Is Function Health worth it?
By Elo. Last updated August 2026.
Function Health is worth it if you want a broad baseline from one provider. Function costs $365. Buying equivalent lab products separately costs about $1,114, while the panel's test codes have estimated commercial-insurance allowed amounts of $644–$1,288. Function is more expensive than Empirical Health ($190), Superpower ($199), and Vitals Vault Advanced ($199 one-time).
I previously paid for and used Function Health. The rebuild uses regular August 2026 direct-to-consumer lab prices. The insurance range is a benchmark based on the 2026 Medicare fee schedule and typical commercial multiples, not a personalized coverage estimate. Competing panels differ in biomarkers, retesting, and clinical support.
When is Function Health worth it?
- Function is cheaper for Function-level breadth. A realistic one-lab rebuild costs $1,114 for 105 of Function's 114 distinct markers. Function costs $365 and includes its dashboard and mid-year retest.
- À-la-carte testing is cheaper for a focused question. Mito Health sells 17 of the individually priced Function markers for $147 in one order.
- Function is not the cheapest comprehensive provider. Several competing panels start at $190–$199, although their biomarkers and follow-up services differ.
Function Health's value depends on whether you need the full panel. Someone who wants only six or eight known markers will pay for more than 100 results they did not specifically request.
À-la-carte evidence: labs, coverage, and all-in prices
| Lab | Markers covered | All-in, one order |
|---|---|---|
| Mito Health | 17 of 17 | $147.25 |
| Ulta Lab Tests | 17 of 17 | $489.10 |
| DrSays | 12 of 17 | $168.08 |
| Walk-In Lab | 12 of 17 | $466.00 |
| Marek Diagnostics | 11 of 17 | $352.00 |
| Quest | 7 of 17 | $423.00 |
| Labcorp OnDemand | 2 of 17 | $118.00 |
| Precision Health Reports | 1 of 17 | $24.00 |
| RequestATest | 1 of 17 | $63.00 |
How much would Function Health tests cost through insurance?
Function Health's test codes total $644 at 2026 Medicare Clinical Lab Fee Schedule rates. Applying typical commercial multiples produces an estimated allowed-amount range of $644–$1,288, versus $365 for Function.
The $644–$1,288 insurance range is a benchmark, not a quote. An insured patient's cost depends on negotiated rates, deductible status, medical-necessity rules, and covered tests. Function does not bill insurance, so its advantage is predictable pricing rather than guaranteed savings for every patient.
Insurance evidence: retail prices, CPT codes, and Medicare rates
| Where the retail markup is worst | CPT | Cash retail | Medicare rate |
|---|---|---|---|
| Heavy Metal Testing | 83655, 83825 | $200.00 | $28.37 |
| Methylmalonic Acid (MMA) | 83921 | $80.00 | $21.21 |
| Antinuclear Antibodies (ANA), IFA | 86038, 86039 | $70.00 | $23.25 |
| Anti-Mullerian Hormone (AMH) | 83516 | $55.00 | $11.53 |
| OmegaCheck (omega-3 and omega-6 fractions) | 82542 | $60.00 | $24.09 |
Medicare rates are the 2026 national amounts from the CMS Clinical Lab Fee Schedule (Q3 public-use file). AMH and the omega fatty-acid panel use approximate general-method codes. The separate venipuncture fee is excluded.
Function Health cost per biomarker vs other panels
Function Health costs $3.20 per distinct biomarker: $365 for 114 markers. That ranks 3 of 10 comprehensive panels we track. Empirical Health costs $1.90 per marker, with 100 markers for $190.
| Panel | Price | Markers | Per marker |
|---|---|---|---|
| Empirical Health | $190 | 100 | $1.90 |
| Mito Health (draw fee extra) | $277 | 99 | $2.80 |
| Function Health | $365 | 114 | $3.20 |
| Superpower | $199 | 59 | $3.37 |
| LabCorp OnDemand | $169 | 48 | $3.52 |
| Everlywell | $399 | 86 | $4.64 |
| WHOOP Advanced Labs | $349 | 65 | $5.37 |
| Vitals Vault (one-time, not annual) | $399 | 58 | $6.88 |
| Marek Health | $495 | 56 | $8.84 |
| InsideTracker | $499 | 48 | $10.40 |
Cost per marker is a directional comparison, not a standardized unit price. Providers count results differently. Function lists individual lipid sub-particles that some competitors combine, increasing Function's reported marker count.
How much does it cost to rebuild Function Health's panel?
Rebuilding Function Health's panel requires bundled products such as a metabolic panel, CBC, lipid panel, and urinalysis, not 100 separate orders. I priced the equivalent products from Marek Diagnostics, a direct-to-consumer service using the Quest network. One order includes one $10 collection fee.
A one-lab Function Health rebuild requires 36 products and costs $1,114. It covers 105 of Function's 114 distinct markers and costs 3.1 times the Function membership.
Rebuild evidence: every product and price
| Product | Price | Markers |
|---|---|---|
| Comprehensive Metabolic Panel (CMP) | $9.00 | 17 |
| Complete Blood Count (CBC) with Differential and Platelets | $9.00 | 13 |
| Urinalysis, Routine | $10.00 | 19 |
| Lipid Panel | $9.00 | 6 |
| Thyroid: Free T3 | $20.00 | 1 |
| Thyroid: Free T4 | $13.00 | 1 |
| Thyroglobulin Antibody | $30.00 | 1 |
| PSA, Total + Free + % Free | $30.00 | 3 |
| Antinuclear Antibodies (ANA), IFA | $70.00 | 3 |
| Rheumatoid Factor | $14.00 | 1 |
| Anti-Mullerian Hormone (AMH) | $55.00 | 1 |
| Sex Hormone-Binding Globulin (SHBG) | $25.00 | 1 |
| Follicle-Stimulating Hormone (FSH) | $20.00 | 1 |
| Luteinizing Hormone (LH) | $20.00 | 1 |
| Prolactin | $9.00 | 1 |
| Estradiol | $20.00 | 1 |
| Total + Free Testosterone | $55.00 | 2 |
| OmegaCheck (omega-3 and omega-6 fractions) | $60.00 | 9 |
| Iron Panel (iron, saturation, TIBC, UIBC) | $9.50 | 3 |
| Ferritin | $30.00 | 1 |
| Uric Acid | $6.00 | 1 |
| Magnesium | $13.00 | 1 |
| Zinc, Plasma | $20.00 | 1 |
| Selenium, Blood | $50.00 | 1 |
| Methylmalonic Acid (MMA) | $80.00 | 1 |
| GGT | $7.00 | 1 |
| Amylase | $14.00 | 1 |
| Lipase | $12.00 | 1 |
| Hemoglobin A1c | $9.00 | 1 |
| TSH | $9.00 | 1 |
| Cortisol | $15.00 | 1 |
| DHEA-Sulfate | $20.00 | 1 |
| Vitamin D, 25-Hydroxy | $25.00 | 1 |
| Homocysteine | $35.00 | 1 |
| Lipid Panel Extension (ApoB, Lp(a), hs-CRP) | $71.00 | 3 |
| Heavy Metal Testing | $200.00 | 2 |
| Plus one $10 draw fee | $1113.50 | 105 |
Heavy-metal testing is the rebuild's largest cost: $200.00 for a panel from which Function reports lead and mercury. Excluding it lowers the rebuild to $914, still 2.5 times Function's price. A metabolic panel, CBC, lipid panel, and urinalysis cost only $37 combined and cover 55 markers.
The rebuild does not cover 9 Function markers. Missing results include LDL particle measurements requiring an NMR test and Function's calculated Biological Age. Function includes methylmalonic acid but not direct vitamin B12 or folate tests.
Marek Diagnostics catalog prices were checked in August 2026 using regular prices rather than temporary sales. This is one realistic single-lab rebuild, not the lowest theoretical price across multiple labs.
Who should buy Function Health?
Function Health is worth it for people who want a broad annual panel from one provider. The membership includes 114 distinct markers, a results dashboard, and a focused mid-year retest. Mito Health charges $147 for only the 17 Function markers it sells individually.
Function Health is usually not worth it for someone with a short, targeted test list. A focused heart-risk, thyroid, or iron question may require only a handful of markers available à la carte for less than the $365 membership.
Function Health is also not the lowest-priced broad panel. Empirical Health covers 100 markers for $190. Function Health discount codes can narrow the price difference.