Function Health vs Healthspan

Complete Head-to-Head Comparison

Compare costs, biomarker coverage, and value to find the best blood testing service for your needs

Function Health
Healthspan
✓ Independent Analysis✓ Prices verified Aug 2026✓ Complete Biomarker Coverage

Quick Comparison Summary

Best Value
Function Health
43.8 biomarkers per $100
Most Comprehensive
Function Health
160+ biomarkers tested
Most Tests Per Year
Tie
2 tests/year each

Cost & Value Comparison

Service Details

FeatureFunction HealthHealthspan
Lab Locations2000+ QuestCLIA-certified labs
Key FeaturesCancer markers, autoimmune panel (ANA), advanced lipids (ApoB), heavy metals (lead), Omega-3, clinician reviewBiological age calculation, rapamycin/acarbose/metformin protocols, GLP-1 protocols, longevity-focused panels
Notes$365/year, single membership tier (reduced from $499; Function announced the $365 price directly). 160+ lab tests 2x/year plus on-demand testing. GRAIL cancer screening, MRI/CT scans, Alzheimer's testing, mold reactivity as add-ons. HSA/FSA eligible.Model changed from a standalone $349 panel to a $99/month Longevity Optimization membership; the $1,188 shown is that rate annualized, not a figure Healthspan advertises. Core tier includes labs at baseline and 6 months (2/yr) tracking 70+ biomarkers across 9 biological systems; the Advanced tier runs labs quarterly but its price is not published. Includes BioAge+ biological age testing, 1:1 PhD-level coaching and clinician access. Treatment protocols priced separately ($25-$135/mo). Standalone panel pricing is no longer published publicly. Not to be confused with the unrelated myhealthspan.com.

Biomarker Coverage Comparison

69
Tests in Common
36
Only in Function Health
0
Only in Healthspan

Tests Only in Function Health

24 more
Full biomarker tableall 105 markers, side by side

Filter by Category

BiomarkerFunction HealthHealthspan
Complete Blood Count (CBC)
Hemoglobin✓✓
Hematocrit✓✓
Red Blood Cell Count (RBC)✓✓
White Blood Cell Count (WBC)✓✓
Platelet Count✓✓
MCV, MCH, MCHC✓✓
RDW (Red Cell Distribution Width)✓✓
Mean Platelet Volume (MPV)✓—
Immature Granulocytes✓—
Neutrophils✓✓
Lymphocytes✓✓
Monocytes✓✓
Eosinophils✓✓
Basophils✓✓
Lipid Panel / Cardiovascular Health
Total Cholesterol✓✓
LDL Cholesterol✓✓
HDL Cholesterol✓✓
Triglycerides✓✓
VLDL Cholesterol✓✓
Apolipoprotein B (ApoB)✓✓
Lipoprotein (a)✓✓
LDL Particle Number✓✓
LDL Particle Size✓✓
Oxidized LDL (OxLDL)✓—
Apolipoprotein A1 (ApoA1)✓—
Metabolic Health / Glucose
Fasting Glucose✓✓
Hemoglobin A1c (HbA1c)✓✓
Insulin✓✓
Uric Acid✓✓
C-Peptide✓—
Liver Function
ALT (Alanine Aminotransferase)✓✓
AST (Aspartate Aminotransferase)✓✓
ALP (Alkaline Phosphatase)✓✓
GGT (Gamma-Glutamyl Transferase)✓✓
Bilirubin (Total)✓✓
Albumin✓✓
Total Protein✓✓
Globulin✓✓
Lipase✓—
Kidney Function
Creatinine✓✓
BUN (Blood Urea Nitrogen)✓✓
eGFR (Estimated Glomerular Filtration Rate)✓✓
BUN/Creatinine Ratio✓✓
Cystatin C✓—
Electrolytes & Minerals
Sodium✓✓
Potassium✓✓
Chloride✓✓
Carbon Dioxide (CO2)✓✓
Calcium✓✓
Magnesium✓—
Zinc✓—
Copper✓—
PTH (Parathyroid Hormone)✓—
Thyroid Function
TSH (Thyroid Stimulating Hormone)✓✓
Free T4 (Thyroxine)✓✓
Free T3 (Triiodothyronine)✓✓
TPO Antibodies (Thyroid Peroxidase)✓—
Thyroglobulin Antibodies✓—
Iodine✓—
Selenium✓—
Reverse T3✓—
Sex Hormones (Male)
Total Testosterone✓✓
Free Testosterone✓✓
SHBG (Sex Hormone Binding Globulin)✓✓
PSA (Prostate Specific Antigen)✓✓
DHEA-S✓✓
Pregnenolone✓—
Sex Hormones (Female)
Estradiol (E2)✓✓
Progesterone✓✓
FSH (Follicle Stimulating Hormone)✓✓
LH (Luteinizing Hormone)✓✓
Prolactin✓✓
AMH (Anti-Mullerian Hormone)✓✓
Inflammation & Immune Markers
hs-CRP (High Sensitivity C-Reactive Protein)✓✓
ESR (Erythrocyte Sedimentation Rate)✓✓
Homocysteine✓✓
Fibrinogen✓—
Vitamins & Nutrients
Vitamin D (25-Hydroxy)✓✓
Vitamin B12✓—
Folate✓—
Ferritin✓✓
Iron (Serum)✓✓
TIBC (Total Iron Binding Capacity)✓✓
Stress & Adrenal Function
Cortisol✓✓
Advanced / Specialty Markers
Omega-3 Index / Fatty Acids✓—
Heavy Metals - Lead✓—
Heavy Metals - Mercury✓—
Creatine Kinase✓—
IGF-1 (Insulin-like Growth Factor)✓✓
HOMA-IR (Insulin Resistance)✓—
Osteocalcin✓—
Leptin✓—
Adiponectin✓—
Autoimmune Markers
ANA Screen (Antinuclear Antibodies)✓✓
ANA Titer✓—
ANA Pattern✓—
Rheumatoid Factor (RF)✓—
Celiac Disease Panel (Comprehensive)✓—
Cancer Screening Markers
CEA (Carcinoembryonic Antigen)✓—
CA-125 (Ovarian Cancer)✓—
CA 19-9 (Pancreatic/GI Cancer)✓—
AFP (Alpha-Fetoprotein - Liver Cancer)✓—
Additional Specialized Tests
Neutrophil/Lymphocyte Ratio✓✓
HDL Subfractions (Large/Small)✓✓
Transferrin Saturation✓✓
Urinalysis
Pancreas & Digestive

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Based on this comparison, make an informed decision about your blood testing provider

Frequently Asked Questions

Which is cheaper, Function Health or Healthspan?
Function Health is cheaper at $365/year, compared with $1,188/year for Healthspan.
How much do Function Health and Healthspan cost per year?
Function Health costs $365/year for 2 tests ($182 per test). Healthspan costs $1,188/year for 2 tests ($594 per test).
Which tests more biomarkers, Function Health or Healthspan?
Function Health lists more biomarkers: 160+, compared with 70+ for Healthspan. Of the markers in our database, 69 are in both panels.
Which gives more biomarkers per dollar, Function Health or Healthspan?
Function Health gives more biomarkers per dollar: 43.8 per $100 of annual cost, compared with 5.9 for Healthspan. Count alone does not decide it; check whether the markers you need are included.
What does Function Health test that Healthspan doesn't?
36 markers in our database are in Function Health's panel but not Healthspan's, including Magnesium, TPO Antibodies (Thyroid Peroxidase), Thyroglobulin Antibodies, and 33 more.
What does Healthspan test that Function Health doesn't?
Every marker we track in Healthspan's panel is also in Function Health's.
How many tests per year do Function Health and Healthspan include?
Function Health includes 2 tests per year. Healthspan includes 2 tests per year.
Where do Function Health and Healthspan draw blood?
Function Health: 2000+ Quest. Healthspan: CLIA-certified labs.
Can I use insurance with Function Health or Healthspan?
Both are direct-to-consumer services paid out of pocket. Some buyers pay with HSA/FSA funds or submit receipts for out-of-network reimbursement; check with your plan and the provider.

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