever tested positive for HIV or hepatitis B or C, and you're eligible six weeks after delivery. Whole-blood donors can give every 56 days. Specifics still vary by partner blood center, so check Goodlabs's flow for your local center before assuming you qualify.

What Goodlabs tests

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

Goodlabs goes beyond a basic lipid panel to include advanced cardiac markers like ApoB and Lp(a), per its site. It doesn't publish a flat, fully enumerated marker list on its public pages, so confirm the exact panel for your center in the booking flow before quoting specific markers.

Ordering lab tests without a doctor

Goodlabs is part of a broader trend covered recently in STAT News about 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.